DocumentCode
773932
Title
Improving efficiencies of superdirective arrays of monopoles over lossy groundplanes by using superconducting disc overlays
Author
Cook, G.G. ; Khamas, S.K. ; Bowling, D.R.
Author_Institution
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
Volume
142
Issue
6
fYear
1995
fDate
12/1/1995 12:00:00 AM
Firstpage
462
Lastpage
466
Abstract
Electrically small perfectly conducting superdirective monopole arrays above lossy metal groundplanes are analysed at 500 MHz using a moment method incorporating Sommerfeld terms. It is shown that significant improvements in efficiency are obtained when small perfectly conducting discs, which can be realised using high-temperature superconductors, are attached to the monopole bases, compared with monopoles being directly connected to groundplanes
Keywords
antenna radiation patterns; directive antennas; high-temperature superconductors; integral equations; method of moments; monopole antenna arrays; 500 MHz; Sommerfeld terms; UHF; efficiency improvement; electrically small perfectly conducting arrays; high-temperature superconductors; lossy metal groundplanes; moment method; superconducting disc overlays; superdirective monopole antenna arrays;
fLanguage
English
Journal_Title
Microwaves, Antennas and Propagation, IEE Proceedings
Publisher
iet
ISSN
1350-2417
Type
jour
DOI
10.1049/ip-map:19952358
Filename
487864
Link To Document