DocumentCode
1250848
Title
Minimising mutual coupling in thick substrate microstrip antenna arrays
Author
Bamford, L.D. ; James, J.R. ; Fray, A.F.
Author_Institution
Defence Res. Agency, Great Malvern, UK
Volume
33
Issue
8
fYear
1997
fDate
4/10/1997 12:00:00 AM
Firstpage
648
Lastpage
650
Abstract
A new method based on the reaction concept, is used to assess the mutual coupling experienced by two adjacent circular microstrip antennas on a thick substrate. The coupling owing to surface waves is separated out from that due to the direct radiation and the large interference effects exhibited by the former create deep nulls in the overall mutual coupling characteristic: the nulls being dependent on the given choice of substrate geometry and element separation distance. Finally, the application of this coupling minimisation technique to practical arrays having many elements is briefly commented on
Keywords
antenna radiation patterns; antenna theory; interference (signal); microstrip antenna arrays; substrates; adjacent circular microstrip antennas; deep nulls; direct radiation; element separation distance; interference effects; mutual coupling; reaction; substrate geometry; surface waves; thick substrate; thick substrate microstrip antenna arrays;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19970448
Filename
590934
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