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IEICE Trans

Fumitaka IIZUKA

Highly Efficient Doherty Linear Amplifier with Input Power Allocation Control for Portable Radio
Fumitaka IIZUKA Tsuyoshi OGINO Hiroshi SUZUKI Kazuhiko FUKAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/06/01
Vol. E87-C  No. 6  pp. 915-923
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
mobile communication, Doherty, highly efficient amplifier, linearization, 
 Summary | Full Text:PDF
A Power Amplifier Model Considering Drain Current Dependence upon Input Power for High Efficiency Transmitter Power Amplifiers in Mobile Communications
Fumitaka IIZUKA Tsuyoshi OGINO Hiroshi SUZUKI Kazuhiko FUKAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/05/01
Vol. E87-C  No. 5  pp. 762-771
Type of Manuscript:  Special Section PAPER (Special Section on Advances in Characterization and Measurement Technologies for Microwave and Millimeter-Wave Materials, Devices and Circuits)
Category: Active Devices and Circuits
Keyword: 
efficient power amplifiers, drain current dependence, auto-bias, PHEMT, mobile communications, 
 Summary | Full Text:PDF
Visible Light Emission from Nanocrystalline Silicon Embedded in CaF2 Layers on Si(111)
Masahiro WATANABE Fumitaka IIZUKA Masahiro ASADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/11/25
Vol. E79-C  No. 11  pp. 1562-1567
Type of Manuscript:  Special Section PAPER (Special Issue on Quantum Effect Devices and Their Fabrication Technologies)
Category: 
Keyword: 
nanocrystalline silicon, quantum size effect, visible light emission, semiconductor-insulator heterostructure, 
 Summary | Full Text:PDF