Antenna Pattern Distortion due to 2 antenna placed in near vicinity

February 15th 07, 11:36 AM posted to rec.radio.amateur.antenna

Rohit

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First recorded activity by RadioBanter: Dec 2006

Posts: 6

Antenna Pattern Distortion due to 2 antenna placed in near vicinity

( I am working in GHz range and so the spacing of multiples of
wavelength means it will be only few cms.)
One more observation i have made is that i have placed my antennas on
a rectangular plate and then on a curved surface. The former setup
gives me around -20db gain at 270deg, i.e back side of the rectangular
plate whereas in the latter case there is no such diffraction effect.
Why is it so?

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