Tag antenna using microstrip line, method of manufacturing the same and radio frequency identification tag
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United States of America Patent
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Feb 18, 2014
Grant Date -
Dec 16, 2010
app pub date -
Jan 15, 2010
filing date -
Jun 16, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a Radio Frequency Identification (RFID) tag antenna. The tag antenna includes a lower dielectric substrate and an upper dielectric substrate. The lower dielectric substrate is provided at a lower surface thereof with a ground plane and at an upper surface thereof with two microstrip lines. The microstrip lines each have an open-end, the open ends spaced apart from each other from a middle of the lower dielectric substrate while facing each other to form a radiating slot from which radiation of electromagnetic waves occurs. The upper dielectric substrate is provided at an upper surface thereof with at least one electric capacitive device and is stacked on the lower dielectric substrate. The RFID tag antenna enhances radiation efficiency while achieving miniaturization.
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