Electronic tracking system for microwave antennas

Details Electronic tracking system for microwave antennas Electronic tracking system for microwave antennas

H - Electricity

01

Q

351/18

H01Q 25/04 (2006.01) H01P 1/16 (2006.01) H01Q 3/24 (2006.01)

Patent

CA 1252195

ABSTRACT OF THE DISCLOSURE A directive antenna which includes electrical means for modifying the electrical properties of the antenna, to provide the antenna with a plurality of discrete receptional states, the antenna comprising a waveguide adapted to support a fundamental propagation mode associated with boresight reception and a plurality of discrete higher order propagation modes associated with the receptional states, wherein the waveguide is coupled to a plurality of propagation mode conversion cavities each of which is switchable between a disabled condition in which it has little or no effect on the mode of propagation of the waveguide and an enabled condition in which it converts a higher order propagation mode to the fundamental propagation mode, so as to displace the direction of optimum reception from the boresight to a predetermined direction.

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