Masatoshi NII

A Compact Wideband T/R Switching Circuit Utilizing Quadrature Couplers and Gate-and-Drain-Driven HPAs
Hiromitsu UCHIDA Masatoshi NII Norio TAKEUCHI Yoshihiro TSUKAHARA Moriyasu MIYAZAKI Yasushi ITOH 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/12/01
Vol. E85-C  No. 12  pp. 2022-2028
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Distortion,High-Power,High-Efficiency Active Device and Circuit Technology)
Category: 
Keyword: 
T/R switching, quadrature coupler, FET, biasing conditions, matching circuit, 
 Summary | Full Text:PDF(1.5MB)
A 4-12 GHz 2 W GaAs HFET Amplifier Using Pre-Matching Circuits for Dual Gate-Bias Feed and Tapered Power Splitting/Combining FETs
Hidenori YUKAWA Masatoshi NII Yoshihiro TSUKAHARA Yukio IKEDA Yasushi ITOH 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/12/01
Vol. E85-C  No. 12  pp. 2029-2035
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Distortion,High-Power,High-Efficiency Active Device and Circuit Technology)
Category: 
Keyword: 
microwave, amplifier, wideband, high power, GaAs, 
 Summary | Full Text:PDF(908.7KB)
MMIC/Super-MIC/MIC-Combined C- to Ku-Band 2 W Balanced Amplifier Multi-Chip Module
Yasushi ITOH Masatoshi NII Norio TAKEUCHI Yoshihiro TSUKAHARA Hidetoshi KUREBAYASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/06/25
Vol. E80-C  No. 6  pp. 757-762
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeterwave High-power Devices)
Category: 
Keyword: 
MMIC, MIC, amplifier, wideband, high power, 
 Summary | Full Text:PDF(575.7KB)
A Wideband Monolithic Lossy Match Power Amplifier Having an LPF/HPF-Combined Interstage Network
Mitsuru MOCHIZUKI Yasushi ITOH Masatoshi NII Tadashi TAKAGI Yasuo MITSUI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/09/25
Vol. E78-C  No. 9  pp. 1252-1254
Type of Manuscript:  Special Section LETTER (Special Issue on Ultra-High-Speed Electron Devices)
Category: 
Keyword: 
amplifier, power, wideband, monolithic, 
 Summary | Full Text:PDF(236.9KB)