0.38 THz混频器关键器件设计和仿真优化

Design and simulation optimization of key components in 0.38 THz mixer

太赫兹混频器是太赫兹波收发系统中的关键器件,是将信号频率从一个量值变换为另一个量值的电路器件,其中肖特基二极管是太赫兹混频器中的核心器件,除了肖特基二极管以外,低频滤波器、本振端口等也属于太赫兹混频器中的关键器件。对0.38THz混频器中的关键组件包括波导管、肖特基二极管、滤波器等在HFSS中进行了建模、仿真,最后通过对仿真结果的分析,实现了可以满足0.38THz太赫兹混频器的各个关键模块的模型,通过这些模型实现了混频器整体的优化。

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.