Communications: radio wave antennas – Antennas – Slot type
Patent
1988-06-13
1990-04-10
Hille, Rolf
Communications: radio wave antennas
Antennas
Slot type
343768, H01Q 1310
Patent
active
049164570
ABSTRACT:
A printed circuit cavity-backed crossed-slotted conductive element having two legs of each slot coupled by stripline feeders to a radio communications device. The feeders supply the radio frequency signal with a 180 degree phase shift in order to cancel cross-coupling from one leg to another around the intersection. The conductive element and the stripline feeders are mounted on separate substrates which are attached together with other elements to provide shielding and mechanical protection. The crossed-slot design reduces space and structure required for a mobile application while achieving good performance. When mounted in an array, the crossed slot antennas may be directionally tuned to a specific satellite/frequency/direction via pin diode phase shifters.
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Chung Hsin-Hsien
Foy Wong
Peng Sheng Y.
Charmasson Henri J. A.
Hille Rolf
Johnson Doris J.
Teledyne Industries Inc.
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