Dual horn, multi-band radar detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 3, 1990
Grant Date -
N/A
app pub date -
Sep 12, 1988
filing date -
Dec 23, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns a radar detection device--particularly a radar detection for police radar--which is improved with regard to undesirable microwave emissions therefrom. For the X-band and the K-band, for example, two horn antennae are provided, each associated with a local oscillator. A mixer is provided to mix signals from each horn antenna and from its respective local oscillator. Each antenna is made specific to radar signals within its respective band, and precautions are taken to avoid emission of K-band radiation from the larger X-band horn. For example, a bandpass filter for X-band radiation may be used in a feed line branch to the mixer from the X-band horn. The K-band radiation may be fed through in a feed line branch approaching the mixer from an opposed direction.
First Claim
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