RFID TAG ANTENNA USING DOUBLE-OPEN ENDS COUPLER STRUCTURE
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United States of America Patent
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Issued Date -
May 19, 2011
app pub date -
Nov 30, 2009
filing date -
Nov 16, 2009
priority date (Note) -
Abandoned
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Abstract
The present disclosure relates to an RFID tag, more particularly to, a UHF band RFID tag antenna using a double-open ends coupler; wherein the structure thereof is using a half wavelength dipole antenna with a double-open ends coupler mutually coupled to each other, and the RFID chip is disposed upon the coupler, and the coupler is designed to be double-open ends structure so as to, rather than prior arts, enhance the radiation without compromising the impedance match between the antenna and the chip.
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