Title :
A miniature low current GaAs MMIC downconverter for Ku-band broadcast satellite applications
Author :
Sakuno, K. ; Yoshimasu, T. ; Matsumoto, N. ; Tsukao, T. ; Nakagawa, Y. ; Suematsu, E. ; Tomita, T.
Author_Institution :
Sharp Corp., Nara, Japan
Abstract :
A miniature low-current GaAs monolithic microwave integrated circuit (MMIC) downconverter with a novel image rejection filter was developed for commercial Ku-band broadcast satellite receivers. The low-noise RF amplifier, image rejection filter mixer, and intermediate-frequency amplifier were integrated on this MMIC. This MMIC used 0.3- mu m-gate ion-implanted GaAs MESFETs. The individual circuit designs and performance are described. The current consumption of the MMIC downconverter was only 40 mA. The chip size of the MMIC downconverter with the image rejection filter was 1.7 mm*2.05 mm.<>
Keywords :
III-V semiconductors; MMIC; direct broadcasting by satellite; field effect integrated circuits; frequency convertors; gallium arsenide; intermediate-frequency amplifiers; microwave amplifiers; mixers (circuits); 1 to 1.5 GHz; 11.7 to 12.2 GHz; 36 dB; 40 mA; GaAs; GaAs MESFETs; Ku-band broadcast satellite receivers; chip size; circuit designs; conversion gain; current consumption; image rejection filter; image rejection filter mixer; intermediate-frequency amplifier; low-noise RF amplifier; miniature low current GaAs MMIC downconverter; Circuit synthesis; Gallium arsenide; Low-noise amplifiers; MESFETs; MMICs; Microwave filters; Microwave integrated circuits; Monolithic integrated circuits; Radiofrequency amplifiers; Satellite broadcasting;
Conference_Titel :
Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1992. Digest of Papers, IEEE 1992
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0677-5
DOI :
10.1109/MCS.1992.186009
