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2012-12-13
Circularly Polarized Patch Antenna with a Stacked Slot-Ring
By
Progress In Electromagnetics Research Letters, Vol. 36, 163-170, 2013
Abstract
A probe-fed circularly polarized microstrip patch antenna is presented. By stacking a sot-ring a proper distance above the patch, traveling current along the periphery of the slot-ring is formed. The axial-ratio bandwidth is optimized by varying the size of the slot-ring and the size of the ground plane. Through this simple method, 3-dB axial-ratio bandwidth of 9.8% centered at 915 MHz is achieved for RFID use.
Citation
The-Nan Chang, and Jyun-Ming Lin, "Circularly Polarized Patch Antenna with a Stacked Slot-Ring," Progress In Electromagnetics Research Letters, Vol. 36, 163-170, 2013.
doi:10.2528/PIERL12110618
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