Communications: radio wave antennas – Antennas – Wave guide type
Patent
1998-05-27
1999-11-30
Wong, Don
Communications: radio wave antennas
Antennas
Wave guide type
343786, 333 21R, 333 21A, H01Q 1300, H01P 116
Patent
active
059950579
ABSTRACT:
A dual mode horn reflector antenna for providing an antenna pattern having symmetrical beamwidths over a bandwidth of approximately 40%. An input TE.sub.10 rectangular mode signal is provided to the dual mode horn reflector antenna which generates a first TE.sub.11 circular mode signal from the input TE.sub.10 rectangular mode signal. A first TE.sub.10 square mode signal and a first TE.sub.01 square mode signal are generated from the first TE.sub.11 circular mode signal. The first TE.sub.10 square mode signal and the first TE.sub.01 square mode signal are combined generate a resultant signal. The resultant signal is incident upon a reflecting structure which generates an antenna pattern having approximately equivalent beamwidths in perpendicular planes, and reduced sidelobes.
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Chen Chun-Hong H.
Faith James T.
Malos Jennifer H.
Thousand Connie M.
TRW Inc.
Wong Don
Yatsko Michael S.
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