An Optimal Design of Multiple Antenna Positions on Mobile Devices Based on Mutual Coupling Analysis
The topic of practical implementation of multiple antenna systems for mobile communications has recently gained a lot of attention. Due to the area constraint on a mobile device, the problem of how to design such a system in order to achieve the best benefit is still a huge challenge. In this paper, Genetic Algorithm (GA) is used to find the optimal antenna positions on a mobile device. Two cases of 3 ? 3 and 4 ? 4 MIMO systems are undertaken. The effect of mutual coupling based on Z-parameter is the main factor to determine the MIMO capacity concerning the objective function of GA search. The results confirm the success of the proposed method to design MIMO antenna positions on a mobile device.