DocumentCode
9271
Title
Characteristics of a Circular Loop Antenna in the Presence of a Coaxial Conducting BOR Attached to a Planar Reflector
Author
Ali Hamed, Sameir M. ; Bashir, S.O.
Author_Institution
Department of Electrical and Electronics Engineering, Nile Valley University, Atbara, Sudan
Volume
12
fYear
2013
fDate
2013
Firstpage
793
Lastpage
796
Abstract
The performance of the circular loop antenna (CLA) largely improves in terms of impedance matching and directive gain when a body of revolution (BOR)-type of reflector is placed symmetrically relative to the loop. The input impedance, reflection coefficient, VSWR, directivity, and radiation patterns of a loop antenna for cases of a reflector-hemisphere and a reflector-cone are investigated in this letter. It is found that for a resonant loop, directivity over 9 dB and VSWR less than 2 over a bandwidth of 48.5 MHz can be obtained. The study also shows that the characteristics of the CLA depend mainly on the height of the loop over the reflector and the total surface area of the reflector-body irrespective of the body shape.
Keywords
Body of revolution; loop antenna; reflector; resonant loop;
fLanguage
English
Journal_Title
Antennas and Wireless Propagation Letters, IEEE
Publisher
ieee
ISSN
1536-1225
Type
jour
DOI
10.1109/LAWP.2013.2270949
Filename
6547229
Link To Document