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A broadband UHF RFID Tag antenna with a novel T-matching network
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2014 (Engelska)Ingår i: Progress in Electromagnetics Research Symposium, ISSN 1559-9450, s. 978-981Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In this paper, an-ultra-high frequency (UHF) passive broadband radio frequency identification (RFID) Tag Antenna with a novel T-matching network is presented. By slightly tuned the arm lengths of the T-matching network, the impedance matching between the antenna and the chip and a broad impedance bandwidth is obtained. Thanks to the bent radiating element, the size reduction of the proposed antenna is realized. The bandwidth (S11 < -20 dB) and the corresponding 3 dB PRC bandwidth of the proposed antenna are 133MHz (835-968 MHz) and 88MHz (882-970 MHz) respectively, which means that both bandwidths are wide enough to cover the whole global UHF RFID frequency band. In the simulated results, a smooth and stable gain curve between 0.04 dBi to 1.86 dBi is found throughout the entire operating frequency band, and a gain of 1.38 dBi is obtained at the desired operating frequency point (915 MHz). In conclusion, the designed antenna owns the advantages of low-profile, compact size (56×56mm2), low cost and stable gain. Based on the simple structure, the designed tag antenna can be easily manufacture and widely used in practical applications.

Ort, förlag, år, upplaga, sidor
2014. s. 978-981
Nyckelord [en]
Antennas, Bandwidth, Electric impedance, Frequency bands
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:kth:diva-168513ISI: 000393225900218Scopus ID: 2-s2.0-84911098681OAI: oai:DiVA.org:kth-168513DiVA, id: diva2:818534
Konferens
Progress in Electromagnetics Research Symposium, PIERS 2014; Guangzhou; China
Anmärkning

QC 20150609

Tillgänglig från: 2015-06-09 Skapad: 2015-06-04 Senast uppdaterad: 2022-06-23Bibliografiskt granskad

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He, Sailing

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