際際滷shows by User: AndreFourie4 / http://www.slideshare.net/images/logo.gif 際際滷shows by User: AndreFourie4 / Mon, 09 Oct 2017 12:09:59 GMT 際際滷Share feed for 際際滷shows by User: AndreFourie4 5 GHz Tree attenuation measurements in Johannesburg /slideshow/5-ghz-tree-attenuation-measurements-in-johannesburg/80605932 treeattenuationmeasurementsbothsiteswithtestnumbers-171009120959
Tree attenuation measurements at 5 GHz measured at Emmarentia Dam in Johannesburg. Detailed results for different distances and different vegetation. ]]>
Tree attenuation measurements at 5 GHz measured at Emmarentia Dam in Johannesburg. Detailed results for different distances and different vegetation. ]]> Mon, 09 Oct 2017 12:09:59 GMT /slideshow/5-ghz-tree-attenuation-measurements-in-johannesburg/80605932 AndreFourie4@slideshare.net(AndreFourie4) 5 GHz Tree attenuation measurements in Johannesburg AndreFourie4 Tree attenuation measurements at 5 GHz measured at Emmarentia Dam in Johannesburg. Detailed results for different distances and different vegetation. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/treeattenuationmeasurementsbothsiteswithtestnumbers-171009120959-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Tree attenuation measurements at 5 GHz measured at Emmarentia Dam in Johannesburg. Detailed results for different distances and different vegetation.
5 GHz Tree attenuation measurements in Johannesburg from Andre Fourie
]]> 721 2 https://cdn.slidesharecdn.com/ss_thumbnails/treeattenuationmeasurementsbothsiteswithtestnumbers-171009120959-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Antennas in practice - EM fundamentals and antenna selection /slideshow/antennas-in-practice-em-fundamentals-and-antenna-selection/75957880 antennasinpractice-170514095137
This book Antennas in Practice has been in existence in a multitude of forms since about 1989. It has been run as a Continuing Engineering Education (CEE) course only sporadically in those years. It has been revamped on several occasions, mainly reflecting changing typesetting and graphics capabilities, but this (more formal) incarnation represents a total re-evaluation, re-design and re-implementation. Much (older) material has been excised, and a lot of new material has been researched and included. Wireless technology has really moved out of the esoteric and into the commonplace arena. Technologies like HiperLAN, Bluetooth, WAP, etc are well known by the layman and are promising easy, wireless connectivity at ever increasing rates. Reality is a little different and is dependent on a practical understanding of the antenna issues involved in these emerging technologies. Although a fair amount of background theory is covered, its goal is to provide a framework for understanding practical antennas that are useful. Many design issues are covered, but in many cases, the cookbook designs offered in this book are good-enough starting points, but still nonoptimal designs, only achievable by simulation, and testing. As a result, the book places a fair amount of emphasis on antenna simulation software, such as SuperNEC. Ordinarily, if this book is run as a CEE course, it is accompanied by a SuperNEC SimulationWorkshop, a hands-on introduction to SuperNEC. It is only through playing with simulation software that a gut feel is attained for many of the issues at stake in antenna design. Alan Robert Clark Andre P C Fourie Version 1.4, December 23, 2002]]>
This book Antennas in Practice has been in existence in a multitude of forms since about 1989. It has been run as a Continuing Engineering Education (CEE) course only sporadically in those years. It has been revamped on several occasions, mainly reflecting changing typesetting and graphics capabilities, but this (more formal) incarnation represents a total re-evaluation, re-design and re-implementation. Much (older) material has been excised, and a lot of new material has been researched and included. Wireless technology has really moved out of the esoteric and into the commonplace arena. Technologies like HiperLAN, Bluetooth, WAP, etc are well known by the layman and are promising easy, wireless connectivity at ever increasing rates. Reality is a little different and is dependent on a practical understanding of the antenna issues involved in these emerging technologies. Although a fair amount of background theory is covered, its goal is to provide a framework for understanding practical antennas that are useful. Many design issues are covered, but in many cases, the cookbook designs offered in this book are good-enough starting points, but still nonoptimal designs, only achievable by simulation, and testing. As a result, the book places a fair amount of emphasis on antenna simulation software, such as SuperNEC. Ordinarily, if this book is run as a CEE course, it is accompanied by a SuperNEC SimulationWorkshop, a hands-on introduction to SuperNEC. It is only through playing with simulation software that a gut feel is attained for many of the issues at stake in antenna design. Alan Robert Clark Andre P C Fourie Version 1.4, December 23, 2002]]> Sun, 14 May 2017 09:51:36 GMT /slideshow/antennas-in-practice-em-fundamentals-and-antenna-selection/75957880 AndreFourie4@slideshare.net(AndreFourie4) Antennas in