H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
351/21
H01Q 3/24 (2006.01)
Patent
CA 1101989
CM-76658 DIRECTIVE ANTENNA ABSTRACT OF THE DISCLOSURE An antenna system of the type wherein the radiating pattern may be controlled to direct the radiation of a signal in a selected direction. The system includes a plurality of radiating elements which are affixed to a central tower. Elements on opposite sides of the tower are coplanar in planes which are equiangular from each other. In response to a selected direction of radiation, control circuitry applies the signal to the coplanar antenna elements which are in a plane perpendicular to the selected radiating direction. Further, the control circuitry varies the electri- cal length of the remaining elements such that some act to direct, and other reflect the radiated signal.
288994
Gowling Lafleur Henderson Llp
Motorola Inc.
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