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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2023-11-24
Leaky Mode Analysis of Solid Dielectric Horn Antenna
By
Shreya Sudhakaran Menon,

    Ms. Shreya Sudhakaran Menon

    Department of Electronics

    Cochin University of Science and Technology

    India

    Homepage

Shubham Kalra,

    Dr. Shubham Kalra

    Antsys Innovations Pvt. Ltd.

    India

    Homepage

Surya Kumar Pathak,

    Dr. Surya Kumar Pathak

    Electromagnetics and Microwave Engineering Institute for Plasma Research

    India

    Homepage

Nalesh Sivanandan,

    Dr. Nalesh Sivanandan

    Department of Electronics

    CUSAT

    India

    Homepage

Supriya M. Hariharan

    Dr. Supriya M. Hariharan

    Department of Electronics

    CUSAT

    India

    Homepage

Progress In Electromagnetics Research M, Vol. 121, 95-105, 2023
doi:10.2528/PIERM23072201 | Google Scholar

Abstract
Solid dielectric horn antennas have a directional radiation pattern and high gain. However, even when a solid dielectric horn antenna is excited with the fundamental mode metallic waveguide, there is a possibility that higher order modes in the guided region will be generated. Also, the energy can leak from the normal direction to the dielectric horn generating a leaky mode. It is one of the reasons that higher-order guided modes and leaky modes analysis of horn becomes important. In this paper, propagation characteristics for solid dielectric horns are derived and computed for fundamental and higher-order guided and also leaky modes in a solid dielectric horn antenna. We have also analyzed the radiation characteristics of the leaky mode and guided mode of a solid dielectric horn. Finally, radiation equations for a solid dielectric horn antenna that were deduced earlier by some of the authors, but omitted for brevity are given and compared with numerical and measured results. These results have been further verified by comparing them with the already reported literature on guided mode radiation characteristics of the solid dielectric horn. From the plotted graphs given in the paper, we can infer that the proposed propagation constant equations and radiation equations predict dispersion characteristics and the radiation pattern of guided and leaky modes well, respectively.
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Citation
Shreya Sudhakaran Menon, Shubham Kalra, Surya Kumar Pathak, Nalesh Sivanandan, and Supriya M. Hariharan, "Leaky Mode Analysis of Solid Dielectric Horn Antenna," Progress In Electromagnetics Research M, Vol. 121, 95-105, 2023.
doi:10.2528/PIERM23072201
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