practice - EM fundamentals and antenna selection AndreFourie4 This book Antennas in Practice has been in existence in a multitude of forms since about 1989. It has been run as a Continuing Engineering Education (CEE) course only sporadically in those years. It has been revamped on several occasions, mainly reflecting changing typesetting and graphics capabilities, but this (more formal) incarnation represents a total re-evaluation, re-design and re-implementation. Much (older) material has been excised, and a lot of new material has been researched and included. Wireless technology has really moved out of the esoteric and into the commonplace arena. Technologies like HiperLAN, Bluetooth, WAP, etc are well known by the layman and are promising easy, wireless connectivity at ever increasing rates. Reality is a little different and is dependent on a practical understanding of the antenna issues involved in these emerging technologies. Although a fair amount of background theory is covered, its goal is to provide a framework for understanding practical antennas that are useful. Many design issues are covered, but in many cases, the cookbook designs offered in this book are good-enough starting points, but still nonoptimal designs, only achievable by simulation, and testing. As a result, the book places a fair amount of emphasis on antenna simulation software, such as SuperNEC. Ordinarily, if this book is run as a CEE course, it is accompanied by a SuperNEC SimulationWorkshop, a hands-on introduction to SuperNEC. It is only through playing with simulation software that a gut feel is attained for many of the issues at stake in antenna design. Alan Robert Clark Andre P C Fourie Version 1.4, December 23, 2002 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/antennasinpractice-170514095137-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> This book Antennas in Practice has been in existence in a multitude of forms since about 1989. It has been run as a Continuing Engineering Education (CEE) course only sporadically in those years. It has been revamped on several occasions, mainly reflecting changing typesetting and graphics capabilities, but this (more formal) incarnation represents a total re-evaluation, re-design and re-implementation. Much (older) material has been excised, and a lot of new material has been researched and included. Wireless technology has really moved out of the esoteric and into the commonplace arena. Technologies like HiperLAN, Bluetooth, WAP, etc are well known by the layman and are promising easy, wireless connectivity at ever increasing rates. Reality is a little different and is dependent on a practical understanding of the antenna issues involved in these emerging technologies. Although a fair amount of background theory is covered, its goal is to provide a framework for understanding practical antennas that are useful. Many design issues are covered, but in many cases, the cookbook designs offered in this book are good-enough starting points, but still nonoptimal designs, only achievable by simulation, and testing. As a result, the book places a fair amount of emphasis on antenna simulation software, such as SuperNEC. Ordinarily, if this book is run as a CEE course, it is accompanied by a SuperNEC SimulationWorkshop, a hands-on introduction to SuperNEC. It is only through playing with simulation software that a gut feel is attained for many of the issues at stake in antenna design. Alan Robert Clark Andre P C Fourie Version 1.4, December 23, 2002
Antennas in practice - EM fundamentals and antenna selection from Andre Fourie
]]> 15457 17 https://cdn.slidesharecdn.com/ss_thumbnails/antennasinpractice-170514095137-thumbnail.jpg?width=120&height=120&fit=bounds document 000000 http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Antenna launch - Omni-291 poynting /slideshow/antenna-launch-omni291-poynting/65503024 antennalaunch-omni-291poynting-160830104957
Poynting recently launched a new Omni-directional antenna that is custom made for use on boats. The antenna covers the GSM, UMTS, WCDMA, Wi-Fi and 4G/ LTE bands and is future-proof, thanks to its inclusion of the new 450 MHz ranges. Marine antenna.]]>
Poynting recently launched a new Omni-directional antenna that is custom made for use on boats. The antenna covers the GSM, UMTS, WCDMA, Wi-Fi and 4G/ LTE bands and is future-proof, thanks to its inclusion of the new 450 MHz ranges. Marine antenna.]]> Tue, 30 Aug 2016 10:49:57 GMT /slideshow/antenna-launch-omni291-poynting/65503024 AndreFourie4@slideshare.net(AndreFourie4) Antenna launch - Omni-291 poynting AndreFourie4 Poynting recently launched a new Omni-directional antenna that is custom made for use on boats. The antenna covers the GSM, UMTS, WCDMA, Wi-Fi and 4G/ LTE bands and is future-proof, thanks to its inclusion of the new 450 MHz ranges. Marine antenna. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/antennalaunch-omni-291poynting-160830104957-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Poynting recently launched a new Omni-directional antenna that is custom made for use on boats. The antenna covers the GSM, UMTS, WCDMA, Wi-Fi and 4G/ LTE bands and is future-proof, thanks to its inclusion of the new 450 MHz ranges. Marine antenna.
