Title :
Reflector antenna analysis by simple photography
Author :
Eskelinen, Petri ; Ponka, K.
Author_Institution :
Kotka Inst. of Technol., Finland
fDate :
4/1/1997 12:00:00 AM
Abstract :
The performance of a conventional microwave parabolic dish reflector can be estimated from a 35 mm photo, which is taken when the dish is illuminated by a small light bulb mounted at its feed point. Both random surface errors, structural deformations and feed positioning problems can be analyzed. If only go/no go-information is needed, no optical interferometry is necessary.
Keywords :
antenna radiation patterns; antenna testing; microwave antennas; microwave measurement; photographic applications; photography; reflector antenna feeds; reflector antennas; 15 GHz; feed point mounted; feed positioning problems; microwave measurements; microwave parabolic dish reflector; performance; radiation patterns; random surface errors; reflector antenna analysis; relative gain values; simple photography; small light bulb illuminated; structural deformations; Antenna measurements; Feeds; Microwave measurements; Optical interferometry; Optical surface waves; Optical waveguides; Photography; Reflector antennas; Shape; Testing;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
