Design and simulation optimization of key components in 0.38 THz mixer

The terahertz mixer is a key component of the terahertz wave transmitting system, which could transform the frequency of signal from one value to another. The Schottky diode is the core part of the mixer. In addition to the Schottky diode, other units such as low pass filter and LO port, also play critical roles in the THz mixer. This article analyzes the key parts of the terahertz mixer, including the waveguide, Schottky diode and low pass filters by High Frequency Structure Simulator (HFSS). Through the analysis of simulation results, the terahertz mixer model of 0.38 THz is achieved.