how can somebody design a horn antenna?
Does anybody know what parameters should somebody check before the construction of a horn antenna at 10 Ghz?
Is there a way to calculate horn's dimensions?
regards.
atsou
In case of Pyramidal Horn antenna operating at a frequency of 10 GHz. The waveguide you should be using is WR-90. the dimensions of waveguide is 0.9"x0.4". The pyramidal horn opening will provide you the gain and beamwidth. you can adjust it according to your requirements. if u need circular polarization u have to a conical horn antenna or a Ridged septum polarizer. Please feel free to ask any other queries.
If the horn should illuminate a reflector, you may take in account the right angle. The mouth dimensions are related to the beamwidth.
Tipically, an horn illuminate a sub-reflector at -10...-12 dB at the edge or a main refletor at -12 ... -17 dB at the edge.
CAD: Look for SABOR on Google, it's free!
There are basically 2 forms (conical or pyramidal) and two type of walls (smooth and corrugate).
Of course, the corrugated one, the most difficult to build is also the most performant.
To summarize: the dimensions are related to the functions you ask to the horn. But you provided lack of requirements!
Use DUBUS. On the http://dpmc.unige.ch/dubus" target="_blank" rel="nofollow">http://<a href="http://dpmc.unige.ch...e.ch/dubus</a> is nice paper about feeding dishes by horn antennas
Look for PCaad5 you can calculate horns and another kinds of elements.
PL
Hi
you can find what you are loking in
https://www.edaboard.com/ftopic165053.html
pl