[天线]A novel dual-band circularly polarized antenna using a feeding configuration for RFID reader

A novel dual-band circularly polarized antenna using a feeding configuration for RFID reader ,/9|j*9H  
Shin, Dongmin1; Park, Piljun1; Kim, Jeongpyo1; Seong, Wonmo2; Choi, Jaehoon1 Source: 2007 International Conference on Electromagnetics in Advanced Applications, ICEAA'07, p 511-514, 2007, 2007 International Conference on Electromagnetics in Advanced Applications, ICEAA'07 c?S402M}  
ISBN-10: 1424407672 &ayoT
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Conference: 2007 International Conference on Electromagnetics in Advanced Applications, ICEAA'07, September 17,2007 - September 21,2007 Sponsor: Istituto Superiore Mario Boella Tecnol. Inf. Teleornicazioni; Torino Wireless Foundation z0Hh8*  
Publisher: Inst. of Elec. and Elec. Eng. Computer Society 0l*/_;wo  
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Author affiliation: GjBQxn  
1  Dept. of Electrical and Computer Eng., Hanyang Univ., 17 Haengdang-dong, Seongdong-gu, Seoul, 133-791, Korea, Republic of `#U6`[[  
2  E.M.W. Antenna Co., Ltd., Gasan-dong, Geumcheon-gu, Seoul, 153-023, Korea, Republic of ?OFvGd  
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Abstract: A novel dual-band circularly polarized (CP) RFID reader antenna utilizing the feeding network with Wilkinson power divider is proposed. The antenna consists of two square radiating patches, an isolator for dual-band performance, a bottom ground plane, and microstrip feeding networks. The impedance bandwidth for 15 dB return loss is about 110 MHz in the UHF band and about 100 MHz in the ISM band. The antenna gain is about 5.3 - 7.3 dBic in the UHF band and about 6.7 - 7.6 dBic in the ISM band over the 3 dB axial ratio CP bandwidth. © 2007 IEEE. (6 refs.) `BY`ltW  
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Controlled terms:  Antenna accessories  -  Antenna feeders  -  Antenna grounds  -  Electromagnetism  -  Feeding  -  Magnetism  -  Telecommunication systems  -  UHF devices T94$}- 5/)  
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Uncontrolled terms:  Advanced applications  -  Antenna gains  -  Axial ratio (AR)  -  Bottom ground  -  Circularly polarized (CP)  -  Circularly polarized (CP) antennas  -  CP bandwidth  -  Dual bands  -  Electro magnetics  -  Feeding configuration  -  Feeding networks  -  Impedance band widths  -  International conferences  -  ISM bands  -  Microstrip (MSL)  -  Radiating patches  -  Return Loss (RL)  -  RFID readers  -  UHF bands  -  Wilkinson power dividers d0az#Yg!  
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Classification Code:   691.2 M .. eyV904<F  
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