National Changhua University of Education Institutional Repository : Item 987654321/10991

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NCUEIR > College of Engineering > Department and Graduate Institute of Electronic Engineering > Periodical Articles > Item 987654321/10991

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10991

Title:	Design of frequency-agile microstrip antennas with conical-beam radiation
Authors:	Tsai, Jia-Fu;Row, Jeen-Sheen
Contributors:	電機工程學系
Keywords:	Microstrip antenna;Frequency agility;Conical radiation
Date:	2011-04
Issue Date:	2012-06-05T02:01:24Z
Publisher:	Wiley
Abstract:	A microstrip antenna with frequency agility is described in this article.The antenna has a circular radiating patch and operates at its TM01 mode to generate omnidirectional radiation across the azimuthal plane. To change the resonant frequency, a capacitor is introduced and connected to the antenna input port in series. With the increasing of capacitance, the resonant frequency is decreased while the resonant resistance and radiation characteristic nearly remain constant. Experimental results indicate that the design can provide a frequency tunable range of 22%; moreover, good impedance matching and stable radiation pattern are also obtained in the range.
Relation:	Microwave and Optical Technology Letters, 53(4): 783-785
Appears in Collections:	[Department and Graduate Institute of Electronic Engineering] Periodical Articles

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