Microwave coupling arrangement

Details Microwave coupling arrangement Microwave coupling arrangement

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H03H 7/46 (2006.01) H01P 1/16 (2006.01) H01Q 5/00 (2006.01) H01Q 13/28 (2006.01) H01Q 21/30 (2006.01) H01Q 25/04 (2006.01) H03H 9/70 (2006.01)

Patent

CA 2036108

A dual band feed arrangement for a microwave antenna provides microwave communication in a lower band and in a substantially widened upper band to provide simultaneous microwave communication for three signals. One signal in the lower band propagates between the outer and inner conductors of a coaxial waveguide in the TE11 coaxial mode, and two signals in the upper band propagate in the inner conductor in TE11 circular waveguide mode. A combiner, having a conically shaped section with a plurality of irises through its sidewall, is coupled to the coaxial waveguide to provide a transformation from the TE11 modes to the HE11 waveguide modes for each of the three signals. A dielectric rod extends from within the inner conductor and into the horn antenna for propagating the second signal out of and into the antenna.

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