Research On Terahertz High Gain Slot Waveguide Array Antenna

A 16×16 full-corporate-feed feed slot waveguide antenna array operating at 220GHz is designed. The simulation results show that the gain of the array is 32.7dBi and the side-lobe level is -13.4dB, which is lower than the ideal value of the side-lobe level of the array antenna and can meet the design requirements. The bandwidth of 2×2 subarray antenna is 4.5%. The impedance bandwidth of the 16×16 slot waveguide antenna array is similar to that of the cell array, which is also 4.5%.