Open AccessMutual coupling compensation for antenna arrays using the theory of characteristic modes
Author(s) -
Lou Shunxi,
Wang Wei
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2019.1862
Subject(s) - coupling (piping) , antenna (radio) , compensation (psychology) , physics , electronic engineering , antenna array , control theory (sociology) , topology (electrical circuits) , computer science , acoustics , telecommunications , engineering , electrical engineering , artificial intelligence , mechanical engineering , psychology , control (management) , psychoanalysis
The mutual coupling effect is one of the most important factors that cannot be neglected in the analysis and synthesis of antenna arrays. In this Letter, a compensation method for the mutual coupling effect is proposed using the theory of characteristic modes, in which the mutual coupling effect is characterised from the perspective of modal coupling between different radiating elements. A compensation matrix is constructed, which makes the modal excitation coefficients of each radiating element in an array environment equal to those obtained without considering the mutual coupling effect. Numerical results demonstrate the effectiveness of the proposed method.