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Nonlinear Modeling of Tunnel Diode Detectors



Dave K. Walker, Kevin Coakley, Jolene Splett


We investigate the sensitivity and nonlinear properties of a tunnel diode microwave detector as functions of the input power and the load impedance presented at the detector's output. We compare the two-tone method estimate of nonlinearity with precise voltage-power measurements. Regression spline modeling of the voltage-power relationship is used to predict the actual received power, and hence the brightness temperature, at the detector.


calibration, nonlinearity, microwave radiometer, radiometer, remote sensing.


Walker, D. , Coakley, K. and Splett, J. (2004), Nonlinear Modeling of Tunnel Diode Detectors, None (Accessed June 21, 2024)


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Created September 23, 2004, Updated October 12, 2021