A circularly polarized antenna array with gain enhancement for long-range UHF RFID systems - Details

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Abstract：

A　2　×　2　circularly　polarized　(CP)　sequential　rotation　microstrip　patch　antenna　array　with　high　gain　for　long-range　ultra-high　frequency　(UHF)　radio　frequency　identification　(RFID)　communication　is　proposed　in　this　paper.　In　order　to　meet　the　operational　frequency　band　requirement　of　840–960　MHz　and,　at　the　same　time,　achieve　enhanced　broadside　gain,　a　two-level　sequential　rotation　structure　is　developed.　Series　power　divider　is　used　as　the　basic　element　of　the　feed　network　that　is　implemented　with　the　substrate-integrated　coaxial　line　technology　for　minimizing　radiation　losses.　The　manufactured　prototype　exhibits　a　peak　gain　of　12.5　dBic　at　900　MHz　and　an　axial　ratio　(AR)　bandwidth　(AR　≤　3　dB)　of　18.2%　from　828　to　994　MHz.　In　comparison　with　the　state-of-the-art,　the　proposed　antenna　shows　an　excellent　gain/size　trade-off.　©　2019　by　the　authors.　Licensee　MDPI,　Basel,　Switzerland.

Keyword：

Antenna arrays; Circular polarization; High gain; Sequential phase

Community：

[ 1 ] [Hu, W.]School of Information and Communication Engineering, University of Electronics Science and Technology of China, Chengdu, 611731, China
[ 2 ] [Hu, W.]School of Electronic Science and Engineering, University of Electronics Science and Technology of China, Chengdu, 611731, China
[ 3 ] [Wen, G.]School of Information and Communication Engineering, University of Electronics Science and Technology of China, Chengdu, 611731, China
[ 4 ] [Inserra, D.]School of Information and Communication Engineering, University of Electronics Science and Technology of China, Chengdu, 611731, China
[ 5 ] [Huang, Y.]School of Information and Communication Engineering, University of Electronics Science and Technology of China, Chengdu, 611731, China
[ 6 ] [Li, J.]School of Information and Communication Engineering, University of Electronics Science and Technology of China, Chengdu, 611731, China
[ 7 ] [Chen, Z.D.]School of Electronic Science and Engineering, University of Electronics Science and Technology of China, Chengdu, 611731, China
[ 8 ] [Chen, Z.D.]Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS B3H 4R2, Canada
[ 9 ] [Chen, Z.D.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350108, China

Reprint 's Address：

[Inserra, D.]School of Information and Communication Engineering, University of Electronics Science and Technology of ChinaChina

Email：

inserradaniele@uestc.edu.cn

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Source ：

Electronics (Switzerland)

ISSN： 2079-9292

Year： 2019

Issue： 4

Volume： 8

1 . 7 6 4

JCR@2018

CAS Journal Grade：4

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SCOPUS Cited Count： 16

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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