Hisayasu SATO


A Multiband LTE SAW-Less CMOS Transmitter with Source-Follower-Driven Passive Mixers, Envelope-Tracked RF-PGAs, and Marchand Baluns
Takao KIHARA Tomohiro SANO Masakazu MIZOKAMI Yoshikazu FURUTA Mitsuhiko HOKAZONO Takaya MARUYAMA Tetsuya HEIMA Hisayasu SATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/06/01
Vol. E96-C  No. 6  pp. 774-782
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
multibandLTESAW-lessCMOStransmitterquadrature modulatorsource followerenvelope-trackingprogrammable gain amplifierbalun
 Summary | Full Text:PDF(3.4MB)

A Wide Dynamic Range Variable Gain Amplifier with Enhanced IP1 dB and Temperature Compensation
Hisayasu SATO Takaya MARUYAMA Toshimasa MATSUOKA Kenji TANIGUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/08/01
Vol. E94-C  No. 8  pp. 1311-1319
Type of Manuscript:  PAPER
Category: Integrated Electronics
Keyword: 
VGA1 dB compression pointnoise figurewirelesstransceiverIIP3
 Summary | Full Text:PDF(1.1MB)

A Single-Chip 2.4-GHz RF Transceiver LSI with a Wide-Input-Range Frequency Discriminator
Hiroshi KOMURASAKI Hisayasu SATO Masayoshi ONO Ryoji HAYASHI Takeo EBANA Harunobu TAKEDA Kohji TAKAHASHI Yutaka HAYASHI Tetsuya IGA Kohichi HASEGAWA Takahiro MIKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/07/01
Vol. E85-C  No. 7  pp. 1419-1427
Type of Manuscript:  Special Section PAPER (Special Issue on Silicon RF Device & Integrated Circuit Technologies)
Category: 
Keyword: 
BiCMOSRFS bandfrequency discriminatortransceiver
 Summary | Full Text:PDF(1.2MB)

2.4-GHz-Band CMOS RF Front-End Building Blocks at a 1.8-V Supply
Hiroshi KOMURASAKI Kazuya YAMAMOTO Hideyuki WAKADA Tetsuya HEIMA Akihiko FURUKAWA Hisayasu SATO Takahiro MIKI Naoyuki KATO Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 300-308
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
CMOSlow voltageRFS bandfront end
 Summary | Full Text:PDF(1.4MB)

Design and Experimental Results of CMOS Low-Noise/Driver MMIC Amplifiers for Use in 2.4-GHz and 5.2-GHz Wireless Communications
Kazuya YAMAMOTO Tetsuya HEIMA Akihiko FURUKAWA Masayoshi ONO Yasushi HASHIZUME Hiroshi KOMURASAKI Hisayasu SATO Naoyuki KATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/02/01
Vol. E85-C  No. 2  pp. 400-407
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
Si-bulk CMOSMMIC2.4 GHz5.2-GHzlow-noise/driver amplifier
 Summary | Full Text:PDF(375.1KB)

A Sub 1-V L-Band Low Noise Amplifier in SOI CMOS
Hiroshi KOMURASAKI Hisayasu SATO Kazuya YAMAMOTO Kimio UEDA Shigenobu MAEDA Yasuo YAMAGUCHI Nagisa SASAKI Takahiro MIKI Yasutaka HORIBA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/02/25
Vol. E83-A  No. 2  pp. 220-227
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
SOI CMOSlow noise amplifierL bandlow voltageRF
 Summary | Full Text:PDF(1.7MB)

A Flip-Flop Circuit with a Directly Controlled Emitter-Follower and a Level Stabilizer for Low-Power Prescalers
Hisayasu SATO Nagisa SASAKI Takahiro MIKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/03/25
Vol. E82-C  No. 3  pp. 504-510
Type of Manuscript:  Special Section PAPER (Special Issue on Ultra-High-Speed IC and LSI Technology)
Category: Silicon Devices
Keyword: 
prescalerflip-flopemitter-followerlow power
 Summary | Full Text:PDF(432.8KB)

3.0 Gb/s, 272 mW, 8:1 Multiplexer and 4.1 Gb/s, 388 mW, 1:8 Demultiplexer
Kimio UEDA Nagisa SASAKI Hisayasu SATO Shunji KUBO Koichiro MASHIKO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/07/25
Vol. E78-C  No. 7  pp. 866-872
Type of Manuscript:  PAPER
Category: Integrated Electronics
Keyword: 
multiplexerdemultiplexersilicon-bipolarlow-powerECL
 Summary | Full Text:PDF(689.9KB)

A New Emitter-Follower Circuit for High-Speed and Low-Power ECL
Nagisa SASAKI Hisayasu SATO Kimio UEDA Koichiro MASHIKO Hiroshi SHIBATA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/04/25
Vol. E78-C  No. 4  pp. 374-380
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Voltage, Low-Power Integrated Circuits)
Category: Digital Circuits
Keyword: 
ECLemitter-follower circuitbipolarhigh-speed and low-power
 Summary | Full Text:PDF(545.3KB)