Microstrip antenna
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United States of America Patent
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-
Oct 24, 2006
Grant Date -
Jul 7, 2005
app pub date -
Sep 29, 2004
filing date -
Sep 29, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a microstrip antenna, a dielectric member is disposed on a grounded conductive plate. A patch antenna element is disposed on the dielectric member. Each of a plurality of conductive rods has an electrical length corresponding to one quarter of a wavelength at a resonance frequency of the microstrip antenna. The rods are arranged on an edge portion of a face of the conductive plate facing the patch antenna element, with an interval which is an electric length corresponding to a half or less of the wavelength at the resonance frequency, such that each of the rods extends perpendicularly to the conductive plate while one end thereof is electrically connected to the conductive plate.
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