Design and Study of a Miniaturized Millimeter Wave Array Antenna for Wireless Body Area Network

Table 3

Array comparison.

	Single element	1 × 2 array	1 × 4 array	2 × 2 array
Bandwidth	17.8 GHz	15 GHz	16.081 GHz	>27.43 GHz
Gain (dB)	4.01	5.01	5.37	6.65
Radiation efficiency	99.98%	66.16%	66.84%	80.39%
Total efficiency	99.62%	65.22%	65.50%	77.90%
VSWR	1.1283	1.2702	1.3295	1.4273