UHF Eggbeater Antenna
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build yourself a circularly polarized UHF Egg beater for ~437 mhz satellite reception
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- Printables
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- Other Ideas
- License
- Creative Commons — Attribution — Noncommercial
This eggbeater antenna design uses 1/2" x 1/8" aluminum that you can find at Home Depot or similar stores. It is designed for the UHF satellite band (~437mhz).
The mesh for the reflector is optional but is supposed to improve performance. It is aluminum screen door mesh.
The whole thing is intended to mount to 3/4" PVC pipe.
You will also need some M3 threaded inserts and screws to assemble it (14 or so).
Measurements should be determined using an online calculator. There are also several options to build the phase matching harness to connect the 2 loops to each other.
Read these PDFs for design and construction details
https://qsl.net/k/kd7tww/Antennas/Antenne%20Eggbeater-Engl-Part1-Full.pdf
http://146970.com/PDFs/Antenna%20Egg%20Beater%20Appendix%20A%20-%20English.pdf