An analysis of leaky hybrid modes depending on structural parameters in a circular dielectric rod

Author:

Kelebekler Ersoy1ORCID

Affiliation:

1. Electricity and Energy Department , Kocaeli University , Uzunçiftlik Nuh Çimento MYO , 41180 , Kocaeli , Turkey

Abstract

Abstract Open dielectric waveguides are structures used to guide electromagnetic energy in integrated circuits above the cutoff or as leaky wave antennas propagating the energy transversely out of the waveguide in a narrow region below the cutoff. In this study, the related operating regions for the hybrid EH modes of a cylindrical dielectric rod were obtained analytically. Analyses of the leaky wave characteristics of the hybrid EH modes for various radii of the rod and various dielectric constant values were performed. The guided modes existing above the cutoff with a pure real propagation constant, and the leaky wave modes existing below the cutoff with a complex propagation constant, were obtained from the coefficient matrix of the characteristic equations system of the structure using the bisection method and Davidenko’s method, respectively. Additionally, the guided modes of the structure were obtained and designated in the light of previous studies in the literature. The results show that the frequency spectrum of the antenna mode region increases as the value of the dielectric constant and the radius of the dielectric rod decrease. In addition, a circular dielectric with a smaller radius and dielectric constant had a larger frequency spectrum in the leaky wave antenna applications.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Guiding and Leakage Dispersion Characteristic of TM01Mode in a Circular Dielectric Rod;International Journal of Antennas and Propagation;2022-10-17

2. Silindirik Dielektrik Çubuğa Ait Kılavuzlanmış Modları ve Modların Adlandırılması;European Journal of Science and Technology;2022-01-02

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