Approximation-free Mutual Coupling Evaluation Approach for MIMO Antennas
13 January 2017
This letter proposes an approach for the evaluation of mutual coupling effect on MIMO antennas without referring to the canonical minimum scattering (CMS) antenna approximation. The proposed approach is also able to separate the influence of the contributing effects to the overall impact of mutual coupling. Full-wave simulations are used to evaluate the mutual coupling effect of two parallel half-wavelength dipoles with variable separation under different propagation channels. Finally, the results are compared with numerical results obtained with the CMS antenna approximation showing the limitations of the latter approach.
