Integrated mmWave 1x4 Half-Circle Monopole Antenna Array for Board-to-Board Communication

An integrated lx4 antenna array consisting of four planar half-circle monopole antennas for the frequency range from 165 GHz to 195 GHz has been designed. This antenna array is fabricated in the IHP SG13 semiconductor process. Besides the bandwidth of more than 30 GHz, a maximum realized gain of 5.2 dBi is achieved at 195 GHz. The overall chip size is 1. 26mm$\times$ 3.66 mm.