60 GHz High Gain Planar Antenna Array for Millimeter-Wave Industrial Applications

In this paper, a high gain and compact antenna array is designed using a parallel feed network at 60 GHz license-free band. First, the design of a single microstrip patch element is improved to achieve a high realized gain of 9 dBi. Then, a 16-way parallel feed network is designed for the 16 element array. The peak realized array gain is 18.56 dBi at 62 GHz, with −10 dB impedance of 10% (57.9 to 64 GHz). The proposed antenna array is suitable for millimeter-wave industrial applications and works on various 60 GHz protocols such as wireless local area network (WLAN) IEEE 802.11ad/ay, wireless personal area network (WPAN) IEE 802.15.3c, Wireless HD and ECMA-387.