Multi-beam antenna with shared dielectric lens
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United States of America Patent
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Sep 2, 2008
Grant Date -
Dec 27, 2007
app pub date -
Mar 14, 2007
filing date -
Jun 23, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An integrated multi-beam antenna with a shared dielectric lens is disclosed. The antenna is formed by positioning the feed apertures of a plurality of waveguide feeds at positions located on the surface of the shared dielectric lens. The angular direction and shape of radiation beams produced by the waveguide feeds are determined by the physical and dielectric characteristics of the lens, the location of feed apertures of the waveguide feeds on the surface of the lens, and the frequency of electromagnetic energy propagating in the waveguide feeds. The principles of the invention are applied to realize an inexpensive, integrated multi-feed antenna adapted to provide desired angular areas of coverage for both a long range and short range radar in an automotive radar safety system.
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