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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-10-11
Circular Ring Shaped Polarization Reconfigurable Antenna for Wireless Communications
By
Manavalan Saravanan,

    Dr. Manavalan Saravanan

    Department of Electronics and Communication Engineering

    Hindustan University

    India

    Homepage

Madihally Janardhana Rangachar

    Dr. Madihally Janardhana Rangachar

    Department of Electronics and Communication Engineering

    Hindustan University

    India

    Homepage

Progress In Electromagnetics Research M, Vol. 74, 105-113, 2018
doi:10.2528/PIERM18081608 | Google Scholar

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.
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Citation
Manavalan Saravanan, and 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
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