Atsushi FUKUDA


Compact Tunable Isolator with a Variable Capacitor
Takayuki FURUTA Atsushi FUKUDA Hiroshi OKAZAKI Shoichi NARAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/01/01
Vol. E96-C  No. 1  pp. 84-92
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
multi-bandtunableisolatorvaractor diode
 Summary | Full Text:PDF(2.7MB)

Low-Loss Matching Network Design for Band-Switchable Multi-Band Power Amplifier
Atsushi FUKUDA Takayuki FURUTA Hiroshi OKAZAKI Shoichi NARAHASHI Toshio NOJIMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/07/01
Vol. E95-C  No. 7  pp. 1172-1181
Type of Manuscript:  Special Section PAPER (Special Section on Recent Trends of Microwave Systems and Their Fundamental Technologies)
Category: 
Keyword: 
power amplifierreconfigurablematching networkmulti-bandswitch
 Summary | Full Text:PDF(3.2MB)

Highly Efficient Multi-Band Power Amplifier Employing Reconfigurable Matching and Biasing Networks
Atsushi FUKUDA Hiroshi OKAZAKI Shoichi NARAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/07/01
Vol. E93-C  No. 7  pp. 949-957
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
power amplifierreconfigurablematching networkbiasing networkmulti-bandswitchmicroelectro mechanical systems
 Summary | Full Text:PDF(2.1MB)

Novel Band-Reconfigurable High Efficiency Power Amplifier Employing RF-MEMS Switches
Atsushi FUKUDA Hiroshi OKAZAKI Tetsuo HIROTA Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/11/01
Vol. E88-C  No. 11  pp. 2141-2149
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
band-switchable matching networkmicroelectro mechanical devicesmulti-bandswitchespower amplifiers
 Summary | Full Text:PDF(907.5KB)