Experimental study of the frequency limits of a resonant tunneling oscillator

Coleman, Paul D.; Goedeke, Steven; Shewchuk, Thomas J.; Chapin, Peter C.; Gering, Joseph M.; Morkoç, Hadis
February 1986
Applied Physics Letters;2/10/1986, Vol. 48 Issue 6, p422
Academic Journal
An equivalent circuit obtained from microwave impedance and power data is proposed for a resonant tunneling diode. The four-element circuit consists of a series R and C in parallel with a nonlinear negative differential conductance -G, the combination in turn in series with a resistor r. The resistive cut-off frequency predicted by this model depends on both the RC and RG products. Detection at THz frequencies is also explained by the model.


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