Antenna launch - Omni-291 poynting from Andre Fourie
]]> 150 2 https://cdn.slidesharecdn.com/ss_thumbnails/antennalaunch-omni-291poynting-160830104957-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Unieke antenna vir blitsmotor in SA gemaak. - Die Beeld /slideshow/unieke-antenna-vir-blitsmotor-in-sa-gemaak-die-beeld/64861874 uniekeantennavirblitsmotorinsuidafrikagemaak-beeld-160810075315
"'n Unieieke antenna wat netjies in dies tertvind van die supersinese otor Bloodhuid pas, is spesiaal in Suid Afrika vervaardig"]]>
"'n Unieieke antenna wat netjies in dies tertvind van die supersinese otor Bloodhuid pas, is spesiaal in Suid Afrika vervaardig"]]> Wed, 10 Aug 2016 07:53:15 GMT /slideshow/unieke-antenna-vir-blitsmotor-in-sa-gemaak-die-beeld/64861874 AndreFourie4@slideshare.net(AndreFourie4) Unieke antenna vir blitsmotor in SA gemaak. - Die Beeld AndreFourie4 "'n Unieieke antenna wat netjies in dies tertvind van die supersinese otor Bloodhuid pas, is spesiaal in Suid Afrika vervaardig" <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/uniekeantennavirblitsmotorinsuidafrikagemaak-beeld-160810075315-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> &quot;&#39;n Unieieke antenna wat netjies in dies tertvind van die supersinese otor Bloodhuid pas, is spesiaal in Suid Afrika vervaardig&quot;
Unieke antenna vir blitsmotor in SA gemaak. - Die Beeld from Andre Fourie
]]> 127 3 https://cdn.slidesharecdn.com/ss_thumbnails/uniekeantennavirblitsmotorinsuidafrikagemaak-beeld-160810075315-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Poynting antenna setting sail for the Rio Olympics - Dataweek /slideshow/poynting-antenna-setting-sail-for-the-rio-olympics-dataweek/64861716 poyntingantennasettingsailforrioolympics-dataweek-160810074759
The German Olympic sailing team will use Poynting's cutting edge OMNI-291 marine and coastal antenna for its land to vessel communication during the 2016 Summer Olympic games. ]]>
The German Olympic sailing team will use Poynting's cutting edge OMNI-291 marine and coastal antenna for its land to vessel communication during the 2016 Summer Olympic games. ]]> Wed, 10 Aug 2016 07:47:59 GMT /slideshow/poynting-antenna-setting-sail-for-the-rio-olympics-dataweek/64861716 AndreFourie4@slideshare.net(AndreFourie4) Poynting antenna setting sail for the Rio Olympics - Dataweek AndreFourie4 The German Olympic sailing team will use Poynting's cutting edge OMNI-291 marine and coastal antenna for its land to vessel communication during the 2016 Summer Olympic games. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/poyntingantennasettingsailforrioolympics-dataweek-160810074759-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> The German Olympic sailing team will use Poynting&#39;s cutting edge OMNI-291 marine and coastal antenna for its land to vessel communication during the 2016 Summer Olympic games.
Poynting antenna setting sail for the Rio Olympics - Dataweek from Andre Fourie
]]> 197 2 https://cdn.slidesharecdn.com/ss_thumbnails/poyntingantennasettingsailforrioolympics-dataweek-160810074759-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Die antenna help uitsaai. Artikel in Die Burger /slideshow/die-antenna-help-uitsaai-artikel-in-die-burger/64861428 diepoyntingantennahelpuitsaai-dieburger-160810073533
Poynting Antennas het die antenna wat in die Bloodhound supersoniese motor se stertvin inpas ontwerp. Poynting ontwerp en verkoop antennas wat jou internet spoed verbeter. Hulle is gebasseer in Midrand en Kaapstad. Meer info en pryse by www.antennas.co.za. ]]>
Poynting Antennas het die antenna wat in die Bloodhound supersoniese motor se stertvin inpas ontwerp. Poynting ontwerp en verkoop antennas wat jou internet spoed verbeter. Hulle is gebasseer in Midrand en Kaapstad. Meer info en pryse by www.antennas.co.za. ]]> Wed, 10 Aug 2016 07:35:33 GMT /slideshow/die-antenna-help-uitsaai-artikel-in-die-burger/64861428 AndreFourie4@slideshare.net(AndreFourie4) Die antenna help uitsaai. Artikel in Die Burger AndreFourie4 Poynting Antennas het die antenna wat in die Bloodhound supersoniese motor se stertvin inpas ontwerp. Poynting ontwerp en verkoop antennas wat jou internet spoed verbeter. Hulle is gebasseer in Midrand en Kaapstad. Meer info en pryse by www.antennas.co.za. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/diepoyntingantennahelpuitsaai-dieburger-160810073533-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Poynting Antennas het die antenna wat in die Bloodhound supersoniese motor se stertvin inpas ontwerp. Poynting ontwerp en verkoop antennas wat jou internet spoed verbeter. Hulle is gebasseer in Midrand en Kaapstad. Meer info en pryse by www.antennas.co.za.
Die antenna help uitsaai. Artikel in Die Burger from Andre Fourie
]]> 129 2 https://cdn.slidesharecdn.com/ss_thumbnails/diepoyntingantennahelpuitsaai-dieburger-160810073533-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Bloodhound se antenna in Suid-Afrika gemaak - artikel in Die Volksblad /slideshow/bloodhound-se-antenna-in-suidafrika-gemaak-artikel-in-die-volksblad/64861322 bloodhoundseantennainsuidafrikagemaak-volksblad-160810073032
Poynting Antennas het die unieke antenna wat in die Bloodhound supersoniese motor se stertvin inpas ontwerp. Poynting ontwerp en verkoop antennas wat jou internet spoed verbeter. Hulle is gebasseer in Midrand en Kaapstad. Meer info en pryse by www.antennas.co.za. ]]>
Poynting Antennas het die unieke antenna wat in die Bloodhound supersoniese motor se stertvin inpas ontwerp. Poynting ontwerp en verkoop antennas wat jou internet spoed verbeter. Hulle is gebasseer in Midrand en Kaapstad. Meer info en pryse by www.antennas.co.za. ]]> Wed, 10 Aug 2016 07:30:32 GMT /slideshow/bloodhound-se-antenna-in-suidafrika-gemaak-artikel-in-die-volksblad/64861322 AndreFourie4@slideshare.net(AndreFourie4) Bloodhound se antenna in Suid-Afrika gemaak - artikel in Die Volksblad AndreFourie4 Poynting Antennas het die unieke antenna wat in die Bloodhound supersoniese motor se stertvin inpas ontwerp. Poynting ontwerp en verkoop antennas wat jou internet spoed verbeter. Hulle is gebasseer in Midrand en Kaapstad. Meer info en pryse by www.antennas.co.za. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/bloodhoundseantennainsuidafrikagemaak-volksblad-160810073032-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Poynting Antennas het die unieke antenna wat in die Bloodhound supersoniese motor se stertvin inpas ontwerp. Poynting ontwerp en verkoop antennas wat jou internet spoed verbeter. Hulle is gebasseer in Midrand en Kaapstad. Meer info en pryse by www.antennas.co.za.
