DocumentCode :
1627399
Title :
Analysis of finite microstrip structures using an efficient implementation of the integral equation technique
Author :
Quesada Pereira, F. ; Alvarez Melcon, A.
Author_Institution :
Tech. Univ. of Cartagena, Spain
Volume :
3
fYear :
2003
Firstpage :
1983
Abstract :
An efficient numerical implementation of the integral equation technique (IE) has been developed for the analysis of the electrical characteristics of finite microstrip structures. The technique formulates a volume version of the IE for the finite dielectric objects. The numerical implementation combines rooftop basis and testing functions for the conducting metallic areas, and two different choices for the dielectric objects. The first is based on a classical approach, combining pulse basis functions and deltas for testing. The second is a novel full Galerkin approach which employs rooftop functions defined on brick cells inside the dielectrics. The input impedances of two microstrip antennas have been computed with the new technique, showing good agreement with respect measurements. Also the radiation patterns of the antennas have been evaluated, showing again good agreement with respect to measurements. The practical value of the approach is that microstrip circuits can be designed minimizing the volume and size of the dielectric substrates. In addition, it is possible to accurately predict the backward radiation of practical microstrip radiators.
Keywords :
Galerkin method; antenna radiation patterns; integral equations; microstrip antennas; microstrip circuits; Galerkin methods; IE techniques; antenna radiation patterns; conducting metallic area testing functions; delta functions; dielectric brick cell rooftop functions; dielectric substrate volume size reduction; finite dielectric objects; finite microstrip structure analysis; microstrip patch antennas; microstrip radiator backward radiation prediction; pulse basis functions; rooftop basis functions; volume equivalent integral equation techniques; Antenna measurements; Antenna radiation patterns; Circuits; Dielectric measurements; Dielectric substrates; Electric variables; Impedance measurement; Integral equations; Microstrip antennas; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
ISSN :
0149-645X
Print_ISBN :
0-7803-7695-1
Type :
conf
DOI :
10.1109/MWSYM.2003.1210548
Filename :
1210548
Link To Document :
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