Title :
A miniaturized, broadband MMIC mixer
Author :
Takenaka, T. ; Hara, S. ; Tokumitsu, T.
Author_Institution :
ATR Opt. & Radio Commun. Res. Lab., Kyoto, Japan
Abstract :
A modular design approach for miniaturized, GaAs broadband MMIC (monolithic microwave integrated circuit) mixers is described. Integrating an FET-sized power combiner module (power combiner LUFET) and a miniaturized, broadband amplifier module allowed a 3-10-GHz mixer to be designed and fabricated in a 0.9-mm*1.4-mm MMIC chip. The conversion loss is between 2 dB and 7 dB; isolation between LO and RF ports is better than 15 dB. A variation of this mixer which has an LO-to-IF leak-suppression ratio that is better than 30 dB is also presented.<>
Keywords :
III-V semiconductors; MMIC; field effect integrated circuits; gallium arsenide; microwave amplifiers; mixers (circuits); wideband amplifiers; 0.9 to 1.4 mm; 15 dB; 2 to 7 dB; 3 to 10 GHz; 30 dB; FET-sized power combiner module; GaAs; LO-to-IF leak-suppression ratio; MMIC chip; SHF; broadband MMIC mixer; broadband amplifier module; conversion loss; isolation; miniaturized; modular design approach; monolithic microwave integrated circuit; power combiner LUFET; semiconductors; Broadband amplifiers; Equivalent circuits; FETs; Gallium arsenide; Impedance matching; MMICs; Power amplifiers; Power combiners; Radio frequency; Radiofrequency amplifiers;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1989. Technical Digest 1989., 11th Annual
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/GAAS.1989.69324
