Reduced Form Factor Antenna
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The Reduced Form Factor antenna has similar performance to a conventional conical spiral antenna but is one-third the size. It is designed using RF modeling tools to select patterns that meet requirements within size and performance tradeoffs. The antenna is produced by etching traces onto a cone shaped substrate according to the design pattern, and adding connections to create a functional antenna that matches the reduced size design.
![Reduced Form Factor Antenna
Design
?
After the requirements are
set, appropriate patterns are
selected
?
Guidelines for the appropriate
pattern show what the
pattern, size, and
performance tradeoffs are
?
Using RF modeling tools,
performance is gauged for the
selected pattern and size
Effects of Pitching Angle
Pitch Angle
-5
0
5
-5
0
5
-15
-10
-5
-5
0
5
-5
0
5
-15
-10
-5
-5
0
5
-5
0
5
-15
-10
-5
Pitch Ang. = 4 °
Pitch Ang. = 20 °
Pitch Ang. = 10 °
200 300 400 500 600 700 800 900 1000
-15
-10
-5
0
5
Frequency[MHz]
RealizedGain[dB]
ang. = 4 deg
ang. = 10 deg
ang. = 20 deg](https://image.slidesharecdn.com/reducedformfactorantenna-171115225440/85/Reduced-Form-Factor-Antenna-2-320.jpg)
![Technical Details
Effects of Pitching Angle
Pitch Angle
-5
0
5
-5
0
5
-15
-10
-5
-5
0
5
-5
0
5
-15
-10
-5
-5
0
5
-5
0
5
-15
-10
-5
Pitch Ang. = 4 ° Pitch Ang. = 20 °
200 300 400 500 600 700 800 900 1000
-15
-10
-5
0
5
Frequency [MHz]
RealizedGain[dB]
ang. = 4 deg
ang. = 10 deg
ang. = 20 deg
200 300 400 500 600 700 800 900 1000
-25
-20
-15
-10
-5
0
Frequency [MHz]
S11[dB]
ang. = 4 deg
ang. = 10 deg
ang. = 20 deg
Pitch Ang. = 10 °](https://image.slidesharecdn.com/reducedformfactorantenna-171115225440/85/Reduced-Form-Factor-Antenna-3-320.jpg)
![Technical Details
Effects of Pitching Angle
Pitch Angle
-5
0
5
-5
0
5
-15
-10
-5
-5
0
5
-5
0
5
-15
-10
-5
-5
0
5
-5
0
5
-15
-10
-5
Pitch Ang. = 4 ° Pitch Ang. = 20 °
200 300 400 500 600 700 800 900 1000
-15
-10
-5
0
5
Frequency [MHz]
RealizedGain[dB]
ang. = 4 deg
ang. = 10 deg
ang. = 20 deg
200 300 400 500 600 700 800 900 1000
-25
-20
-15
-10
-5
0
Frequency [MHz]
S11[dB]
ang. = 4 deg
ang. = 10 deg
ang. = 20 deg
Pitch Ang. = 10 °](https://image.slidesharecdn.com/reducedformfactorantenna-171115225440/85/Reduced-Form-Factor-Antenna-4-320.jpg)
Reduced Form Factor Antenna
- 1. Reduced Form Factor Antenna Technology s The Reduced Form Factor antenna has roughly The same performance as the conventional conical spiral antenna which is 3x as large
- 2. Reduced Form Factor Antenna Design ? After the requirements are set, appropriate patterns are selected ? Guidelines for the appropriate pattern show what the pattern, size, and performance tradeoffs are ? Using RF modeling tools, performance is gauged for the selected pattern and size Effects of Pitching Angle Pitch Angle -5 0 5 -5 0 5 -15 -10 -5 -5 0 5 -5 0 5 -15 -10 -5 -5 0 5 -5 0 5 -15 -10 -5 Pitch Ang. = 4 ° Pitch Ang. = 20 ° Pitch Ang. = 10 ° 200 300 400 500 600 700 800 900 1000 -15 -10 -5 0 5 Frequency[MHz] RealizedGain[dB] ang. = 4 deg ang. = 10 deg ang. = 20 deg
- 3. Technical Details Effects of Pitching Angle Pitch Angle -5 0 5 -5 0 5 -15 -10 -5 -5 0 5 -5 0 5 -15 -10 -5 -5 0 5 -5 0 5 -15 -10 -5 Pitch Ang. = 4 ° Pitch Ang. = 20 ° 200 300 400 500 600 700 800 900 1000 -15 -10 -5 0 5 Frequency [MHz] RealizedGain[dB] ang. = 4 deg ang. = 10 deg ang. = 20 deg 200 300 400 500 600 700 800 900 1000 -25 -20 -15 -10 -5 0 Frequency [MHz] S11[dB] ang. = 4 deg ang. = 10 deg ang. = 20 deg Pitch Ang. = 10 °
- 4. Technical Details Effects of Pitching Angle Pitch Angle -5 0 5 -5 0 5 -15 -10 -5 -5 0 5 -5 0 5 -15 -10 -5 -5 0 5 -5 0 5 -15 -10 -5 Pitch Ang. = 4 ° Pitch Ang. = 20 ° 200 300 400 500 600 700 800 900 1000 -15 -10 -5 0 5 Frequency [MHz] RealizedGain[dB] ang. = 4 deg ang. = 10 deg ang. = 20 deg 200 300 400 500 600 700 800 900 1000 -25 -20 -15 -10 -5 0 Frequency [MHz] S11[dB] ang. = 4 deg ang. = 10 deg ang. = 20 deg Pitch Ang. = 10 °
- 5. Reduced Form Factor Antenna Production From the design parameters, a detailed cone pattern is developed Traces are etched that match the pattern 3D manufacturing is used to create a cone with grooves that match the design pattern
- 6. Reduced Form Factor Antenna Result When the etched traces and 3D cone are combined, the result is an antenna which matches the design pattern. Matching circuits, connections, and any necessary physical structure are added.
- 7. Reduced Form Factor Antenna Conclusion ? Antenna with much reduced size and good performance was obtained. ? Size reduction techniques can be applied to almost any desired surface ? Manufacturing techniques are suitable for mass production ? Reduced form factor antennas can be integrated into most nonmetallic structures