Dual-band microstrip antenna
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United States of America Patent
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May 16, 2006
Issued Date -
N/A
app pub date -
Sep 29, 2000
filing date -
Sep 30, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dual-band microstrip antenna has a ground plate and also has a central patch positioned between a pair of side patches. The antenna has a single signal feedline, connected to the central patch, and the side patches are shorted to the ground element. Conductive surfaces of the ground plate and patches that carry surface current from signal radiation are contoured such that only portions of conductive surfaces that carry more than a negligible amount of the surface current are retained. The antenna has a reduced weight and improved bandwidth over conventional antennas that operate in the 925 MHz and 1800 MHz ranges.
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