Akifumi Kasamatsu

According to our database, Akifumi Kasamatsu authored at least 27 papers between 2005 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

A 640-Gb/s 4×4-MIMO D-Band CMOS Transceiver Chipset.

Chenxin Liu, Zheng Li, Yudai Yamazaki, Hans Herdian, Chun Wang, Anyi Tian, Jun Sakamaki, Han Nie, Xi Fu, Sena Kato, Wenqian Wang, Hongye Huang, Shinsuke Hara, Akifumi Kasamatsu, Hiroyuki Sakai, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

Proceedings of the IEEE Symposium on VLSI Technology and Circuits 2024, 2024

25.9-Gb/s 259-GHz Phased-Array CMOS Receiver Module with 28° Steering Range.

Shinsuke Hara, Mohamed H. Mubarak, Akifumi Kasamatsu, Yoshiki Sugimoto, Kunio Sakakibara, Kyoya Takano, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

Proceedings of the IEEE Radio and Wireless Symposium, 2024

2023

Evaluation of Transmission Characteristics of 120-GHz-Band Close-Proximity Wireless Links Using Split-Ring-Resonator Absorber Integrated Planar Slot Antenna.

Akihiko Hirata, Tubasa Saijo, Yuma Kawamoto, Tadao Nagatsuma, Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu

IEICE Trans. Electron., September, 2023

39 - 67 GHz CMOS Multistage Power Amplifier With Two-Way Power Stage.

Sho Okii, Shinsuke Hara, Akifumi Kasamatsu, Yohtaro Umeda, Kyoya Takano

Proceedings of the International Conference on IC Design and Technology, 2023

A 2D Beam-Steerable 252-285-GHz 25.8-Gbit/s CMOS Receiver Module.

Takeshi Yoshida, Shinsuke Hara, Tatsuo Hagino, Mohamed H. Mubarak, Akifumi Kasamatsu, Kyoya Takano, Yoshiki Sugimoto, Kunio Sakakibara, Shuhei Amakawa, Minoru Fujishima

Proceedings of the IEEE Asian Solid-State Circuits Conference, 2023

2022

A 76-Gbit/s 265-GHz CMOS Receiver With WR-3.4 Waveguide Interface.

Shinsuke Hara, Ruibing Dong, Sangyeop Lee, Kyoya Takano, Naoya Toshida, Akifumi Kasamatsu, Kunio Sakakibara, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

IEEE J. Solid State Circuits, 2022

2021

300-GHz-Band OFDM Video Transmission with CMOS TX/RX Modules and 40dBi Cassegrain Antenna toward 6G.

Yohei Morishita, Sangyeop Lee, Toshihiro Teraoka, Ruibing Dong, Yuichi Kashino, Hitoshi Asano, Shinsuke Hara, Kyoya Takano, Kosuke Katayama, Takenori Sakamoto, Naganori Shirakata, Koji Takinami, Kazuaki Takahashi, Akifumi Kasamatsu, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

IEICE Trans. Electron., 2021

Control of 120-GHz-Band Split Ring Resonator Filter by Coupling Lattice Pattern Substrate.

Koichiro Itakura, Akihiko Hirata, Masato Sonoda, Taiki Higashimoto, Tadao Nagatsuma, Takashi Tomura, Jiro Hirokawa, Norihiko Sekine, Issei Watanabe, Akifumi Kasamatsu

IEICE Trans. Electron., 2021

Transmission Characteristics Control of 120 GHz-Band Bandstop Filter by Coupling Alignment-Free Lattice Pattern.

Akihiko Hirata, Koichiro Itakura, Taiki Higashimoto, Yuta Uemura, Tadao Nagatsuma, Takashi Tomura, Jiro Hirokawa, Norihiko Sekine, Issei Watanabe, Akifumi Kasamatsu

IEICE Trans. Electron., 2021

A 76-Gbit/s 265-GHz CMOS Receiver.

Shinsuke Hara, Ruibing Dong, Sangyeop Lee, Kyoya Takano, Naoya Toshida, Satoru Tanoi, Tatsuo Hagino, Mohamed H. Mubarak, Norihiko Sekine, Issei Watanabe, Akifumi Kasamatsu, Kunio Sakakibara, Shunichi Kubo, Satoshi Miura, Yohtaro Umeda, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

Proceedings of the IEEE Asian Solid-State Circuits Conference, 2021

2019

An 80-Gb/s 300-GHz-Band Single-Chip CMOS Transceiver.

Sangyeop Lee, Shinsuke Hara, Takeshi Yoshida, Shuhei Amakawa, Ruibing Dong, Akifumi Kasamatsu, Junji Sato, Minoru Fujishima

IEEE J. Solid State Circuits, 2019

An 80Gb/s 300GHz-Band Single-Chip CMOS Transceiver.

Sangyeop Lee, Ruibing Dong, Takeshi Yoshida, Shuhei Amakawa, Shinsuke Hara, Akifumi Kasamatsu, Junji Sato, Minoru Fujishima

Proceedings of the IEEE International Solid- State Circuits Conference, 2019

2018

32-Gbit/s CMOS Receivers in 300-GHz Band.

Shinsuke Hara, Kosuke Katayama, Kyoya Takano, Ruibing Dong, Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

IEICE Trans. Electron., 2018

300-GHz CMOS transmitter module with built-in waveguide transition on a multilayered glass epoxy PCB.

