Satellite communications use frequency bands between 3-30 GHz, known as SHF. Antennas are typically parabolic to reflect signals towards their centers or offsets, with some using Cassegrain designs. Key applications of satellite communications include television, telephony, and internet access. Satellites have made the world more connected by bringing live coverage of remote events and increasing access to education, communication, and information.
2. Frecuencies used
Satellite communications using the range
between 3 GHz and 30 GHz.
This range is known as SHF (Super high
Frecuency)
C Band, Ku Band, K Band and Ka Band
3. Characteristics of antennas
They have form of parable, because of it they are
parabolic calls.
There are two classes, that of primary area where the
sign bounces towards the center and the Offset (the
common mas in the homes) where the sign bounces
down of the center.
There is a call Cassegrain antenna where the signal
bounces both ways much better reception
The antennas consist of a parabolic reflector and a LNB
(Low Noise Block)
5. Conclusions
Satellite communications have made the world
get narrow, brings us to places and events
where a few years ago it was impossible to
think in just see them.
Thanks to satellite communications we can
bring education, telephony, telemedicine and
receive any kind of information immediately.