Reconfiguration of passive elements in an array antenna for controlling antenna performance
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United States of America Patent
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Mar 8, 1994
Grant Date -
N/A
app pub date -
Sep 28, 1992
filing date -
Sep 28, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed is an array antenna (10) that may be reconfigured to point in multiple directions. The array antenna includes a driven element (12) coupled to a transmission line (14) and a pair of passive elements (22) and (24). The passive elements (22) and (24) each include three antenna segments that are coupled together by a pair of optoelectronic switches (26) and (28), respectively. When the optoelectronic switches coupled to a particular passive element are closed the element functions as a reflector; when the switches are open, the element functions as a director. Other reconfigurable antennas are also disclosed, including antennas with reconfigurable gain and field pattern characteristics.
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