The Performnance of the CMA Adaptive Array Antenna with Mutual Coupling Consideration

概要

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A CMA (Constant Modulus Algorithm) adaptive array is an adaptive system suitable for mobile communication, where it can successfully suppress interference under multipath environments, The performance of CMA has been analyzed in various aspects. But the analysis of the adaptive array have been based on the assumption that the array elements are isotropic, The characteristics of the array element and the mutual coupling (MC) between the array elements have not yet taken into account. In this paper, the performance of the CMA adaptive linear array with four half-wavelength dipole antennas has been analyzed with the steepest descent method. Mutual coupling effects between the array elements have been taken into account by using the method of moments (MOM). It can be seen that the CMA adaptive array shows different performance when the mutual coupling is taken into account. Generally the speed of convergence is different, and in some cases the CMA adaptive array catches different waves with and without mutual coupling.
社団法人電子情報通信学会の論文
1995-09-05