Kyoya Takano, Kosuke Katayama, Shinsuke Hara, Ruibing Dong, Koichi Mizuno, Kazuaki Takahashi, Akifumi Kasamatsu, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

Proceedings of the 2018 IEEE Radio and Wireless Symposium, 2018

Frequency Up-Conversion of Data-Carrying Optical Vortex for Optical Fibre to Optical Wireless Communications Interface.

Guo-Wei Lu, Junichi Hamazaki, Keizo Inagaki, T. Kishimoto, Yuichi Ogawa, Norihiko Sekine, Akifumi Kasamatsu, Naokatsu Yamamoto, S. Yamaguchi, Iwao Hosako

Proceedings of the European Conference on Optical Communication, 2018

2017

A - 244-dB FOM High-Frequency Piezoelectric Resonator-Based Cascaded Fractional-N PLL With Sub-ppb-Order Channel-Adjusting Technique.

Sho Ikeda, Hiroyuki Ito, Akifumi Kasamatsu, Yosuke Ishikawa, Takayoshi Obara, Naoki Noguchi, Koji Kamisuki, Yao Jiyang, Shinsuke Hara, Ruibing Dong, Shiro Dosho, Noboru Ishihara, Kazuya Masu

IEEE J. Solid State Circuits, 2017

17.9 A 105Gb/s 300GHz CMOS transmitter.

Kyoya Takano, Shuhei Amakawa, Kosuke Katayama, Shinsuke Hara, Ruibing Dong, Akifumi Kasamatsu, Iwao Hosako, Koichi Mizuno, Kazuaki Takahashi, Takeshi Yoshida, Minoru Fujishima

Proceedings of the 2017 IEEE International Solid-State Circuits Conference, 2017

Design of high-frequency piezoelectric resonator-based cascaded fractional-N PLL with sub-ppb-order channel adjusting technique.

Yosuke Ishikawa, Sho Ikeda, Hiroyuki Ito, Akifumi Kasamatsu, Takayoshi Obara, Naoki Noguchi, Koji Kamisuki, Yao Jiyang, Shinsuke Hara, Ruibing Dong, Shiro Dosho, Noboru Ishihara, Kazuya Masu

Proceedings of the 22nd Asia and South Pacific Design Automation Conference, 2017

2016

Ultrashort optical pulse source using Mach-Zehnder-modulator-based flat comb generator.

Isao Morohashi, Takahide Sakamoto, Norihiko Sekine, Akifumi Kasamatsu, Iwao Hosako

Nano Commun. Networks, 2016

A 300 GHz CMOS Transmitter With 32-QAM 17.5 Gb/s/ch Capability Over Six Channels.

Kosuke Katayama, Kyoya Takano, Shuhei Amakawa, Shinsuke Hara, Akifumi Kasamatsu, Koichi Mizuno, Kazuaki Takahashi, Takeshi Yoshida, Minoru Fujishima

IEEE J. Solid State Circuits, 2016

Compact 141-GHz Differential Amplifier with 20-dB Peak Gain and 22-GHz 3-dB Bandwidth.

Shinsuke Hara, Kosuke Katayama, Kyoya Takano, Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

IEICE Trans. Electron., 2016

An 8.865-GHz -244dB-FOM high-frequency piezoelectric resonator-based cascaded fractional-N PLL with sub-ppb-order channel adjusting technique.

Sho Ikeda, Hiroyuki Ito, Akifumi Kasamatsu, Yosuke Ishikawa, Takayoshi Obara, Naoki Noguchi, Koji Kamisuki, Yao Jiyang, Shinsuke Hara, Ruibing Dong, Shiro Dosho, Noboru Ishihara, Kazuya Masu

Proceedings of the 2016 IEEE Symposium on VLSI Circuits, 2016

20.1 A 300GHz 40nm CMOS transmitter with 32-QAM 17.5Gb/s/ch capability over 6 channels.

Kosuke Katayama, Kyoya Takano, Shuhei Amakawa, Shinsuke Hara, Akifumi Kasamatsu, Koichi Mizuno, Kazuaki Takahashi, Takeshi Yoshida, Minoru Fujishima

Proceedings of the 2016 IEEE International Solid-State Circuits Conference, 2016

2015

Generation of Arbitrarily Patterned Pulse Trains in the THz Range by Spectral Synthesis of Optical Combs.

Isao Morohashi, Takahide Sakamoto, Norihiko Sekine, Tetsuya Kawanishi, Akifumi Kasamatsu, Iwao Hosako

IEICE Trans. Electron., 2015

Impact of Mode Filtering on the Performance of Femtosecond Pulse Amplification in a Large Mode Area Fiber.

Junichi Hamazaki, Housei Mogi, Norihiko Sekine, Satoshi Ashihara, Akifumi Kasamatsu, Iwao Hosako

IEICE Trans. Electron., 2015

2013

On Neuro-inspired Wireless Sensor Networks.

Ferdinand Peper, Naoki Wakamiya, Akifumi Kasamatsu, Shukichi Tanaka, Kenji Leibnitz, Jun-nosuke Teramae, Katsuyuki Kasai, Akira Otomo

Proceedings of the 2013 IEEE 10th International Conference on Ubiquitous Intelligence and Computing and 2013 IEEE 10th International Conference on Autonomic and Trusted Computing, 2013

2005

RF-CMOS Implementation of UWB Transceivers and Its Application to Video Transmission.

Akifumi Kasamatsu, Akio Tanaka, Hiroshi Kodama, Satoru Tanoi, Yasuhiro Kaizaki, Juichi Nakada, Masami Hagio, Yoshiaki Kuraishi, Keren Li, Hitoshi Utagawa, Toshiaki Matsui, Ryuji Kohno

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005