Dual Frequency Millimeter-Wave Illumination of a Detector Diode

Abstract

In this letter, a GaAs beam lead diode is illuminated by two fixed W-band millimeter-wave frequencies to assess the difference frequency response at the X-band. Measured results are compared with an expected mixed frequency response, utilizing a Volterra series expansion solution, which considers the reactive component influences under nonconjugate matching conditions. A nonlinear model is assessed with the solution approach to predict potential performance. A nonconjugate matched condition provides good agreement with less than 2-dB variation across the central slice of the response.