Design of CMOS Terahertz Detector Array based on Surface Plasmon Resonance Antenna

In this paper, we designed a CMOS terahertz (THz) detector array based on surface plasmon resonance (SPR) antennas using a 55nm CMOS process technology. The 8*8 pixel array consists of SPR antennas, NMOS THz detectors, on-chip 45.96dB amplifier, and AD converter. We mainly studied the level of crosstalk between pixels at different antenna spacing. Besides, we designed artificial magnetic conductor (AMC) to reduce the level of the crosstalk. Simulation results show that the electrical crosstalk drops significantly by optimizing the antenna spacing and employing AMC structure.