DocumentCode
1432691
Title
Active loop-dipole aerials
Author
Ramsdale, P.A. ; Maclean, T.S.M.
Author_Institution
Lanchester Polytechnic, Department of Electrical Engineering, Coventry, UK
Volume
118
Issue
12
fYear
1971
fDate
12/1/1971 12:00:00 AM
Firstpage
1698
Lastpage
1710
Abstract
A theoretical study of the input impedance of active loop-dipole aerials which possess height-reduction properties at resonance is made. This is compared with measurements on an aerial containing a BFY 90 transistor at 200 MHz for which the transistor parameters are available. Reasonable agreement is obtained. The existence of separate power gains and radiation patterns for transmitting and receiving is also established, and a comparison of the theoretical and experimental radiation patterns in the two cases is made. Numerical values of radiation resistance for these aerials are also calculated.
Keywords
active antennas; antenna radiation patterns; dipole antennas; electrical impedance; resistance (electric); 200 MHz; active antennas; antenna radiation patterns; dipole antennas; impedance; radiation resistance;
fLanguage
English
Journal_Title
Electrical Engineers, Proceedings of the Institution of
Publisher
iet
ISSN
0020-3270
Type
jour
DOI
10.1049/piee.1971.0313
Filename
5251521
Link To Document