Mutual Coupling in Phased Arrays : A Review

The mutual coupling between antenna elements affects the antenna parameters like terminal impedances, reflection coefficients and hence the antenna array performance in terms of radiation characteristics, output signal-to-interference noise ratio (SINR), and radar cross section (RCS). This coupling...

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Bibliographic Details
Published inInternational journal of antennas and propagation Vol. 2013; no. 2013; pp. 1 - 23
Main Authors Singh, Hema, Sneha, H. L., Jha, Rakesh Mohan
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Puplishing Corporation 01.01.2013
Hindawi Publishing Corporation
Hindawi Limited
Subjects
Antennas
Arrays
Genetic algorithms
Joining
Linear programming
Mathematical models
Methods
Mutual coupling
Optimization
Optimization techniques
Phased arrays
Steady state
Studies
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Summary:The mutual coupling between antenna elements affects the antenna parameters like terminal impedances, reflection coefficients and hence the antenna array performance in terms of radiation characteristics, output signal-to-interference noise ratio (SINR), and radar cross section (RCS). This coupling effect is also known to directly or indirectly influence the steady state and transient response, the resolution capability, interference rejection, and direction-of-arrival (DOA) estimation competence of the array. Researchers have proposed several techniques and designs for optimal performance of phased array in a given signal environment, counteracting the coupling effect. This paper presents a comprehensive review of the methods that model and mitigate the mutual coupling effect for different types of arrays. The parameters that get affected due to the presence of coupling thereby degrading the array performance are discussed. The techniques for optimization of the antenna characteristics in the presence of coupling are also included.
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ISSN:1687-5869
1687-5877
DOI:10.1155/2013/348123