A UHF RFID ANTENNA USING DOUBLE-TUNED IMPEDANCE MATCHING FOR BANDWIDTH ENHANCEMENT | Zendy

Ziyang Wang | Zendy; Jinhai Liu | Zendy; Hui Li | Zendy; Yingzeng Yin | Zendy

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A UHF RFID ANTENNA USING DOUBLE-TUNED IMPEDANCE MATCHING FOR BANDWIDTH ENHANCEMENT

Author(s) -

Ziyang Wang,

Jinhai Liu,

Hui Li,

Yingzeng Yin

Publication year - 2017

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl17070102

Subject(s) - ultra high frequency , bandwidth (computing) , impedance matching , electrical impedance , antenna tuner , electrical engineering , antenna (radio) , matching (statistics) , electronic engineering , acoustics , computer science , optoelectronics , materials science , telecommunications , dipole antenna , engineering , physics , coaxial antenna , mathematics , statistics

A broadband ultra-high-frequency (UHF) Radio Frequency Identification (RFID) antenna using double-tuned impedance matching theory is proposed. This paper presents a proximity coupled vertical meandered strip feed technique based on double-tuned impedance match which results in a wide bandwidth. This antenna mainly consists of a rectangular ground plane, a U-shaped radiation patch, and a suspended vertical meandered strip (VMS) by mesas of rotated Γ-shaped strip. The Ushaped radiation patch is fed by the VMS. The simulated and measured results show that the antenna has a very wide impedance matching bandwidth of 150 MHz (820–970 MHz) or 16.8% with the voltage standing wave ration (VSWR) less than 1.5 and achieves a high gain level about 8.5 dBi. Therefore, the proposed antenna can cover the entire UHF band of 840–960 MHz and is a good candidate for universal UHF RFID applications.

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