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首先对THz波源的共振隧穿二极管(RTD)设计中的关键问题,即从材料与结构出发,对如何提高RTD的截止频率和输出功率进行了分析研究,并利用Win Green软件,仿真设计出具有高振荡频率和输出功率的RTD。在此基础上,采用RTD的共振隧穿理论和缝隙天线的结构模型,利用PSpice仿真软件构建了包含RTD材料与结构参数以及缝隙天线结构参数在内的完整太赫兹振荡器(RTO)的等效电路模型。振荡频率约为1.02THz,输出功率约为88.2μW,本文工作为今后研究该类器件奠定了基础。
First of all, the key issue in the design of resonant tunneling diode (RTD) of THz wave source is to study how to improve the cut-off frequency and output power of RTD based on material and structure. By using Win Green software, High oscillation frequency and output power of the RTD. On the basis of this, using the resonance tunneling theory of RTD and the structure model of the slot antenna, the complete THz oscillator (RTO) including the RTD material and the structure parameters as well as the structure parameters of the slot antenna is constructed by using the PSpice simulation software Circuit model. Oscillation frequency of about 1.02THz, the output power of about 88.2μW, this work for the future study of this type of device has laid the foundation.