The author's first home-brew dish antenna was built without much analysis, but proved successfulenough to warrant further thought. This subsequent effort focused on analysis first and constructionsecond. Careful consideration was given to designing an antenna easy to replicate with commonhardware materials. The integration of several ideas--a circularly polarized feed, a smaller sizereflector suited to that feed, a feedhorn matched in geometry to the reflector, and a helix matched ingain to the dish's geometry--all contributed incrementally to producing a high performance, lowprofile antenna system. All indications are this antenna system performs well, even ifnot to the''paper'' design specifications. The transponder noise floor is detectable at 40,000+ km. Success!
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