A Fast Geometric Optics-Based Design Approach for Dielectric Rod Antennas

A simple and effective dielectric rod antenna design approach based on geometric optics and modal analysis is presented. The tapered antennas from microwave to terahertz can be readily designed with the equations presented in this paper. The radius of antenna is determined by the desired traveling w...

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Main Authors:	Jingping Liu, Safieddin Safavi-Naeini, Ying Wang, Aidin Taeb
Format:	Article
Language:	English
Published:	Hindawi Limited 2015-01-01
Series:	International Journal of Antennas and Propagation
Online Access:	http://dx.doi.org/10.1155/2015/141807

id	doaj-92315d4d51374449a7652f8dfd773991
record_format	Article
spelling	doaj-92315d4d51374449a7652f8dfd7739912020-11-24T23:47:14ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58691687-58772015-01-01201510.1155/2015/141807141807A Fast Geometric Optics-Based Design Approach for Dielectric Rod AntennasJingping Liu0Safieddin Safavi-Naeini1Ying Wang2Aidin Taeb3School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, ChinaElectrical and Computer Engineering Department, University of Waterloo, Waterloo, ON, N2L 3G1, CanadaDepartment of Electrical, Computer and Software Engineering, University of Ontario Institute of Technology, Oshawa, ON, L1H 7K4, CanadaElectrical and Computer Engineering Department, University of Waterloo, Waterloo, ON, N2L 3G1, CanadaA simple and effective dielectric rod antenna design approach based on geometric optics and modal analysis is presented. The tapered antennas from microwave to terahertz can be readily designed with the equations presented in this paper. The radius of antenna is determined by the desired traveling wave mode inside the antenna. The field inside the antenna consists of the fundamental mode and the second mode. For the end-fire operation, there is only the fundamental mode. The length of the antenna is designed based on geometric optics theory so that most of the traveling wave will be converted to the radiating field towards the output plane, avoiding reflection inside the antenna. Such antennas can achieve wide bandwidth. The gain increases with the length of the antenna as long as the diameters and length satisfy the conditions given in this paper. A number of antenna design examples with high gain and wide bandwidth are presented. The measurement results of a 130 GHz rectangular antenna with a length of 4λ show a bandwidth of 60 GHz and a gain of 12 dB.http://dx.doi.org/10.1155/2015/141807
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Jingping Liu Safieddin Safavi-Naeini Ying Wang Aidin Taeb
spellingShingle	Jingping Liu Safieddin Safavi-Naeini Ying Wang Aidin Taeb A Fast Geometric Optics-Based Design Approach for Dielectric Rod Antennas International Journal of Antennas and Propagation
author_facet	Jingping Liu Safieddin Safavi-Naeini Ying Wang Aidin Taeb
author_sort	Jingping Liu
title	A Fast Geometric Optics-Based Design Approach for Dielectric Rod Antennas
title_short	A Fast Geometric Optics-Based Design Approach for Dielectric Rod Antennas
title_full	A Fast Geometric Optics-Based Design Approach for Dielectric Rod Antennas
title_fullStr	A Fast Geometric Optics-Based Design Approach for Dielectric Rod Antennas
title_full_unstemmed	A Fast Geometric Optics-Based Design Approach for Dielectric Rod Antennas
title_sort	fast geometric optics-based design approach for dielectric rod antennas
publisher	Hindawi Limited
series	International Journal of Antennas and Propagation
issn	1687-5869 1687-5877
publishDate	2015-01-01
description	A simple and effective dielectric rod antenna design approach based on geometric optics and modal analysis is presented. The tapered antennas from microwave to terahertz can be readily designed with the equations presented in this paper. The radius of antenna is determined by the desired traveling wave mode inside the antenna. The field inside the antenna consists of the fundamental mode and the second mode. For the end-fire operation, there is only the fundamental mode. The length of the antenna is designed based on geometric optics theory so that most of the traveling wave will be converted to the radiating field towards the output plane, avoiding reflection inside the antenna. Such antennas can achieve wide bandwidth. The gain increases with the length of the antenna as long as the diameters and length satisfy the conditions given in this paper. A number of antenna design examples with high gain and wide bandwidth are presented. The measurement results of a 130 GHz rectangular antenna with a length of 4λ show a bandwidth of 60 GHz and a gain of 12 dB.
url	http://dx.doi.org/10.1155/2015/141807
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A Fast Geometric Optics-Based Design Approach for Dielectric Rod Antennas

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