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Electromagnetic Surface-Wave Propagation along a Dielectric Cylinder of Elliptical Cross Section


Yeh, Cavour Wei-Hou (1962) Electromagnetic Surface-Wave Propagation along a Dielectric Cylinder of Elliptical Cross Section. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/A13E-BB49.


The problem of electromagnetic wave propagation along a dielectric cylinder of elliptical cross section is considered. Two infinite determinants representing the characteristic equations for the two types of hybrid waves (the _eHE_(mn) and the _oHE_(mn) waves) are derived. These waves degenerate to the well-known HE_(mn) wave of the circular dielectric rod as the eccentricity of the elliptical rod approaches zero. It is found that there exist two dominant waves which possess zero cutoff frequencies. The characteristic roots of these two dominant waves are computed for various values of eccentricity and relative dielectric constant. Also given are the attenuation characteristics and the field distribution of the dominant modes. It is shown that a flattened dielectric rod supporting the _eHE_(11) wave offers less loss than a circular rod having the same cross-sectional area and supporting the HE_(11) wave. Theoretical propagation characteristics (the guide wavelength, the field distribution and the attenuation constant) of the dominant waves are verified by experiments. The Q's of a dielectric rod cavity resonator supporting the dominant waves are also presented.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Electrical Engineering)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Electrical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Papas, Charles Herach
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1962
Record Number:CaltechTHESIS:08182011-142633204
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6597
Deposited On:18 Aug 2011 23:06
Last Modified:21 Dec 2023 22:34

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