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IEEE Transactions on Antennas and Propagation
Volume 47 Number 1, January 1999

Table of Contents for this issue

Complete paper in PDF format

Mode-Matching Analysis of Top-Hat Monopole Antennas Loaded with Radially Layered Dielectric

Laura A. Francavilla, James S. McLean, Heinrich D. Foltz, and Gentry E. Crook, Member, IEEE

Page 179.

Abstract:

A top-hat monopole antenna with homogeneous or inhomogeneous dielectric loading over a ground plane is considered. Mode-matching analysis with proper enforcement of edge conditions is applied to the problem. The results of this technique are verified through independent calculations of admittance as well as by comparison of fields across matching regions. Measurements were also taken for comparison with the results from the model. It is shown that dielectric loading can reduce the electrical size necessary for self resonance, but only at the expense of a large increase in radiation { {Q}}.

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