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基于共振隧穿机制的太赫兹波振荡器特性模拟

, PP. 102-106

Keywords: 太赫兹波源,RTD,振荡器,振荡特性

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Abstract:

共振隧穿器件由于其具有高频高速的特点,适用于制作太赫兹波段的振荡源器件。本文主要针对太赫兹波段的共振隧穿二极管(RTD)的振荡特性进行模拟仿真。利用等效电路理论和Pspice软件对共振隧穿振荡器(RTO)的等效电路模型进行振荡频率和功率的模拟计算。在理论计算中将隧穿和渡越时间效应以及寄生元件等制约因素都进行了分析,结果表明通过改进RTD和缝隙天线的结构,共振隧穿振荡器的振荡频率可达1.2THz,输出功率可达到115μW。并且在Pspice仿真环境下进行验证,结果也与理论计算较为相符。

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