H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
351/19
H01Q 3/34 (2006.01) H01Q 3/26 (2006.01) H01Q 3/36 (2006.01) H01Q 19/195 (2006.01) H01Q 25/00 (2006.01)
Patent
CA 1206254
- 14 - ABSTRACT The present invention relates to an antenna arrangement which includes a polarization diplexer capable of bidirectionally directing two orthogonally polarized signals along one path in the far field of the antenna arrangement and along two separate paths in the near field for interception along at least one of the paths by an array of feed elements. The array is arranged to provide a fixed linear phase taper along one axis across the array to produce or intercept a beam squinted at an angle 90 degrees-.alpha. to the face of the array and including a signal polarized in a first direction. Phase shifting means selectively produce a linear phase taper along a second axis across the face of the array orthogonal to the first axis to cause the beam to traverse a predetermined arc in the far field of view. Polarizatrion mismatch at the array from the diplexer is overcome by providing a single properly inclined 90 degree polarization rotator or by two properly inclined 90 degree polarization rotators depending on the direction of polarizaion and whether the array is a linear or a two-dimensional array.
440707
Amitay Noach
Gans Michael J.
Kirby Eades Gale Baker
Western Electric Company Incorporated
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