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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 44  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
AP, MW
(Joint)
2022-09-15
12:25
Ehime The Museum of Art, EHIME
(Primary: On-site, Secondary: Online)
Macromodeling and Verification of Quad-Parallel Bipolar Transistors in the 300 GHz Band
Minami Nasu (Tokyo University of science), Shinsuke Hara, Akifumi Kasamatsu (NICT), Yohtaro Umeda, Kyoya Takano (Tokyo University of science) MW2022-77
The objective of this study is to create a simple four-parallel bipolar transistor model for the 300 GHz band, and we pr... [more] MW2022-77
pp.48-51
MW 2022-03-04
10:30
Online Online Electromagnetic-wave-absorber design based on terahertz-band measurement results of dielectrics
Sangyeop Lee (TokyoTech), Masao Fujita, Masayuki Toyoda (Maxell Ltd.), Kyoya Takano (TUS), Shinsuke Hara, Issei Watanabe, Akifumi Kasamatsu (NICT), Hiroyuki Ito (TokyoTech) MW2021-132
 [more] MW2021-132
pp.117-121
ED, MW 2022-01-27
13:15
Online Online An Inductor-Less Broadband Active Balun with Imbalance Correction and Active Peaking
Keisuke Kawahara, Yohtaro Umeda, Kyoya Takano (TUS) ED2021-62 MW2021-104
This paper presents an area-efficient broadband active balun with low gain error and phase error. An ideal balun has a d... [more] ED2021-62 MW2021-104
pp.1-6
MW 2021-12-16
15:15
Kanagawa Kawasaki City Industrial Promotion Hall
(Primary: On-site, Secondary: Online)
Analysis and Design of a Differential Distributed Amplifier with Coupled Inductors
Keisuke Kawahara, Yohtaro Umeda, Kyoya Takano (TUS), Shinsuke Hara (NICT) MW2021-92
This paper presents a differential distributed amplifier with coupled inductors. Broadband and multi-level signaling are... [more] MW2021-92
pp.43-48
MW 2021-05-20
14:55
Online Online A Trial Manufacture of an Area-Efficient Distributed Amplifier Using Pseudo-Fractal Bended Transmission Lines
Keisuke Kawahara, Yohtaro Umeda, Kyoya Takano (TUS), Shinsuke Hara (NICT) MW2021-9
In recent years, communication traffic has been increasing. Distributed amplifiers have been reported to a bandwidth of ... [more] MW2021-9
pp.22-27
MW, ED 2021-01-29
14:50
Online Online A study on precise extraction of parasitic resistances in InGaAs HEMTs
Keigo Yaguchi (Tokyo Univ. of Science), Tomotaka Hosotani (Tohoku Univ.), Yohtaro Umeda, Kyoya Takano (Tokyo Univ. of Science), Tetsuya Suemitsu, Akira Satou (Tohoku Univ.) ED2020-35 MW2020-88
In this paper, we propose a new method to extract the parasitic resistances of high electron mobility transistor (HEMT) ... [more] ED2020-35 MW2020-88
pp.38-43
MW 2020-12-10
16:00
Kanagawa
(Primary: On-site, Secondary: Online)
Experimental evaluation of signal-to-quantization noise power ratio of transversal filter with power amplifier for EPWM transmitter
Ryuta Sato, Natuki Utigiri, Taishi Sawayama, Yusuke Koike, Yotaro Umeda, Kyoya Takano (TUS) MW2020-77
In recent years, envelope pulse width modulation has been devised for transmitters in wireless communications to meet ma... [more] MW2020-77
pp.36-41
MW
(2nd)
2020-05-13
- 2020-05-15
Overseas CU, Bangkok, Thailand
(Postponed)
Design of a 135GHz Marchand Balun in 40nm CMOS Technology
Hajime Sakai, Kyoya Takano, Yohtaro Umeda (Tokyo Univ. of Science)
The use of the D band (110-170 GHz) as the intermediate frequency band (IF band) of the 300 GHz band CMOS wireless commu... [more]
MW
(2nd)
2020-05-13
- 2020-05-15
Overseas CU, Bangkok, Thailand
(Postponed)
A 135GHz Frequency Tripler in 40 nm CMOS Technology
Koki Sekine, Kyoya Takano, Yohtaro Umeda (Tokyo Univ. of Science)
With the spread of IoT, high-speed and large-capacity wireless communication has been demanded. Therefore, the IEEE Std ... [more]
MW
(2nd)
2020-05-13
- 2020-05-15
Overseas CU, Bangkok, Thailand
(Postponed)
Design of 45GHz Frequency Trippler in 40nm CMOS Technology
Kenta Sahara, Kyoya Takano, Yohtaro Umeda (Tokyo Univ. of Science)
As a circuit constituting a wireless communication device, a frequency tripler plays an important role as a circuit for ... [more]
MW 2019-12-19
15:55
Gifu Gifu Unif. Satellite Campus [Special Talk] 300-GHz Wireless Data Transmission System with Low-SNR CMOS RF Front End
