Hiroki NAKAJIMA


High-Speed, Low-Power Lightwave Communication ICs Using InP/InGaAs Double-Heterojunction Bipolar Transistors
Eiichi SANO Kenji KURISHIMA Hiroki NAKAJIMA Shoji YAMAHATA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/11/25
Vol. E82-C  No. 11  pp. 2000-2006
Type of Manuscript:  Special Section PAPER (Special Issue on High-Frequency/High-Speed Devices for Information and Communication Systems in the 21st Century)
Category: Low Power-Consumption RF ICs
Keyword: 
InPHBTamplifierflip-flopPLL
 Summary | Full Text:PDF

Dual-Frequency Matching Technique and Its Application to an Octave-Band (30-60 GHz) MMIC Amplifier
Hiroki NAKAJIMA Masahiro MURAGUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/12/25
Vol. E80-C  No. 12  pp. 1614-1621
Type of Manuscript:  PAPER
Category: Microwave and Millimeter Wave Technology
Keyword: 
MMICamplifierbroad-bandimpedance matchingquarter-wavelength
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Growth, Design and Performance of InP-Based Heterostructure Bipolar Transistors
Kenji KURISHIMA Hiroki NAKAJIMA Shoji YAMAHATA Takashi KOBAYASHI Yutaka MATSUOKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/09/25
Vol. E78-C  No. 9  pp. 1171-1181
Type of Manuscript:  INVITED PAPER (Special Issue on Ultra-High-Speed Electron Devices)
Category: 
Keyword: 
HBTMOVPEZn diffusionabrupt emittergraded basehot electron injectionnonequilibrium transportcurrent blocking effectlateral down-scalingemitter size effect
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Lateral Scaling Investigation on DC and RF Performances of InP/InGaAs Heterojunction Bipolar Transistors
Hiroki NAKAJIMA Kenji KURISHIMA Shoji YAMAHATA Takashi KOBAYASHI Yutaka MATSUOKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/02/25
Vol. E78-C  No. 2  pp. 186-192
Type of Manuscript:  PAPER
Category: Semiconductor Materials and Devices
Keyword: 
InPInGaAsHBThigh-speedlow-power
 Summary | Full Text:PDF