Broadband circular polarization satellite antenna

Details Broadband circular polarization satellite antenna Broadband circular polarization satellite antenna

H - Electricity

01

Q

H01Q 21/24 (2006.01) H01Q 21/06 (2006.01)

Patent

CA 2062255

ABSTRACT A broadband, circular polarization antenna is disclosed for use on a satellite. In one embodiment, signals are fed to, or received by, an array of electromagnetically coupled patch pairs arranged in sequential rotation by an interconnect network which is coplanar with the coupling patches of the patch pairs. The interconnect network includes phase transmission line means, the lengths of which are preselected to provide the desired phase shifting among the coupling patches. The complexity of the array and the space required are thus reduced. In the described embodiment, two such arrays are employed, each having four patch pairs. The two arrays are arranged in sequential rotation to provide normalization of the circularly polarized transmitted or received beam.

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