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 :
