38/76 GHz GaAs PHEMT Frequency Doublers in CPW Technology

Author

Roca, Y.Campos ; Marsetz, W. ; Barciela, M. Fernández ; Verweyen, L. ; Neumann, M. ; Demmler, M. ; Massler, H. ; Haydl, W.H. ; Francos, M. C Currás ; Sànchez, E. ; Hülsmann, A. ; Schlechtweg, M.

Author_Institution

Universidade de Vigo, E.T.S.I.TelecomunicaciÃ³n, Campus Universitario, 36200, Vigo, Spain. Phone: +34 986 - 81 3756 Fax: +34 986 - 81 2116 E-mail: yolanda@tsc.uvigo.es

Volume

1

fYear

1998

fDate

Oct. 1998

Firstpage

202

Lastpage

205

Abstract

This paper presents the design and performance of a single-ended and a balanced MMIC frequency doublers from 38 to 76 GHz, realized in CPW technology using 0.15-Â¿m PM-HEMTs on GaAs. These circuits have demonstrated an output power of nearly 10 dBm for a 16-dBm 38-GHz input signal. Their compact size and good power performance makes them attractive candidates for application in FMCW collision-avoidance radar systems, eliminating the need for W-band amplifier stages. A table-based large-signal HEMT model has been used successfully for the design of both circuits, resulting in very good agreement between predicted and measured power performance.

Keywords

Circuits; Coplanar waveguides; Frequency; Gallium arsenide; HEMTs; MMICs; PHEMTs; Power amplifiers; Power generation; Radar applications;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1998. 28th European

Conference_Location

Amsterdam, Netherlands

Type

conf

DOI

10.1109/EUMA.1998.337986

Filename

4139073