Reconfigurable resonant cavity with frequency-selective surfaces and shorting posts
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United States of America Patent
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-
Sep 10, 2002
Grant Date -
Nov 1, 2001
app pub date -
Mar 15, 2001
filing date -
Mar 17, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention features a reconfigurable resonant cavity specifically for use with a slot radiator. A series of internal planes with frequency-selective materials disposed on their top surfaces, in conjunction with switchable shorting pins, is used to reconfigure the cavity's resonant frequency. PIN diodes, MEMS or other photonically or electrical activated switching devices may be used to selectively 'activate' shorting pins. A single resonant cavity may be electrically reconfigured to operate at two, three, or even more different frequency bands.
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