An Optimal Design of Multiple Antenna Positions on Mobile Devices Based on Mutual Coupling Analysis

Table 3

Antenna positions of 4×4 MIMO system obtained by GA in various channel conditions, for monopole antennas.

Channel condition	Positions of antennas, coordinate (x,y): mm
	Antenna (1)	Antenna (2)	Antenna (3)	Antenna (4)
(i) 360-360	11.9, 14.1	59.9, 1.8	16.5, 97.1	46.8, 105.0
(ii) 360-60	16.5, 19.4	49.3, 12.5	19.9, 95.2	48.2, 97.8
(iii) 60-360	14.1, 16.7	52.5, 8.1	16.8, 99.4	44.2, 94.5
(iv) 60-60	16.4, 10.4	51.9, 12.4	15.6, 89.0	47.4, 87.6
Average	14.7, 15.1	53.4, 8.7	17.2, 95.2	46.7, 96.2