Title :
A monolithic W-band CPW rat-race mixer with HBT IF amplifier
Author :
Matsuura, H. ; Tezuka, K. ; Aoki, I. ; Miura, A. ; Yamanaka, M. ; Yakihara, T. ; Kobayashi, S. ; Oka, S. ; Fujita, T. ; Murata, D.
Author_Institution :
R&D Dept. I, Teratec Corp., Tokyo, Japan
Abstract :
This paper reports on a fully monolithic W-band Schottky diode downconverter with an IF amplifier using heterojunction bipolar transistors (HBTs). We use a coplanar waveguide (CPW) as a transmission line element for a rat-race, because a CPW requires one-side wafer processing only. The conversion gain is +9.5 dB with the HBT amplifier and -8.8 dB without the HBT amplifier at an RF of 95 GHz. The isolation from the LO port to the RF port is 29 dB with the HBT amplifier and 27 dB without the HBT amplifier.
Keywords :
MMIC frequency convertors; MMIC mixers; Schottky diode mixers; bipolar MIMIC; coplanar waveguides; intermediate-frequency amplifiers; millimetre wave frequency convertors; millimetre wave mixers; millimetre wave receivers; waveguide components; 9.5 dB; 95 GHz; CPW rat-race mixer; EHF; GaAs; HBT IF amplifier; MM-wave mixer; Schottky diode downconverter; coplanar waveguide; heterojunction bipolar transistors; monolithic W-band mixer; transmission line element; Circuits; Coplanar waveguides; Cutoff frequency; Gallium arsenide; Heterojunction bipolar transistors; RF signals; Radio frequency; Radiofrequency amplifiers; Resistors; Schottky diodes;
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.1996.508537
