Broadband circularly polarized stacked patch antenna for UHF RFID applications

2007 ◽  
Author(s):  
Hang Leong Chung ◽  
Xianming Qing ◽  
Zhi Ning
Keyword(s):  
Patch Antenna ◽  
Uhf Rfid ◽  
Circularly Polarized ◽  
Rfid Applications ◽  
Stacked Patch Antenna

scholarly journals A COMPACT BROADBAND CIRCULARLY-POLARIZED PATCH ANTENNA WITH WIDE AXIAL-RATIO BEAMWIDTH FOR UNIVERSAL UHF RFID APPLICATIONS

2021 ◽  
Vol 113 ◽  
pp. 1-11
Author(s):  
Zhongbao Wang ◽  
Ya-Nan Wang ◽  
Xinhong Liu ◽  
Hongmei Liu ◽  
Shao-Jun Fang
Keyword(s):  
Patch Antenna ◽  
Axial Ratio ◽  
Uhf Rfid ◽  
Circularly Polarized ◽  
Rfid Applications

scholarly journals A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications

2007 ◽  
Vol 2007 ◽  
pp. 1-8 ◽  
Author(s):  
Hang Leong Chung ◽  
Xianming Qing ◽  
Zhi Ning Chen
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Axial Ratio ◽  
Uhf Rfid ◽  
Circularly Polarized ◽  
Parametric Studies ◽  
Hybrid Coupler ◽  
Rfid Applications ◽  
Uhf Band

A broadband circularly polarized stacked probe-fed antenna suitable for UHF RFID applications is presented and studied. The proposed antenna is fed by two probes which are connected to a hybrid coupler. Two parasitic patches are stacked above a primary probe-fed patch to enhance the bandwidth of the antenna. The optimized antenna prototype achieves gain of more than 6.5 dBic, axial ratio of less than 3.0 dB, and return loss of less than−15 dB over the UHF band of 820–980 MHz (17.7%). Parametric studies are carried out to demonstrate the effects of antenna geometry parameters on the performance. The proposed antenna can be a good candidate for UHF RFID applications.

Design and Experiment of a Wideband Circularly Polarized Stacked Patch Antenna for Universal UHF RFID Readers

2021 ◽  
Author(s):  
Sathaporn Konjunthes ◽  
Suramate Chalermwisutkul ◽  
Prayoot Akkaraekthalin ◽  
Wanwisa Thaiwirot
Keyword(s):  
Patch Antenna ◽  
Uhf Rfid ◽  
Circularly Polarized ◽  
Stacked Patch Antenna ◽  
Rfid Readers
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