Title :
A synthesis-oriented approach to design microwave multidevice amplifiers with a prefixed stability margin
Author :
Centurelli, Francesco ; Scotti, Giuseppe ; Tommasino, Pasquale ; Trifiletti, Alessandro
Author_Institution :
Dipartimento di Ingegneria Elettronica, Rome Univ., Italy
fDate :
3/1/2000 12:00:00 AM
Abstract :
A design methodology that allows forcing a prefixed stability margin on microwave and millimeter-wave multidevice amplifiers during the synthesis procedure performed by CAD tools is proposed. To the best of our knowledge, for the first time expressions equivalent to stability margins have been determined to guide CAD optimizers to design circuits stable under parameter variations. Stability margins discussed in this paper allow inclusion of stability requirements among yield specifications in a rigorous way. A case study of a 4-FET distributed amplifier design is presented where stability under parameter variations has been achieved by using the proposed methodology
Keywords :
MIMIC; MMIC amplifiers; circuit CAD; circuit optimisation; circuit stability; distributed amplifiers; integrated circuit design; microwave amplifiers; millimetre wave amplifiers; 4-FET distributed amplifier design; CAD optimizers; CAD tools; MM-wave multidevice amplifiers; design methodology; microwave multidevice amplifiers; parameter variations; prefixed stability margin; synthesis procedure; synthesis-oriented approach; yield specifications; Circuit stability; Circuit synthesis; Design automation; Design methodology; Design optimization; Distributed amplifiers; Microwave amplifiers; Microwave theory and techniques; Millimeter wave circuits; Millimeter wave technology;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