Sangyeop Lee, Ruibing Dong (Hiroshima Univ.), Shinsuke Hara (NICT), Kyoya Takano, Shuhei Amakawa, Takeshi Yoshida, Minoru Fujishima (Hiroshima Univ.) MW2019-126
A CMOS based 300 GHz wireless system typically has low signal to noise ratio character istics owing to a low transmitter... [more] MW2019-126
pp.41-46
MW 2019-11-15
11:00
Okinawa Minami Daido Villa. Tamokuteki Koryu Center Report on 2019 IEEE MTT-S International Microwave Symposium
Msaru Sato (Fujitsu Lab.), Takashi Shimizu (Utsunomiya Univ.), Yusuke Uemichi (Fujikura), Hiroyuki Aoyama (Mitsubishi Electoric), Tetsuya Ueda (KIT), Yuji Komatsuzaki (Mitsubishi Electoric), Hiroshi Hamada (NTT), Kyoya Takano (TUS), Hiroshi Okazaki (NTT DOCOMO) MW2019-114
This is a report on 2019 IEEE MTT-S International Symposium held at Boston, MA, USA, June 2-7, 2019. It contains an over... [more] MW2019-114
pp.81-86
MW, ED 2019-01-17
12:50
Tokyo Hitachi, Central Research Lab. [Special Talk] Briefing Report on European Microwave Week 2018
Hiroaki Ikeuchi (Toshiba), Chen Chun-Pin (Kanagawa Univ.), Yu Ushijima, Jun Kamioka (Mitsubishi Ele. Corp.), Kyoya Takano (Tokyo Univ. of Science), Kentaro Murata (Toshiba), Takashi Shimizu (Utsunomiya Univ.) ED2018-73 MW2018-140
 [more] ED2018-73 MW2018-140
pp.23-30
ICD, CPSY, CAS 2018-12-21
13:30
Okinawa   Power-amplifier-inserted Transversal Filter that Recovers Quantization Noise Power by CMOS Rectifier
Yuto Tanaka, Yohtaro Umeda, Kyoya Takano (Tokyo University of Science) CAS2018-78 ICD2018-62 CPSY2018-44
In this paper, we aim to improve power efficiency by using a CMOS rectifier for power-amplifier-inserted transversal fil... [more] CAS2018-78 ICD2018-62 CPSY2018-44
pp.1-5
MW, ICD 2017-03-02
10:25
Okayama Okayama Prefectural Univ. Performance Indicator for THz TRX module
Kyoya Takano, Shuhei Amakawa, Kosuke Katayama, Takeshi Yoshida, Minoru Fujishima (Hiroshima Univ.) MW2016-191 ICD2016-121
Ultra-high-speed wireless links are achievable by using terahertz frequencies which have vast frequency band for wireles... [more] MW2016-191 ICD2016-121
pp.19-22
MW, ICD 2017-03-02
10:50
Okayama Okayama Prefectural Univ. Systematic circuit model generation for high-frequency devices
Kosuke Katayama, Kyoya Takano, Shuhei Amakawa, Takeshi Yoshida, Minoru Fujishima (Hiroshima Univ.) MW2016-192 ICD2016-122
 [more] MW2016-192 ICD2016-122
pp.23-27
MW, ICD 2017-03-02
11:15
Okayama Okayama Prefectural Univ. Study on 300 GHz CMOS Doubler for Ultrahigh-Speed Wireless Communications
Tuan Anh Vu, Kyoya Takano, Kosuke Katayama, VSRao Sasipalli, Minoru Fujishima (Hiroshima University) MW2016-193 ICD2016-123
This paper presents a 300 GHz common-source (CS) based doubler suitable for ultrahigh-speed wireless communications. The... [more] MW2016-193 ICD2016-123
pp.29-34
MW, ICD 2017-03-03
09:50
Okayama Okayama Prefectural Univ. Design of CMOS On-Chip Antenna in 300-GHz Band
VSRao Sasipalli, Kosuke Katayama, Kyoya Takano, Shuhei Amakawa, Takeshi Yoshida, Minoru Fujishima, Tuan Anh VU (Hiroshima Univ.) MW2016-205 ICD2016-135
 [more] MW2016-205 ICD2016-135
pp.95-100
ED 2016-12-20
13:15
Miyagi RIEC, Tohoku Univ [Invited Talk] Input Power Optimization of a Tripler-Base 300-GHz CMOS Up-Conversion Mixer
Ruibing Dong (NICT), Kosuke Katayama (Hiroshima Univ.), Shinsuke Hara (NICT), Kyoya Takano (Hiroshima Univ.), Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu (NICT), Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima (Hiroshima Univ.) ED2016-93
A tripler-based 300-GHz-band up-conversion mixer in 40-nm CMOS is experimentally characterized, whose operating frequenc... [more] ED2016-93
pp.71-74
SR, SRW
(Joint)
2016-05-17
12:00
Overseas Hotel Lasaretti, Oulu, Finland [Invited Lecture] A QAM-Capable 300-GHz CMOS Transmitter
Shuhei Amakawa, Kosuke Katayama, Kyoya Takano (Hiroshima Univ.), Shinsuke Hara, Akifumi Kasamatsu (NICT), Koichi Mizuno, Kazuaki Takahashi (Panasonic), Takeshi Yoshida, Minoru Fujishima (Hiroshima Univ.) SR2016-12
A 300-GHz transmitter (TX) in 40-nm CMOS is presented. With the MOSFET unity-power-gain frequency $f_{mathrm{max}}$ bein... [more] SR2016-12
pp.39-46
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