Printed radio frequency sensor structure and a method of preparing a RFID sensor tag
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United States of America Patent
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May 2, 2017
Grant Date -
Feb 16, 2017
app pub date -
Aug 12, 2015
filing date -
Aug 12, 2015
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Abstract
A printed radio frequency sensor structure contains: a substrate, a RF antenna arranged on a top surface of the substrate, and a protection layer covering on the RF antenna arranged, wherein plural sensing materials are directly introduced into a RF antenna mixture of the RF antenna. A method of preparing a RFID sensor tag comprising steps of: A). Printing conductive sensing ink/glue on substrate; B. Drying, curing and compressing the conductive sensing ink/glue to form a conductive antenna mixture with plural sensing materials; C). Bonding a chip on a RFID sensing antenna to form a RFID sensor tag; and D). Coating a protection layer on a top of the RFID sensor tag. Here note protection coating can fully, partially or no cover the conductive sensing antenna.
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