A mixer computer-aided design tool based in the time domain

Author

Estabrook, P. ; Lusignan, B.B.

Author_Institution

Stanford Univ., CA, USA

fYear

1988

fDate

25-27 May 1988

Firstpage

1107

Abstract

A time-domain-based technique for computer-aided mixer analysis and design is presented. The design tool uses SPICE to arrive at the steady-state solution of the network equations in the mixer circuit. These nonsinusoidal waveforms are studied to understand the interaction of diode, circuit, and drive conditions. Graphically derived criteria are developed to optimize mixer performance. Circuit characteristics such as conversion loss, input and output impedances at small-signal frequencies are rapidly calculated by using a fast Hartley transform (FHT) to generate the Fourier transform of the required waveforms. This technique can be used to analyze mixers that can be described in terms of transmission lines, lumped components or any other element blocks available with SPICE.<>

Keywords

circuit CAD; mixers (circuits); solid-state microwave circuits; time-domain synthesis; FHT; Fourier transform; SPICE; computer-aided mixer analysis; conversion loss; drive conditions; fast Hartley transform; graphically derived criteria; interaction of diode; mixer circuit; mixer computer-aided design tool; mixer performance optimisation; network equations; nonsinusoidal waveforms; output impedances; small-signal frequencies; steady-state solution; time-domain-based technique; Circuits; Design automation; Diodes; Equations; Frequency conversion; Impedance; Mixers; SPICE; Steady-state; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1988., IEEE MTT-S International

Conference_Location

New York, NY, USA

Type

conf

DOI

10.1109/MWSYM.1988.22224

Filename

22224