Fast Analysis of Terahertz Integrated Lens Antennas Employing the Spectral Domain Ray Tracing Method

Author

Hailu, Daniel M. ; Ehtezazi, Iraj A. ; Safavi-Naeini, Safieddin

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Waterloo, Waterloo, ON

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

37

Lastpage

39

Abstract

We present a computationally efficient spectral ray tracing (SRT) method that requires one spectral domain integration step for each observation point. We compare the SRT method with the finite element method (FEM) and geometrical optics (GO) via simulation of terahertz Gaussian beam propagation through a hemispherical lens. The SRT was able to accurately solve the problem 30 times faster than FEM. The matrix formulation of SRT is promising for solving complex electrically large problems with high accuracy and 2 orders of magnitude reduction in computation time through parallel processing.

Keywords

antenna theory; computational electromagnetics; finite element analysis; laser beams; lens antennas; ray tracing; FEM; finite element method; geometrical optics; hemispherical lens; spectral domain integration; spectral ray tracing method; terahertz Gaussian beam propagation; terahertz integrated lens antennas; Antennas; electromagnetic radiation; finite element method (FEM); geometrical optics (GO); hemispherical lens; lens antennas; ray tracing; spectral ray tracing (SRT); terahertz radiation;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

Conference_Location

12/12/2008 12:00:00 AM

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2008.2010878

Filename

4711102