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Comparison and Analysis of Two Microwave Equivalent-Circuit Models for Resonant Tunneling Diode

Keywords: resonant tunneling diode,microwave equivalent-circuit,quantum well injection transit,resistive frequency

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The distinction between two microwave equivalent-circuit models,quasi Esaki tunneling model (QETM) and quantum well injection transit model (QWITM),for the resonant tunneling diode (RTD) is discussed in details,and two groups of circuit parameters are extracted from experiment data by the least square fit method.Both theory analysis and the comparison of fit results demonstrate that QWITM is much more precise than QETM.In addition,the rationality of QWITM circuit's parameters confirms it too.On this basis,the resistive frequency is calculated,whose influence factors and improvement method are simply discussed as well.


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