A novel cavity-backed slot antenna on InP

In this paper, a novel linear polarized cavity-backed antenna based on normal InP HBT technology is proposed and simulated. In this design, half-mode substrate integrated waveguide (HMSIW) technique is used to create a radiating aperture, which helps minify the InP substrate and reduce the cost. The proposed antenna is numerically investigated using HFSS. The simulated results show that the proposed antenna has an impedance bandwidth about 3 GHz at the center frequency of 60 GHz, in which the gain and radiation efficiency of the proposed cavity-backed antennas is beyond 3.8 dBi and 89%, respectively. Compared with the conventional on chip antenna based on CMOS technology, this novel antenna's gain and radiation efficiency has been largely increased.