Nobuaki IMAI


An Ultra-Broad-Band Bridge-Type MMIC Switch Operating up to Millimeter-Wave Bands
Nobuaki IMAI Akira MINAKAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/02/01
Vol. E86-A  No. 2  pp. 268-272
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
millimeter-waveswitchisolationbridge
 Summary | Full Text:PDF(1.4MB)

An All-Optical Base Station for MMW Micro-Cell Radio Using Microwave-Optical Mixing in LiNbO3 Modulators
Howard J. THOMAS Nobuaki IMAI Eiichi OGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/01/25
Vol. E80-C  No. 1  pp. 74-80
Type of Manuscript:  Special Section PAPER (Special Issue on Devices, Packaging Technology, and Subsystems for the Optical Access Network)
Category: 
Keyword: 
millimeter wavemicrowave-optical mixingMach-Zehnder external optical modulatormobile communications
 Summary | Full Text:PDF(553.7KB)

High-Speed Data Transmission Using Millimeter-Wave Fiber-Optic Links
Hiroshi KAWAMURA Nobuaki IMAI Eiichi OGAWA Hideyuki INOMATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/12/25
Vol. E79-B  No. 12  pp. 1784-1791
Type of Manuscript:  Special Section PAPER (Special Issue on Millimeter-wave Short-range Application Systems Technology)
Category: 
Keyword: 
millimeter-wavefiberhigh-speed100 Mbpsmicrocell
 Summary | Full Text:PDF(1MB)

An Optical Bi-phase Modulator for Millimeter Wave Subcarrier Systems
Howard J. THOMAS Nobuaki IMAI Eiichi OGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/01/25
Vol. E79-C  No. 1  pp. 32-39
Type of Manuscript:  Special Section PAPER (Special Issue on Optomicrowave Techniques and Their Applications)
Category: Optomicrowave Devices
Keyword: 
bi-phase modulatormillimeter wave subcarrier systemsoptical modulatorMach-Zehnder external optical modulator
 Summary | Full Text:PDF(597.8KB)

A Ku-Band Transversal Filter Using Directional Couplers Made of a Multilayer Ceramic
Toshiro HIRATSUKA Yutaka IDA Nobuaki IMAI Eiichi OGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/08/25
Vol. E78-C  No. 8  pp. 1134-1138
Type of Manuscript:  Special Section LETTER (Special Issue on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
transversal filterresonator filterdirectional couplermultilayer ceramic
 Summary | Full Text:PDF(300KB)

A 10 GHz MMIC Predistortion Linearizer Fabricated on a Single Chip
Nobuaki IMAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/12/25
Vol. E76-C  No. 12  pp. 1847-1850
Type of Manuscript:  LETTER
Category: Microwave and Millimeter Wave Technology
Keyword: 
microwave and millimeter wave technologysemiconductor materials and devices
 Summary | Full Text:PDF(339.2KB)

An Extremely Accurate Quadrature Modulator IC Using Phase Detection Method and Its Application to Multilevel QAM Systems
Nobuaki IMAI Hiroyuki KIKUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1992/06/25
Vol. E75-C  No. 6  pp. 674-682
Type of Manuscript:  Special Section PAPER (Special Issue on MMIC Technology)
Category: 
Keyword: 
quadrature modulatormultilevel QAMmodulation phase errorphase shiftersilicon bipolar
 Summary | Full Text:PDF(740.7KB)