Bandwidth Enhancement Techniques
( Trends in Research on Microstrip Antennas )
Publication series ： Trends in Research on Microstrip Antennas
Author： Seyed Ali Razavi Parizi
Publisher： IntechOpen
Publication year： 2017
E-ISBN: INT6558070173
P-ISBN(Paperback): 9789535136019
P-ISBN(Hardback): 9789535136026
Subject： TN Radio Electronics, Telecommunications Technology
Keyword： Civil engineering, surveying & building
Language： ENG
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Bandwidth Enhancement Techniques
Description
In this chapter, a variety of procedures proposed in the literature to increase the impedance bandwidth of microstrip patch antennas are presented and discussed. Intrinsic techniques, proximity coupled and aperture-coupled patches, applying horizontally coupled patches to driven patch on a single layer and stacked patches are discussed. Beside the linear polarised solutions, some techniques for designing wideband circular polarised patch antennas are also presented. Furthermore, some other techniques proposed in the literature including log-periodic array of patches, E-shaped patch, L-shaped feeding, microstrip monopole slotted antenna, defected ground/patch technique and the latest works during the recent years are introduced and investigated. It is tried to make a comparison between different methods giving a typical bandwidth that can be obtained using each method, beside discussing about the benefits or limitations that each method has.
Chapter