DocumentCode :
3047202
Title :
Experimental investigation of broad-band microstrip antennas
Author :
Watkins, J. ; Uysal, S.
Author_Institution :
Dept. of Electr. & Electron. Eng., London Univ., UK
fYear :
1990
fDate :
7-10 May 1990
Firstpage :
496
Lastpage :
500
Abstract :
An experimental investigation of broadband microstrip antennas on a PTFE substrate with permittivity εr=2.1 and thickness h=1.6 mm is presented. A 17% bandwidth improvement is achieved by modifying the feed on the substrate with coaxial-fed disk antennas. Experiments carried out on circularly shaped modified patches showed a further bandwidth improvement of 80% over conventional microstrip patches. This method of bandwidth improvement is based on the fact that the impedance match is the limiting factor to the bandwidth for this class of antennas
Keywords :
microstrip antennas; PTFE substrate; bandwidth improvement; broadband microstrip antennas; circularly shaped modified patches; coaxial-fed disk antennas; impedance match; permittivity; thickness; Antenna feeds; Bandwidth; Broadband antennas; Coaxial components; Conductors; Frequency; Microstrip antennas; Patch antennas; Radar antennas; Surface impedance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radar Conference, 1990., Record of the IEEE 1990 International
Conference_Location :
Arlington, VA
Type :
conf
DOI :
10.1109/RADAR.1990.201095
Filename :
201095
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3047202
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