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Reflector antenna analysis by simple photography

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2 Author(s)
Eskelinen, P. ; Kotka Inst. of Technol., Finland ; Ponka, K.

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.

Published in:

Aerospace and Electronic Systems Magazine, IEEE  (Volume:12 ,  Issue: 4 )