The S-probe-a new, cost-effective, 4-gamma method for evaluating multi-stage amplifier stability

Author

Wang, Kangping ; Jones, M. ; Nelson, S.

Author_Institution

Texas Instruments Inc., Dallas, TX, USA

fYear

1992

fDate

1-5 June 1992

Firstpage

829

Abstract

The authors describe a generalized, automated, noninvasive, 4-gamma technique for stability analysis of multistage active circuits. It operates directly in the circuit simulator environment and eliminates all off-line calculations. This technique can be extended to n-port networks and works equally well with circuit models or S-parameter descriptions. Most importantly, it can detect special cases of instability involving active terminations. These are often missed using conventional stability analysis approaches.<>

Keywords

S-parameters; circuit analysis computing; microwave amplifiers; multiport networks; stability; 4-gamma method; S-parameter descriptions; S-probe; active terminations; circuit models; circuit simulator environment; instability; multi-stage amplifier; multistage active circuits; n-port networks; stability analysis; Active circuits; Circuit stability; Impedance; Instruments; Microwave amplifiers; Microwave theory and techniques; Performance analysis; Reflection; Scattering parameters; Stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1992., IEEE MTT-S International

Conference_Location

Albuquerque, NM, USA

ISSN

0149-645X

Print_ISBN

0-7803-0611-2

Type

conf

DOI

10.1109/MWSYM.1992.188116

Filename

188116