Title :
Multifunctional frequency converter MMIC for 38GHz band 600Mbps multi-level QAM wireless system
Author :
Nagamine, Shinji ; Ozawa, Fumio ; Shirosaki, Toshifumi ; Taniguchi, Toru ; Okada, Kenichi
Author_Institution :
R&D Center, Japan Radio Co., Ltd., Tokyo, Japan
fDate :
Jan. 9 2009-Dec. 11 2009
Abstract :
The highly integrated up and down converter MMICs which uses the GaAs_HEMT process with three-dimensional MMIC technology is presented. These frequency converters consists of a balanced mixer, RF band amplifiers, an IF band amplifier, a step attenuator, an active band pass filter and a local quadrupler. A smaller surface mount package of 5 mm × 5 mm × 1.65 mm has also developed and the MMIC chips are mounted in it, respectively. The 38 GHz broadband wireless system as the ultra compact and very light weight has realized by useing these developed MMICs.
Keywords :
III-V semiconductors; MMIC frequency convertors; band-pass filters; broadband networks; gallium arsenide; high electron mobility transistors; intermediate-frequency amplifiers; millimetre wave frequency convertors; quadrature amplitude modulation; radiofrequency amplifiers; surface mount technology; GaAs HEMT process; IF band amplifier; RF band amplifiers; active band pass filter; balanced mixer; bit rate 600 Mbit/s; broadband communication; frequency 38 GHz; local quadrupler; multi-level QAM wireless system; multifunctional frequency converter MMIC chip; size 1.65 mm; size 5 mm; step attenuator; surface mount package; Attenuators; Band pass filters; Broadband amplifiers; Frequency conversion; MMICs; Mixers; Packaging; Quadrature amplitude modulation; Radio frequency; Radiofrequency amplifiers; Broadband communication; MMIC frequency converters; Millimeter wave radio communication; Surface mounting;
Conference_Titel :
Radio-Frequency Integration Technology, 2009. RFIT 2009. IEEE International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-5031-2
Electronic_ISBN :
978-1-4244-5032-9
DOI :
10.1109/RFIT.2009.5383693
