Multi-band microwave detector
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United States of America Patent
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Jan 16, 2001
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N/A
app pub date -
Nov 15, 1999
filing date -
Nov 18, 1998
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Abstract
A multi-band microwave detector includes an antenna, a plurality of reception systems connected to the antenna in a parallel arrangement, a judgement circuit for judging whether or not a microwave signal detected by the reception systems is a detection target microwave signal, an alarm circuit for outputting an alarm when the judgement circuit judges the detected microwave signal to be a detection target microwave signal, wherein each reception system is constructed from a superheterodyne reception circuit having a prescribed intermediate frequency that is mutually different from the intermediate frequencies of all the other reception systems, and wherein all the reception systems are operated simultaneously during one detection cycle.
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