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Design Reflector - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement

 Post subject: Design Reflector
Posted: Thu Apr 06, 2006 9:13 am 

Joined: Thu Apr 06, 2006 9:09 am
Posts: 1
wilcome for all

i need help for Design Reflector Antenna

where i can fond some program to design

thank u

 Post subject: Design Reflector
Posted: Thu Apr 13, 2006 7:24 am 
User avatar

Joined: Fri Feb 17, 2006 12:07 pm
Posts: 218
Location: London UK
What exactly are you trying to design?
At a top level, the design of a parabolic reflector is very straight forward and can be done yourself on Excel. The profile is just the formula for a parabolic curve. The ratio of focal length to diameter should be around 0.6 for optimum efficiency.

Any text book will give you the gain for a given wavelength but is approximately
Gain = 17.5+20*LOG(F*D) dBi
where F is in GHz and D is in meters.

One of the basic books is S.Silver
Samuel Silver. Microwave Antenna Theory and Design, volume 12 of MIT Radiation Laboratory Series. McGraw-Hill, New York, 1949

I can give you more help directly by email

If you are doing a detailed analysis to consider phase errors for example and their effect on sidelobes you something like Jassik or Skolnik.

The software suites used are based on Geometric Theory of Optics (GTO) but I do not know of a commercial package. A Google with those key words might give success

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