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2012-12-28
A Minimized Wideband Antenna Array with Decoupling Networks for UHF RFID Applications
By
Progress In Electromagnetics Research C, Vol. 35, 237-252, 2013
Abstract
A minimized wideband antenna array is presented for ultra-high frequency (UHF) radio frequency identification (RFID) reader applications. The antenna array consists of two E-shaped patch antennas and a feeding network, with the overall size 200×100×20 mm3. The feeding network could effectively decrease the antenna mutual coupling and improve the bandwidth. The measured bandwidth is about 68 MHz (896-964 MHz) under the condition of voltage standing wave ratio (VSWR) less than 2, which covers various RFID bands including North American (902-928 MHz), partial Chinese (920-925 MHz) and Japanese (952-955 MHz). The average gain is 4.5 dBi in UHF band. The principles of the antenna and the feeding network are also discussed and analyzed in this paper. At last, the key parameters are studied and show the antenna robustness.
Citation
Tianyu Jia, Hua Zhu, and Xiuping Li, "A Minimized Wideband Antenna Array with Decoupling Networks for UHF RFID Applications," Progress In Electromagnetics Research C, Vol. 35, 237-252, 2013.
doi:10.2528/PIERC12111802
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