Bloodhound se antenna in Suid-Afrika gemaak - artikel in Die Volksblad from Andre Fourie
]]> 152 2 https://cdn.slidesharecdn.com/ss_thumbnails/bloodhoundseantennainsuidafrikagemaak-volksblad-160810073032-thumbnail.jpg?width=120&height=120&fit=bounds document 000000 http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Goodbye, Yagi - Popular Mechanics, May 2016 /slideshow/goodbye-yagi-popular-mechanics-may-2016/62529774 digiantpopularmechanics-160530090309
South Africans invent the first new TV antenna in decades and usher in a new era of digital reception.]]>
South Africans invent the first new TV antenna in decades and usher in a new era of digital reception.]]> Mon, 30 May 2016 09:03:09 GMT /slideshow/goodbye-yagi-popular-mechanics-may-2016/62529774 AndreFourie4@slideshare.net(AndreFourie4) Goodbye, Yagi - Popular Mechanics, May 2016 AndreFourie4 South Africans invent the first new TV antenna in decades and usher in a new era of digital reception. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/digiantpopularmechanics-160530090309-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> South Africans invent the first new TV antenna in decades and usher in a new era of digital reception.
Goodbye, Yagi - Popular Mechanics, May 2016 from Andre Fourie
]]> 413 5 https://cdn.slidesharecdn.com/ss_thumbnails/digiantpopularmechanics-160530090309-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Antenna parameters part 3 - Input impedance and VSWR /slideshow/antenna-parameters-part-3-input-impedance-and-vswr/60869356 antennaparameterspart3-inputimpedanceandvswr-160413143831
VSWR stands for Voltage Standing Wave Ratio, and is also referred to as Standing Wave Ratio (SWR)The input impedance of an antenna per se is not usually reported directly in the brochure; rather the antennas nominal impedance and its VSWR are given. The nominal impedance is the impedance for which the antenna is (ideally) designed and the VSWR can be seen as the antennas deviation from this value. The VSWR (voltage standing wave ratio) is a parameter that is derived from the antennas input impedance and the reported nominal impedance. One can view the VSWR as how far the antennas input impedance is from the nominal impedance. If the VSWR at a particular frequency is given as 1:1, then you can deduce that the antenna input impedance is equal to the nominal impedance. The higher the VSWR the further the antenna input impedance is from the nominal impedance. ]]>
VSWR stands for Voltage Standing Wave Ratio, and is also referred to as Standing Wave Ratio (SWR)The input impedance of an antenna per se is not usually reported directly in the brochure; rather the antennas nominal impedance and its VSWR are given. The nominal impedance is the impedance for which the antenna is (ideally) designed and the VSWR can be seen as the antennas deviation from this value. The VSWR (voltage standing wave ratio) is a parameter that is derived from the antennas input impedance and the reported nominal impedance. One can view the VSWR as how far the antennas input impedance is from the nominal impedance. If the VSWR at a particular frequency is given as 1:1, then you can deduce that the antenna input impedance is equal to the nominal impedance. The higher the VSWR the further the antenna input impedance is from the nominal impedance. ]]> Wed, 13 Apr 2016 14:38:31 GMT /slideshow/antenna-parameters-part-3-input-impedance-and-vswr/60869356 AndreFourie4@slideshare.net(AndreFourie4) Antenna parameters part 3 - Input impedance and VSWR AndreFourie4 VSWR stands for Voltage Standing Wave Ratio, and is also referred to as Standing Wave Ratio (SWR)The input impedance of an antenna per se is not usually reported directly in the brochure; rather the antennas nominal impedance and its VSWR are given. The nominal impedance is the impedance for which the antenna is (ideally) designed and the VSWR can be seen as the antennas deviation from this value. The VSWR (voltage standing wave ratio) is a parameter that is derived from the antennas input impedance and the reported nominal impedance. One can view the VSWR as how far the antennas input impedance is from the nominal impedance. If the VSWR at a particular frequency is given as 1:1, then you can deduce that the antenna input impedance is equal to the nominal impedance. The higher the VSWR the further the antenna input impedance is from the nominal impedance. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/antennaparameterspart3-inputimpedanceandvswr-160413143831-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> VSWR stands for Voltage Standing Wave Ratio, and is also referred to as Standing Wave Ratio (SWR)The input impedance of an antenna per se is not usually reported directly in the brochure; rather the antennas nominal impedance and its VSWR are given. The nominal impedance is the impedance for which the antenna is (ideally) designed and the VSWR can be seen as the antennas deviation from this value. The VSWR (voltage standing wave ratio) is a parameter that is derived from the antennas input impedance and the reported nominal impedance. One can view the VSWR as how far the antennas input impedance is from the nominal impedance. If the VSWR at a particular frequency is given as 1:1, then you can deduce that the antenna input impedance is equal to the nominal impedance. The higher the VSWR the further the antenna input impedance is from the nominal impedance.
