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: 1996/05/20
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 (800.6KB)
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: 1993/09/20
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 (586.6KB)
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: 1993/01/20
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 (233KB)
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: 1992/10/20
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 (719.3KB)
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: 1992/06/20
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 (532.1KB)