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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2020-04-17
Dual-Band Circularly Polarized Stacked Sapphire and TMM13i Rectangular DRA
By
Richa Gupta,

    Dr. Richa Gupta

    Maharaja Surajmal Institute of Technology

    India

    Homepage

Garima Bakshi,

    Dr. Garima Bakshi

    Ansal University

    India

    Homepage

Aakash Bansal

    Dr. Aakash Bansal

    Microwave Tubes Division

    CSIR - Central Electronics Engineering Research Institute

    India

    Homepage

Progress In Electromagnetics Research M, Vol. 91, 143-153, 2020
doi:10.2528/PIERM20012701 | Google Scholar

Abstract
This paper documents a novel design of dual-band dielectric resonator antenna exhibiting circular polarization at a high-frequency band of (7.85 GHz-7.93 GHz) in addition to linearly polarized lower frequency band of (5.12 GHz-5.49 GHz) using new materials, sapphire and TMM13i for antenna design. Sapphire and TMM13i being resistant to physical change, the novel design is suitable for weather radar application as circular polarization reduces signal attenuation in adverse climatic conditions. A four-layered structure with sapphire and TMM13i stacked alternatively with aperture coupled feed is presented. Additionally, the corners of the patch have been truncated, and a slot has been etched in order to obtain the dual-band resonance and circular polarization respectively. The design is simulated using Ansys HFSS and fabricated for measurements. The VSWR (Voltage standing wave ratio) is measured to be less than two for both the bands. The simulated and measured gains of the antenna are 5.2 dB and 4.9 dB, respectively.
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Citation
Richa Gupta, Garima Bakshi, and Aakash Bansal, "Dual-Band Circularly Polarized Stacked Sapphire and TMM13i Rectangular DRA," Progress In Electromagnetics Research M, Vol. 91, 143-153, 2020.
doi:10.2528/PIERM20012701
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