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On modeling mutual coupling in antenna arrays using the coupling matrix
Author(s) -
Su Tao,
Ling Hao
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/1098-2760(20010220)28:4<231::aid-mop1004>3.0.co;2-p
Subject(s) - coupling (piping) , matrix (chemical analysis) , electronic engineering , physics , antenna (radio) , topology (electrical circuits) , computer science , engineering , telecommunications , electrical engineering , materials science , mechanical engineering , composite material
The coupling matrix is a standard way to represent the mutual‐coupling effect between elements in an antenna array. In this paper, two commonly used approaches to determine the coupling matrix are examined, and their limitations are discussed. The coupling matrix obtained from the minimum mean‐square error matching of the active and stand‐alone element patterns is shown to be more effective than the mutual‐impedance approach. The coupling‐matrix model is also extended for more complex antenna arrays, and an example is provided to illustrate the effectiveness of the extended model. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 28: 231–237, 2001.