toggle quoted messageShow quoted text
Is there a way to calculate gain and beamwidth for a lens? I haven't been able to find anything.
On Wed, Oct 6, 2021 at 11:40 PM Zack Widup <w9sz.zack@...
For one thing, a 12 inch dish at 122 GHz has a beamwidth of 0.56 degrees. A 24 inch dish has a beamwidth of 0.28 degrees. My skills at aiming a dish aren't that good. The teflon lens has a beamwidth of maybe 5 degrees. A lot easier to point. If you're going for really long distances (> 25 km) you would probably want the dish. If you want to work someone closer than that, the 20 dB horn or the horn with lens works well.
73, Zack W9SZ
What is the benefit of using a lens at 122GHz over a dish?
It sounds like an intriguing option.
Warren - WF0T