Antenna parameters part 3 - Input impedance and VSWR from Andre Fourie
]]> 1097 4 https://cdn.slidesharecdn.com/ss_thumbnails/antennaparameterspart3-inputimpedanceandvswr-160413143831-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Antenna parameters part 2 - Polarisation /slideshow/antenna-parameters-part-2-polarisation/60507560 antennaparameterspart2-polarisation-160405134239
The polarisation specification for an antenna specifies how the electric field behaves in the far field (where the radiated wave has established itself).]]>
The polarisation specification for an antenna specifies how the electric field behaves in the far field (where the radiated wave has established itself).]]> Tue, 05 Apr 2016 13:42:38 GMT /slideshow/antenna-parameters-part-2-polarisation/60507560 AndreFourie4@slideshare.net(AndreFourie4) Antenna parameters part 2 - Polarisation AndreFourie4 The polarisation specification for an antenna specifies how the electric field behaves in the far field (where the radiated wave has established itself). <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/antennaparameterspart2-polarisation-160405134239-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> The polarisation specification for an antenna specifies how the electric field behaves in the far field (where the radiated wave has established itself).
Antenna parameters part 2 - Polarisation from Andre Fourie
]]> 428 4 https://cdn.slidesharecdn.com/ss_thumbnails/antennaparameterspart2-polarisation-160405134239-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Antenna parameters part 1: Frequency bands, Gain and Radiation Pattern /slideshow/antenna-parameters-part-1-frequency-bands-gain-and-radiation-pattern/59813380 antennaparameterspart1-frequencybandsgainandradiationpattern-160321093523
This is part of an internal document that that gives an overview of the properties of antennas for non-engineers. We have divided the document into different posts where we discus each of the parameters: Frequency bands, gain and radiation pattern Polarisation Input Impedance and VSWR Port to port Isolation and Cross-polarisation Power Handling ability Antenna Specmanship Where applicable we have added some videos explaining the properties discussed. ]]>
This is part of an internal document that that gives an overview of the properties of antennas for non-engineers. We have divided the document into different posts where we discus each of the parameters: Frequency bands, gain and radiation pattern Polarisation Input Impedance and VSWR Port to port Isolation and Cross-polarisation Power Handling ability Antenna Specmanship Where applicable we have added some videos explaining the properties discussed. ]]> Mon, 21 Mar 2016 09:35:23 GMT /slideshow/antenna-parameters-part-1-frequency-bands-gain-and-radiation-pattern/59813380 AndreFourie4@slideshare.net(AndreFourie4) Antenna parameters part 1: Frequency bands, Gain and Radiation Pattern AndreFourie4 This is part of an internal document that that gives an overview of the properties of antennas for non-engineers. We have divided the document into different posts where we discus each of the parameters: Frequency bands, gain and radiation pattern Polarisation Input Impedance and VSWR Port to port Isolation and Cross-polarisation Power Handling ability Antenna Specmanship Where applicable we have added some videos explaining the properties discussed. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/antennaparameterspart1-frequencybandsgainandradiationpattern-160321093523-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> This is part of an internal document that that gives an overview of the properties of antennas for non-engineers. We have divided the document into different posts where we discus each of the parameters: Frequency bands, gain and radiation pattern Polarisation Input Impedance and VSWR Port to port Isolation and Cross-polarisation Power Handling ability Antenna Specmanship Where applicable we have added some videos explaining the properties discussed.
Antenna parameters part 1: Frequency bands, Gain and Radiation Pattern from Andre Fourie
]]> 1141 5 https://cdn.slidesharecdn.com/ss_thumbnails/antennaparameterspart1-frequencybandsgainandradiationpattern-160321093523-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Rocketship Radio - Popular Mechanics - Feb 2016 /slideshow/rocketship-radio-popular-mechanics-feb-2016/58375447 popular-mechanics-bloodhound-poynting-160217140804
Find this article in the February 2016 edition of the South African Popular Mechanics. It gives a great overview of the innovative technology that went into the antenna designed by Poynting for the Bloodhound SSC.]]>
Find this article in the February 2016 edition of the South African Popular Mechanics. It gives a great overview of the innovative technology that went into the antenna designed by Poynting for the Bloodhound SSC.]]> Wed, 17 Feb 2016 14:08:04 GMT /slideshow/rocketship-radio-popular-mechanics-feb-2016/58375447 AndreFourie4@slideshare.net(AndreFourie4) Rocketship Radio - Popular Mechanics - Feb 2016 AndreFourie4 Find this article in the February 2016 edition of the South African Popular Mechanics. It gives a great overview of the innovative technology that went into the antenna designed by Poynting for the Bloodhound SSC. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/popular-mechanics-bloodhound-poynting-160217140804-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Find this article in the February 2016 edition of the South African Popular Mechanics. It gives a great overview of the innovative technology that went into the antenna designed by Poynting for the Bloodhound SSC.
