DocumentCode :
832418
Title :
Analysis of mutual coupling between a finite phased array of dipoles and its feed network
Author :
Lee, Kuan Min ; Chu, Ruey-Shi
Author_Institution :
Hughes Aircraft Co., Fullerton, CA, USA
Volume :
36
Issue :
12
fYear :
1988
Firstpage :
1681
Lastpage :
1699
Abstract :
The mutual coupling effects between a finite phased array of dipoles and its feed network are analyzed. The feed network is typically a corporate feed consisting of split-tee power dividers cascading to form a certain power distribution over the aperture. A simple iterative approach is used to solve the interaction between elements and feed. The radiation of a finite dipole array are first found for a given voltage excitation. These radiation impedances are then used as loads for the feed network, and the n+1 port network problem is analyzed. Due to the interaction between the feed network and dipoles, the antenna parameters such as mismatch, antenna pattern, and gain are all affected. These effects can be determined from the analysis of the network representation. Numerical results for a typical phased array with a corporate feed show that the resultant VSWR of the feed pattern degradation is due to the mutual coupling effects.<>
Keywords :
antenna feeders; antenna phased arrays; antenna radiation patterns; dipole antennas; VSWR; antenna parameters; antenna pattern; corporate feed; feed network; finite dipole array; finite phased array; gain; iterative approach; mismatch; mutual coupling; n+1 port network problem; printed dipoles; radiation impedances; split-tee power dividers; Antenna feeds; Apertures; Dipole antennas; Impedance; Iterative methods; Mutual coupling; Phased arrays; Power distribution; Power dividers; Voltage;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/8.14390
Filename :
14390
Link To Document :
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