New approach on the design of travelling wave amplifier

Author

Paoloni, Claudio ; Kosslowski, S.

Author_Institution

Dept. Electr. Eng., Roma Univ., Italy

fYear

1991

fDate

14-17 May 1991

Firstpage

414

Abstract

The approach to the design of traveling wave amplifiers (TWAs) presented makes use of specially selected FETs. This is due to the introduction of Chebyshev or Butterworth filter theory that requires different capacitances for the individual stages. The main advantage of this method is the reduction of the ripple in the gain and especially an improvement of the reflection coefficient of the amplifiers compared to conventional designs. The application of the filter approach has been demonstrated successfully for the assumption of a unilateral FET description as well as for a more accurate transistor model. For the examples presented, the Chebyshev approach has proved to be superior to the conventional TWA design

Keywords

MMIC; field effect integrated circuits; field effect transistor circuits; filtering and prediction theory; microwave amplifiers; semiconductor device models; wideband amplifiers; Butterworth filter theory; Chebyshev approach; Chebyshev filter theory; MMIC; TWA; capacitances; design approach; distributed amplifiers; gain ripple; reflection coefficient; selected FETs; transistor model; travelling wave amplifier; Capacitance; Chebyshev approximation; Distributed parameter circuits; FETs; Filtering theory; Frequency; Guidelines; Low pass filters; Reflection; Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1991., Proceedings of the 34th Midwest Symposium on

Conference_Location

Monterey, CA

Print_ISBN

0-7803-0620-1

Type

conf

DOI

10.1109/MWSCAS.1991.252185

Filename

252185