Rocketship Radio - Popular Mechanics - Feb 2016 from Andre Fourie
]]> 6406 6 https://cdn.slidesharecdn.com/ss_thumbnails/popular-mechanics-bloodhound-poynting-160217140804-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Fixed Broadband Business Case - Short Version /AndreFourie4/fixed-broadband-business-case-short-version fixedbroadbandbusinesscaseshortversionbydrandrefourie-160127140649
The revenue that can be generated by an LTE base station is influenced by the quality of the signal received by the customer premise equipment (CPE). Most CPE come with omni-directional indoor antennas, but have provision for the connection to external antennas. Substituting the indoor antennas for directional outdoor antennas has a marked effect on the data transfer speeds of the network. There are two reasons for this. Firstly, outdoor antennas are physically larger than their indoor counterparts and thus have a higher gain. The increase in antenna gain translates directly to an increase in received signal strength. The second advantage is that the outdoor antenna sits in an environment that has much better propagating properties than the indoor antenna. Tests have shown that data speeds 3-5 times faster are possible using external antennas compared to indoor antennas. It is shown, using a primitive financial model that fairly large financial gains can be made by equipping CPE devices with external antennas. The summary financial effects below are well backed up by real life case studies and theory which interested readers can read in the remainder of this document.]]>
The revenue that can be generated by an LTE base station is influenced by the quality of the signal received by the customer premise equipment (CPE). Most CPE come with omni-directional indoor antennas, but have provision for the connection to external antennas. Substituting the indoor antennas for directional outdoor antennas has a marked effect on the data transfer speeds of the network. There are two reasons for this. Firstly, outdoor antennas are physically larger than their indoor counterparts and thus have a higher gain. The increase in antenna gain translates directly to an increase in received signal strength. The second advantage is that the outdoor antenna sits in an environment that has much better propagating properties than the indoor antenna. Tests have shown that data speeds 3-5 times faster are possible using external antennas compared to indoor antennas. It is shown, using a primitive financial model that fairly large financial gains can be made by equipping CPE devices with external antennas. The summary financial effects below are well backed up by real life case studies and theory which interested readers can read in the remainder of this document.]]> Wed, 27 Jan 2016 14:06:49 GMT /AndreFourie4/fixed-broadband-business-case-short-version AndreFourie4@slideshare.net(AndreFourie4) Fixed Broadband Business Case - Short Version AndreFourie4 The revenue that can be generated by an LTE base station is influenced by the quality of the signal received by the customer premise equipment (CPE). Most CPE come with omni-directional indoor antennas, but have provision for the connection to external antennas. Substituting the indoor antennas for directional outdoor antennas has a marked effect on the data transfer speeds of the network. There are two reasons for this. Firstly, outdoor antennas are physically larger than their indoor counterparts and thus have a higher gain. The increase in antenna gain translates directly to an increase in received signal strength. The second advantage is that the outdoor antenna sits in an environment that has much better propagating properties than the indoor antenna. Tests have shown that data speeds 3-5 times faster are possible using external antennas compared to indoor antennas. It is shown, using a primitive financial model that fairly large financial gains can be made by equipping CPE devices with external antennas. The summary financial effects below are well backed up by real life case studies and theory which interested readers can read in the remainder of this document. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/fixedbroadbandbusinesscaseshortversionbydrandrefourie-160127140649-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> The revenue that can be generated by an LTE base station is influenced by the quality of the signal received by the customer premise equipment (CPE). Most CPE come with omni-directional indoor antennas, but have provision for the connection to external antennas. Substituting the indoor antennas for directional outdoor antennas has a marked effect on the data transfer speeds of the network. There are two reasons for this. Firstly, outdoor antennas are physically larger than their indoor counterparts and thus have a higher gain. The increase in antenna gain translates directly to an increase in received signal strength. The second advantage is that the outdoor antenna sits in an environment that has much better propagating properties than the indoor antenna. Tests have shown that data speeds 3-5 times faster are possible using external antennas compared to indoor antennas. It is shown, using a primitive financial model that fairly large financial gains can be made by equipping CPE devices with external antennas. The summary financial effects below are well backed up by real life case studies and theory which interested readers can read in the remainder of this document.
Fixed Broadband Business Case - Short Version from Andre Fourie
]]> 422 11 https://cdn.slidesharecdn.com/ss_thumbnails/fixedbroadbandbusinesscaseshortversionbydrandrefourie-160127140649-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Role antennas play in a MIMO link - paper /AndreFourie4/role-antennas-play-in-a-mimo-link-paper mimo-rccpaper-150603194413-lva1-app6892
Role antennas play in a MIMO link. Paper presented by Andre Fourie at the Radio Communications Conference. MIMO, in conjunction with SDMA, is a technology that is used in 4G networks to increase the data throughput of a wireless network. The antennas used in the link have a direct correlation with the performance of a MIMO link. The antenna attributes that play the dominant performance enhancing role in MIMO links are the radiation pattern and the polarization. The nature of the indoor and outdoor channels is discussed and it is shown that a MIMO link performs far better in outdoor channels; hence the use of outdoor antenna installations is emphasized.]]>
Role antennas play in a MIMO link. Paper presented by Andre Fourie at the Radio Communications Conference. MIMO, in conjunction with SDMA, is a technology that is used in 4G networks to increase the data throughput of a wireless network. The antennas used in the link have a direct correlation with the performance of a MIMO link. The antenna attributes that play the dominant performance enhancing role in MIMO links are the radiation pattern and the polarization. The nature of the indoor and outdoor channels is discussed and it is shown that a MIMO link performs far better in outdoor channels; hence the use of outdoor antenna installations is emphasized.]]> Wed, 03 Jun 2015 19:44:13 GMT /AndreFourie4/role-antennas-play-in-a-mimo-link-paper AndreFourie4@slideshare.net(AndreFourie4) Role antennas play in a MIMO link - paper AndreFourie4 Role antennas play in a MIMO link. Paper presented by Andre Fourie at the Radio Communications Conference. MIMO, in conjunction with SDMA, is a technology that is used in 4G networks to increase the data throughput of a wireless network. The antennas used in the link have a direct correlation with the performance of a MIMO link. The antenna attributes that play the dominant performance enhancing role in MIMO links are the radiation pattern and the polarization. The nature of the indoor and outdoor channels is discussed and it is shown that a MIMO link performs far better in outdoor channels; hence the use of outdoor antenna installations is emphasized. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/mimo-rccpaper-150603194413-lva1-app6892-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Role antennas play in a MIMO link. Paper presented by Andre Fourie at the Radio Communications Conference. MIMO, in conjunction with SDMA, is a technology that is used in 4G networks to increase the data throughput of a wireless network. The antennas used in the link have a direct correlation with the performance of a MIMO link. The antenna attributes that play the dominant performance enhancing role in MIMO links are the radiation pattern and the polarization. The nature of the indoor and outdoor channels is discussed and it is shown that a MIMO link performs far better in outdoor channels; hence the use of outdoor antenna installations is emphasized.
