Polarization Reconfigurable Patch Antenna for Compact and Low Cost UHF RFID Reader

被引：0
|
作者：
Tolin, Enrico [1 ]
Vipiana, Francesca [1 ]
Bruni, Simona [2 ]
Bahr, Achim [2 ]
机构：
[1] Politecn Torino, Dept Elect & Telecom, Turin, Italy
[2] IMST GmbH, Dept Antennas & EM Modeling, Kamp Lintfort, Germany
来源：
2019 IEEE INTERNATIONAL CONFERENCE ON RFID TECHNOLOGY AND APPLICATIONS (IEEE RFID-TA 2019) | 2019年
关键词：
UHF RFID; polarization agility; reconfigurable feeding network; RFID reader antenna;
D O I：
10.1109/rfid-ta.2019.8892109
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a patch antenna designed for Ultra High Frequency (UHF) Radio Frequency IDentification (RFID) reader including a reconfigurable feeding for achieving polarization agility. The switchable polarization improves the polarization efficiency in comparison with standard circular polarized antenna solutions. CMOS switches are used in the reconfigurable feeding network for enabling higher power transmission and uncomplicated control with respect to solutions involving varactors and PIN diodes. Moreover, the designed patch antenna and ground planes have reduced size, for best integration of the reader in the required application. The combination of antenna and reconfigurable feeding network has been tested through simulations, showing good performance over the EU RFID frequency band (865-868 MHz). Due to its flexible and inexpensive structure, the proposed reconfigurable feeding system is a promising alternative to standard circular polarized reader antenna approaches.
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页数：3
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