Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/81239
Title: TE11-mode excitation of a circular aperture antenna covered by a layered dielectric hemi-spherical radome
Authors: Leong, M.S. 
Li, L.W. 
Kooi, P.S. 
Yeo, T.S. 
Ma, X.
Issue Date: Jun-1999
Source: Leong, M.S.,Li, L.W.,Kooi, P.S.,Yeo, T.S.,Ma, X. (1999-06). TE11-mode excitation of a circular aperture antenna covered by a layered dielectric hemi-spherical radome. International Journal of Applied Electromagnetics and Mechanics 10 (3) : 259-278. ScholarBank@NUS Repository.
Abstract: This paper presents a full-wave analysis of the antenna radiation due to an aperture in a ground plane generating a circular waveguide TE11 wave, which is covered by a dielectric hemi-spherical radome of multi-layered geometry. Huygen's equivalence principle and the image theory are utilized to simplify the problem. The dyadic Green's function technique is applied to analyze the electromagnetic fields due to the circular aperture antenna with TE11 field distribution. Following the conventional procedure, the magnetic dyadic Green's functions for radially three-layered and four-layered geometry are formulated to account for the full-wave contribution due to such an equivalent magnetic surface current. The coefficients of these dyadics are derived by duality substitution and reduction from the authors' earlier published work. The Fraunhofer electric fields are obtained using the far-zone approximation. In order to show the applicability of the analysis in this work and demonstrate the effects of the dielectric radome on the radiation patterns, computations of the power patterns, beamwidths, and total transmission losses are made and the results obtained here are compared with the existing results in the literature.
Source Title: International Journal of Applied Electromagnetics and Mechanics
URI: http://scholarbank.nus.edu.sg/handle/10635/81239
ISSN: 13835416
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

47
checked on Apr 20, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.