TELECOMMUNICATIONS AND RADIO ENGINEERING - 2009 Vol. 68,
No 1 		 

 

 

 

Comparative Research on the Adequacy of GO/PO-, FDTD-, and IE-Based Numerical Algorithms for Analyzing Compact Dielectric Lenses in MM and SubMM Integrated Antennas



A.V. Boriskin, and A.I. Nosich
A. Usikov Institute of Radio Physics and Electronics,
National Academy of Sciences of Ukraine
12, Academician Proskura St., Kharkiv 61085, Ukraine

G. Godi, A. Rolland, and R. Sauleau
Institute of Electronics and Telecommunication, University of Rennes
1, Campus de Beaulieu, bat 11D, 35042 Rennes Cedex, France

Abstract
The subject of the paper is estimation of the accuracy and applicability of the numerical algorithms based on the methods of the geometrical and physical optics (GO/PO), and the finite difference in time domain (FDTD) method for analyzing the electromagnetic properties of two-dimensional reduced-size hemielliptical lenses that are the key elements of the dielectric lens antennas in the mm and submm wave range applications. The reference solution has been derived by the Muller boundary integral equations (IE) that provide the controllable accuracy of the numerical solution to the problem of the electromagnetic wave diffraction by a dielectric cylinder of an arbitrary cross-section. The numerical results concern the field characteristics in the near- and far-field hemielliptical lenses made of rexolite, quartz and silicon, considering both E- and H-polarizations. A special attention has been paid to analyzing the resonance inside the lens.

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