Miniature circularly polarized patch antenna
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United States of America Patent
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Jun 20, 2006
Grant Date -
Jun 30, 2005
app pub date -
Nov 30, 2004
filing date -
Dec 29, 2003
priority date (Note) -
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Abstract
A circularly polarized patch antenna for wireless communication devices is disclosed. The circularly polarized patch antenna includes a conductive ground plane positioned parallel to a multi-layer resonator with both disposed in a dielectric substrate. The multi-layer resonator may include top and middle conductive layers with meandering between layers. A plurality of slots may be interposed intermittently spanning the top and middle conductive layers. The meandering may be integrated with the slots. The circularly polarized patch antenna may be realized as a multi-layer printed circuit board.
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