A new design method for maximum gain formulation of a microwave amplifier subject to noise figure and input VSWR

Author

Gunes, M. ; Gunes, F.

Author_Institution

Jupiter Elektronik Ltd., Istanbul, Turkey

fYear

1991

fDate

10-14 July 1991

Firstpage

899

Abstract

Presents a graphic design method for low-noise, low-input-VSWR (voltage standing wave ratio) amplifiers, where all necessary design information is placed in the input impedance plane. As a consequence of the bilinear transformations involved, all parameters can be represented by circles whose center and radius are in the input impedance plane. For a given set of the noise figure and input VSWR the maximum achievable gain and corresponding terminations can be determined by inspection of the graph. Furthermore, not only do the analytic expressions make the calculations very fast but the results of changes in the noise figure, input VSWR, and gain can be viewed directly.<>

Keywords

electron device noise; microwave amplifiers; solid-state microwave circuits; bilinear transformations; input VSWR; input impedance plane; maximum achievable gain; maximum gain formulation; microwave amplifier; noise figure; Design engineering; Design methodology; Equations; Impedance; Jupiter; Microwave amplifiers; Microwave communication; Microwave theory and techniques; Noise figure; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1991., IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-87942-591-1

Type

conf

DOI

10.1109/MWSYM.1991.147153

Filename

147153