UHF RFID READER FRONT-END HAVING WIDEBAND AND STABLE Tx/Rx ISOLATION CHARACTERISTIC

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A UHF RFID reader front-end structure having wideband and stable transmit/receive isolation characteristic is proposed. The proposed structure consists of a wideband balanced coupler and 4-port feed antenna system. The wideband RFID reader front-end has a high isolation feature insensitive to load variations. The transmit/receive isolation characteristic is achieved for UHF RFID band (860-960 MHz). The proposed structure has an isolation of more than 45 dB in the UHF RFID band according to the variations in matching and mutual coupling. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2467-2473, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25501
Publisher
WILEY-BLACKWELL
Issue Date
2010-11
Language
English
Article Type
Article
Citation

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, v.52, no.11, pp.2467 - 2473

ISSN
0895-2477
DOI
10.1002/mop.25501
URI
http://hdl.handle.net/10203/94307
Appears in Collection
EE-Journal Papers(저널논문)
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