Title :
Active coplanar up-converter for high gain V-band applications
Author :
Kulke, R. ; Sporkmann, T. ; Wolff, I. ; Rosario, M.J. ; Fortes, F.
Author_Institution :
Inst. of Mobile & Satellite Commun. Tech., Kamp-Lintfort, Germany
Abstract :
This paper reports on the design of a coplanar up-converter from C- to V-band on GaAs. An optimum conversion gain (62-64 GHz: G/sub c/>4 dB) has been achieved from a nonlinear optimisation, utilising a modified Tajima model for the PM-HFETs and an accurate library for the coplanar elements integrated into the CAD tool Libra. Due to the use of coplanar lumped elements, a very compact circuit size of 2.1 mm/sup 2/ has been obtained. The evaluation of the circuit demonstrates the excellent agreement of the linear and nonlinear measured and simulated mixer behaviour up to 64 GHz.
Keywords :
MMIC frequency convertors; MMIC mixers; circuit optimisation; coplanar waveguides; field effect MIMIC; gallium arsenide; millimetre wave frequency convertors; millimetre wave mixers; 4 dB; 62 to 64 GHz; C-band/V-band conversion; CAD tool; EHF; GaAs; Libra; MM-wave applications; PM-HFETs; active coplanar up-converter; compact circuit size; coplanar lumped elements; high gain V-band applications; modified Tajima model; nonlinear optimisation; pseudomorphic HFET; Circuit simulation; Coplanar waveguides; Design automation; Gallium arsenide; HEMTs; Integrated circuit measurements; Libraries; Microstrip; Satellite communication; Telecommunications;
Conference_Titel :
Microwave Symposium Digest, 1996., IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3246-6
DOI :
10.1109/MWSYM.1996.508509
