Nobuyuki HAYAMA

3-V Operation Power HBTs for Digital Cellular Phones
Chang-Woo KIM Nobuyuki HAYAMA Hideki TAKAHASHI Yosuke MIYOSHI Norio GOTO Kazuhiko HONJO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/05/25
Vol. E79-C  No. 5  pp. 617-622
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave Devices for Mobile Communications)
Category: Active Devices
Keyword: 
AlGaAs/GaAs, power HBTs, digital cellular phones, optimal thermal design, 
 Summary | Full Text:PDF(798.9KB)
Application of AlGaAs/GaAs HBT's to Power Devices for Digital Mobile Radio Communications
Norio GOTO Nobuyuki HAYAMA Hideki TAKAHASHI Kazuhiko HONJO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/09/25
Vol. E76-C  No. 9  pp. 1367-1372
Type of Manuscript:  Special Section PAPER (Special Issue on Heterostructure Electron Devices)
Category: 
Keyword: 
bipolar transistor, heterojunction, power amplifier, digital mobile communication, power efficiency, 
 Summary | Full Text:PDF(585.3KB)
A Precise Method for Determining AlGaAs/GaAs HBT Large-Signal Circuit Parameters Using Bias-Dependent Noise Parameters and Small-Signal S-Parameters
Jun-ichi SHIMIZU Nobuyuki HAYAMA Kazuhiko HONJO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/01/25
Vol. E76-C  No. 1  pp. 159-162
Type of Manuscript:  LETTER
Category: Electronic Circuits
Keyword: 
HBT, large-signal, S-parameter, noise parameters, small-signal, 
 Summary | Full Text:PDF(231.9KB)
A 1-K ECL Gate Array Implemented with Fully Self-Aligned AlGaAs/GaAs Heterojunction Bipolar Transistors
Nobuyuki HAYAMA Yuzuru TOMONOH Hideki TAKAHASHI Kazuhiko HONJO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1992/10/25
Vol. E75-C  No. 10  pp. 1121-1126
Type of Manuscript:  Special Section PAPER (Special Issue on Compound Semiconductor Integrated Circuits)
Category: 
Keyword: 
HBT, gate array, ring oscillator, propagation delay time, 
 Summary | Full Text:PDF(718.1KB)
Large-Signal Parameter Modeling for AlGaAs/GaAs HBT and Its Application to a Monolithic 22 GHz-Band Oscillator
Nobuyuki HAYAMA Jun-ichi SHIMIZU Kazuhiko HONJO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1992/06/25
Vol. E75-C  No. 6  pp. 683-688
Type of Manuscript:  Special Section PAPER (Special Issue on MMIC Technology)
Category: 
Keyword: 
HBT, oscillator, 1/f noise, phase noise, 
 Summary | Full Text:PDF(530.8KB)