Determination of Schottky diode sampling mixer frequency response from diode conductance waveforms

Author

Raleigh, G.G. ; Bellantoni, J.V.

Author_Institution

Watkins-Johnson Co., Palo Alto, CA

Volume

41

Issue

4

fYear

1993

fDate

4/1/1993 12:00:00 AM

Firstpage

723

Lastpage

726

Abstract

Conversion loss variations at microwave frequencies for Schottky diode harmonic sampling mixers are predicted from a time and frequency domain analysis of diode conductance waveforms. A circuit model for the mixer is used to find a nonlinear integral-differential equation governing the sampling mixer´s time domain behavior. An iterative solution is used to determine the diode conductance waveform, the Fourier transform of which is the frequency response of the sampler. Experimental verification is given for three different values of sampling capacitors and two different sampling chamber delays over a 2-40 GHz range

Keywords

Schottky-barrier diodes; equivalent circuits; frequency response; frequency-domain analysis; integro-differential equations; losses; mixers (circuits); nonlinear network analysis; solid-state microwave circuits; time-domain analysis; 2 to 40 GHz; Fourier transform; Schottky diode; circuit model; conversion loss variations; diode conductance waveforms; frequency domain analysis; frequency response; harmonic sampling mixers; iterative solution; microwave frequencies; nonlinear integral-differential equation; sampling capacitors; sampling chamber delays; time domain behavior; Circuits; Fourier transforms; Frequency domain analysis; Frequency response; Integral equations; Microwave frequencies; Mixers; Nonlinear equations; Sampling methods; Schottky diodes;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.231672

Filename

231672