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2018-10-11
Circular Ring Shaped Polarization Reconfigurable Antenna for Wireless Communications
By
Progress In Electromagnetics Research M, Vol. 74, 105-113, 2018
Abstract
A single fed polarization reconfigurable antenna is presented. The antenna comprises of a circular ring-shaped radiating element along with reconfigurable feed network located at its center which eliminates the need for additional space for reconfigurable feed network. A separate biasing network is placed to bias the pin diodes in the feed network for polarization reconfiguration and achieves three polarization states (linear, left-hand and right-hand circularly polarization). The antenna is designed to operate at 2.4 GHz ISM band. The antenna parameters are simulated using Ansoft high-frequency structure simulator and are validated using Agilent network analyzer (N9925A) and antenna test systems. The antenna achieves a good -10 dB impedance bandwidth of 85 MHz (2.40-2.485) GHz in linear state and 85 MHz (2.41-2.495) GHz in the circularly polarization states along with better cross-polarization isolation (≥ 15 dB) in the operating bands and hence more suitable for modern wireless communications.
Citation
Manavalan Saravanan Madihally Janardhana Rangachar , "Circular Ring Shaped Polarization Reconfigurable Antenna for Wireless Communications," Progress In Electromagnetics Research M, Vol. 74, 105-113, 2018.
doi:10.2528/PIERM18081608
http://www.jpier.org/PIERM/pier.php?paper=18081608
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