Role antennas play in a MIMO link - paper from Andre Fourie
]]> 575 4 https://cdn.slidesharecdn.com/ss_thumbnails/mimo-rccpaper-150603194413-lva1-app6892-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 The role antennas play in a MIMO link /slideshow/mimo-radio-comms-conference-johannesburg/48959188 mimo-radiocommsconferencejohannesburg-150603194013-lva1-app6892
How antenna properties affect MIMO performance? New antenna antenna parameters to understand for selecting/designing effective MIMO (4G/LTE) communications.]]>
How antenna properties affect MIMO performance? New antenna antenna parameters to understand for selecting/designing effective MIMO (4G/LTE) communications.]]> Wed, 03 Jun 2015 19:40:13 GMT /slideshow/mimo-radio-comms-conference-johannesburg/48959188 AndreFourie4@slideshare.net(AndreFourie4) The role antennas play in a MIMO link AndreFourie4 How antenna properties affect MIMO performance? New antenna antenna parameters to understand for selecting/designing effective MIMO (4G/LTE) communications. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/mimo-radiocommsconferencejohannesburg-150603194013-lva1-app6892-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> How antenna properties affect MIMO performance? New antenna antenna parameters to understand for selecting/designing effective MIMO (4G/LTE) communications.
The role antennas play in a MIMO link from Andre Fourie
]]> 419 2 https://cdn.slidesharecdn.com/ss_thumbnails/mimo-radiocommsconferencejohannesburg-150603194013-lva1-app6892-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Powerful business model for fixed wireless data using outdoor antennas - Paper /AndreFourie4/business-radio-comms-conference-johannesburg-document business-radiocommsconferencejohannesburgdocument-150519190158-lva1-app6891
Paper presented at the 2nd Africa Radio Comms Conference in Johannesburg - Nov 2015 By Andre Fourie The revenue that can be generated by an LTE base station is influenced by the quality of the signal received by the customer premise equipment (CPE). Most CPE come with omni-directional indoor antennas, but have provision for the connection to external antennas. Substituting the indoor antennas for directional outdoor antennas has a marked effect on the data transfer speeds of the network. There are two reasons for this. Firstly, outdoor antennas are physically larger than their indoor counterparts and thus have a higher gain. The increase in antenna gain translates directly to an increase in received signal strength. The second advantage is that the outdoor antenna sits in an environment that has much better propagating properties than the indoor antenna. Tests have shown that data speeds 3-5 times faster are possible using external antennas compared to indoor antennas. It is shown, using a primitive financial model that fairly large financial gains can be made by equipping CPE devices with external antennas.]]>
Paper presented at the 2nd Africa Radio Comms Conference in Johannesburg - Nov 2015 By Andre Fourie The revenue that can be generated by an LTE base station is influenced by the quality of the signal received by the customer premise equipment (CPE). Most CPE come with omni-directional indoor antennas, but have provision for the connection to external antennas. Substituting the indoor antennas for directional outdoor antennas has a marked effect on the data transfer speeds of the network. There are two reasons for this. Firstly, outdoor antennas are physically larger than their indoor counterparts and thus have a higher gain. The increase in antenna gain translates directly to an increase in received signal strength. The second advantage is that the outdoor antenna sits in an environment that has much better propagating properties than the indoor antenna. Tests have shown that data speeds 3-5 times faster are possible using external antennas compared to indoor antennas. It is shown, using a primitive financial model that fairly large financial gains can be made by equipping CPE devices with external antennas.]]> Tue, 19 May 2015 19:01:58 GMT /AndreFourie4/business-radio-comms-conference-johannesburg-document AndreFourie4@slideshare.net(AndreFourie4) Powerful business model for fixed wireless data using outdoor antennas - Paper AndreFourie4 Paper presented at the 2nd Africa Radio Comms Conference in Johannesburg - Nov 2015 By Andre Fourie The revenue that can be generated by an LTE base station is influenced by the quality of the signal received by the customer premise equipment (CPE). Most CPE come with omni-directional indoor antennas, but have provision for the connection to external antennas. Substituting the indoor antennas for directional outdoor antennas has a marked effect on the data transfer speeds of the network. There are two reasons for this. Firstly, outdoor antennas are physically larger than their indoor counterparts and thus have a higher gain. The increase in antenna gain translates directly to an increase in received signal strength. The second advantage is that the outdoor antenna sits in an environment that has much better propagating properties than the indoor antenna. Tests have shown that data speeds 3-5 times faster are possible using external antennas compared to indoor antennas. It is shown, using a primitive financial model that fairly large financial gains can be made by equipping CPE devices with external antennas. