DocumentCode
1008908
Title
On the radiation pattern of a multibeam antenna
Author
Luh, Howard H S
Author_Institution
Aeronutronic-Ford Corp., Palo Alto, CA, USA
Volume
24
Issue
1
fYear
1976
fDate
1/1/1976 12:00:00 AM
Firstpage
101
Lastpage
102
Abstract
The optimum radiation of a lens antenna with an array feed of 
elements is desired, which will exhibit maximum gain in a number ( 
) of specified directions and nulls in other ( 
) specified directions. This optimum is not derived; however, a condition for the optimum is shown to be some superposition of just ( 
) individual radiation patterns where each individual pattern is obtained by a separate excitation set of all feed elements such that the gain is maximized in each of the ( ) directions. (The feed array excitation set for each of the ( ) maximum gain individual patterns is derived.) Thus the number of unknown feed excitation coefficients is reduced from to ( ).
elements is desired, which will exhibit maximum gain in a number ( ) of specified directions and nulls in other ( ) specified directions. This optimum is not derived; however, a condition for the optimum is shown to be some superposition of just ( ) individual radiation patterns where each individual pattern is obtained by a separate excitation set of all feed elements such that the gain is maximized in each of the ( ) directions. (The feed array excitation set for each of the ( ) maximum gain individual patterns is derived.) Thus the number of unknown feed excitation coefficients is reduced from to ( ).Keywords
Lens antennas; Multibeam antennas; Satellite antennas; Antenna radiation patterns; Antennas and propagation; Electrostatic precipitators; Equations; Feeds; Jamming; Pattern analysis; Signal analysis; Space stations; Vectors;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1976.1141291
Filename
1141291
Link To Document