Dual mode/dual band feed structures

Details Dual mode/dual band feed structures Dual mode/dual band feed structures

H - Electricity

01

Q

H01Q 13/00 (2006.01) H01P 5/103 (2006.01) H01Q 5/00 (2006.01) H01Q 13/02 (2006.01)

Patent

CA 2129641

2129641 9316502 PCTABS00025 A feed structure (24) is disclosed for reception of orthogonal linearly polarized signals from communication satellites. The structure includes probes (34, 36) extended through the back wall (32) of a cavity (28) with associated transmission members (50, 52) and an associated isolation member (54). The teachings of the invention are extended to structures having the probes extended through the sidewall (100) of a cavity. The teachings of the invention are further extended to dual band feed structures (124, 220 and 320). The structures are particularly suited to enhance high signal to noise ratios because of short path lengths to external receiver circuits and to enable realization in simple economical one piece castings.

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