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/business-radiocommsconferencejohannesburgdocument-150519190158-lva1-app6891-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Paper presented at the 2nd Africa Radio Comms Conference in Johannesburg - Nov 2015 By Andre Fourie The revenue that can be generated by an LTE base station is influenced by the quality of the signal received by the customer premise equipment (CPE). Most CPE come with omni-directional indoor antennas, but have provision for the connection to external antennas. Substituting the indoor antennas for directional outdoor antennas has a marked effect on the data transfer speeds of the network. There are two reasons for this. Firstly, outdoor antennas are physically larger than their indoor counterparts and thus have a higher gain. The increase in antenna gain translates directly to an increase in received signal strength. The second advantage is that the outdoor antenna sits in an environment that has much better propagating properties than the indoor antenna. Tests have shown that data speeds 3-5 times faster are possible using external antennas compared to indoor antennas. It is shown, using a primitive financial model that fairly large financial gains can be made by equipping CPE devices with external antennas.
Powerful business model for fixed wireless data using outdoor antennas - Paper from Andre Fourie
]]> 421 1 https://cdn.slidesharecdn.com/ss_thumbnails/business-radiocommsconferencejohannesburgdocument-150519190158-lva1-app6891-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Business case for fixed wireless 4G/LTE using outdoor antennas /slideshow/business-radio-comms-conference-johannesburg/47898867 business-radiocommsconferencejohannesburg-150508065826-lva1-app6892
LTE/4G networks business plans involve capex spend on radio access infrastructure to meet business objectives ito customer offerings ito bandwidth, data rates, bulk data and QoS. Assigning some Capex to CPE equipment with outdoor antennas can reduce Capex significantly for same capacity and considerably better reliability and QOS]]>
LTE/4G networks business plans involve capex spend on radio access infrastructure to meet business objectives ito customer offerings ito bandwidth, data rates, bulk data and QoS. Assigning some Capex to CPE equipment with outdoor antennas can reduce Capex significantly for same capacity and considerably better reliability and QOS]]> Fri, 08 May 2015 06:58:26 GMT /slideshow/business-radio-comms-conference-johannesburg/47898867 AndreFourie4@slideshare.net(AndreFourie4) Business case for fixed wireless 4G/LTE using outdoor antennas AndreFourie4 LTE/4G networks business plans involve capex spend on radio access infrastructure to meet business objectives ito customer offerings ito bandwidth, data rates, bulk data and QoS. Assigning some Capex to CPE equipment with outdoor antennas can reduce Capex significantly for same capacity and considerably better reliability and QOS <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/business-radiocommsconferencejohannesburg-150508065826-lva1-app6892-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> LTE/4G networks business plans involve capex spend on radio access infrastructure to meet business objectives ito customer offerings ito bandwidth, data rates, bulk data and QoS. Assigning some Capex to CPE equipment with outdoor antennas can reduce Capex significantly for same capacity and considerably better reliability and QOS
Business case for fixed wireless 4G/LTE using outdoor antennas from Andre Fourie
]]> 777 5 https://cdn.slidesharecdn.com/ss_thumbnails/business-radiocommsconferencejohannesburg-150508065826-lva1-app6892-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 https://cdn.slidesharecdn.com/profile-photo-AndreFourie4-48x48.jpg?cb=1580281933 Studied and completed B.Sc. Eng (Elec) and Ph.D Engineering programme at Wits University after matriculating in Bloemfontein. Entrepreneur for 15 years starting with Electromagnetic and Antenna consulting company in 1990 and moving to antenna manufacture and sales. Founded Poynting Innovations (Pty) Ltd in 1996 and Poynting Antennas (Pty) Ltd in 2001. Build Poynting Antennas to 150+ employees and listed on the Johannesburg Stock Exchange (JS) Alternative Exchance (AltX) in June 2008 as CEO of Poynting Holdings. After building Poynting Holdings from a R20m ($2m) in 2010 to R450m ($45m) market capitalisation in 2014 I exited Poynting Holdings by buying out Poynting Antennas in personal... http://www.poynting.co.za https://cdn.slidesharecdn.com/ss_thumbnails/treeattenuationmeasurementsbothsiteswithtestnumbers-171009120959-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/5-ghz-tree-attenuation-measurements-in-johannesburg/80605932 5 GHz Tree attenuation... https://cdn.slidesharecdn.com/ss_thumbnails/antennasinpractice-170514095137-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/antennas-in-practice-em-fundamentals-and-antenna-selection/75957880 Antennas in practice -... https://cdn.slidesharecdn.com/ss_thumbnails/antennalaunch-omni-291poynting-160830104957-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/antenna-launch-omni291-poynting/65503024 Antenna launch - Omni-...