Time-varying Volterra-series analysis of spectral regrowth and noise power ratio in FET mixers

Author

García, J. Angel ; De la Fuente, M.L. ; Pedro, J. Carlos ; Carvalho, N.B. ; Newport, Y. ; Mediavilla, A. ; Tazón, A.

Author_Institution

TTI Norte, Santander, Spain

Volume

49

Issue

3

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

545

Lastpage

549

Abstract

This paper presents a direct and robust analysis technique for evaluating nonlinear distortion phenomena in FET mixers excited by multitone signals. Time-varying Volterra-series analysis has previously been proven to be appropriate for small-signal intermodulation-distortion calculations in mixers excited by simple RF signals. Spectral convolutions of the suitably mapped control voltages are introduced in this paper in order to solve the nonlinear current source calculations for narrow-band modulated or broad-band multicarrier RF signals. Simulations and measurements of a properly characterized resistive mixer validate the accuracy of this direct and noniterative analysis tool for spectral regrowth and noise-power-ratio prediction in such applications

Keywords

MESFET circuits; Volterra series; intermodulation distortion; microwave circuits; microwave mixers; time-varying networks; FET mixers; multicarrier RF signals; multitone signals; noise power ratio; noise-power-ratio prediction; noniterative analysis tool; nonlinear current source calculations; nonlinear distortion phenomena; resistive mixer; robust analysis technique; small-signal intermodulation-distortion calculations; spectral regrowth; time-varying Volterra-series analysis; Analytical models; Convolution; FETs; Narrowband; Nonlinear distortion; Predictive models; Robustness; Signal analysis; Spectral analysis; Voltage control;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.910560

Filename

910560