Electromagnetic investigation on the propagation in distributed active devices

Author

Farina, M. ; Morini, A. ; Pierantoni, L. ; Rozzi, T.

Author_Institution

Dipt. di Elettronica e Autom., Ancona Univ., Italy

Volume

144

Issue

5

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

281

Lastpage

288

Abstract

An electromagnetic model for the study of the propagation mechanisms in distributed FET components, including conductor and dielectric losses, is proposed. The model also describes the effect of carrier-velocity saturation and finite carrier-transit time. Amplification is treated under the small-signal assumption. The method is applied to the characterisation of a GW-TWFET and a set of basic considerations and some design guidelines are provided which derive from an analysis of the energy constraints

Keywords

carrier mobility; dielectric losses; distributed parameter networks; electromagnetic fields; electromagnetic wave propagation; microwave amplifiers; microwave field effect transistors; semiconductor device models; travelling wave amplifiers; EM field based method; GW-TWFET; amplification; carrier-velocity saturation; conductor losses; design guidelines; dielectric losses; distributed FET components; distributed active devices; electromagnetic investigation; electromagnetic model; energy constraints; finite carrier-transit time; growing wave concept; propagation mechanisms; small-signal assumption;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:19971333

Filename

667499