@article{CTT100892466, author = {Sangyeop Lee and Kyoya Takano and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A 0.6-V 41.3-GHz power-scalable sub-sampling PLL in 55-nm CMOS DDC}, journal = {IEICE Transactions on Electronics}, year = 2023, } @article{CTT100892465, author = {Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A 58-%-lock-range divide-by-9 injection-locked frequency divider using harmonic-control technique}, journal = {IEICE Transactions on Electronics}, year = 2023, } @article{CTT100887421, author = {Shuhei Amakawa and Ryotaro Sugimoto and Korkut Kaan Tokgoz and Sangyeop Lee and Hiroyuki Ito and Ryoko Kishikawa}, title = {Signal-Flow-Graph Analysis of Weakly Nonlinear Microwave Circuits around a Large-Signal Operating Point}, journal = {IEEE Transactions on Microwave Theory and Techniques}, year = 2023, } @article{CTT100873337, author = {Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A 0.4-V 29-GHz-bandwidth power-scalable distributed amplifier in 55-nm CMOS DDC process}, journal = {}, year = 2022, } @article{CTT100881725, author = {Shinsuke Hara and Ruibing Dong and Sangyeop Lee and Kyoya Takano and Naoya Toshida and Akifumi Kasamatsu and Kunio Sakakibara and Takeshi Yoshida and Shuhei Amakawa and Minoru Fujishima}, title = {A 76-Gbit/s 265-GHz CMOS receiver with WR-3.4 waveguide interface}, journal = {IEEE Journal of Solid-State Circuits}, year = 2022, } @article{CTT100845955, author = {Yohei MORISHITA and Sangyeop LEE and Toshihiro TERAOKA and Ruibing DONG and Yuichi KASHINO and Hitoshi ASANO and Shinsuke HARA and Kyoya TAKANO and Kosuke KATAYAMA and Takenori SAKAMOTO and Naganori SHIRAKATA and Koji TAKINAMI and Kazuaki TAKAHASHI and Akifumi KASAMATSU and Takeshi YOSHIDA and Shuhei AMAKAWA and Minoru FUJISHIMA}, title = {300-GHz-band OFDM video transmission with CMOS TX/RX modules and 40 dBi Cassegrain antenna toward 6G}, journal = {IEICE Transactions on Electronics}, year = 2021, } @article{CTT100873339, author = {Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Shinsuke Hara and Minoru Fujishima}, title = {A 32 Gb/s CMOS receiver with analog carrier recovery and synchronous QPSK demodulation}, journal = {}, year = 2021, } @article{CTT100845824, author = {Sangyeop Lee and Shinsuke Hara and Takeshi Yoshida and Shuhei Amakawa and Ruibing Dong and Akifumi Kasamatsu and Junji Sato and Minoru Fujishima}, title = {An 80-Gb/s 300-GHz-band single-chip CMOS transceiver}, journal = {}, year = 2019, } @inproceedings{CTT100910881, author = {Shuhei Amakawa and Ryotaro Sugimoto and Korkut Kaan Tokgoz and Sangyeop Lee and Hiroyuki Ito and Ryoko Kishikawa}, title = {Signal-flow-graph analysis of weakly nonlinear microwave circuits around a large-signal operating point}, booktitle = {}, year = 2024, } @inproceedings{CTT100908039, author = {李尚曄 and 吉田毅 and 天川修平 and 高野恭弥 and 原紳介 and 渡邊一世 and 笠松章史}, title = {300GHz帯電波反射体の研究開発}, booktitle = {}, year = 2023, } @inproceedings{CTT100890887, author = {Takeshi Yoshida and Shuhei Amakawa and Sangyeop Lee and Masao Fujita and Kyoya Takano and Shinsuke Hara and Watanabe Issei and Akifumi Kasamatsu}, title = {Ultra-wideband electromagnetic-wave absorber/reflector for beyond 5G applications}, booktitle = {}, year = 2023, } @inproceedings{CTT100884697, author = {Sangyeop Lee and Masao Fujita and Masayuki Toyoda and Kyoya Takano and Shinsuke Hara and Watanabe Issei and Akifumi Kasamatsu and Shuhei Amakawa and Takeshi Yoshida and Hiroyuki Ito}, title = {A transparent band-pass-filtered reflector for IEEE Standard 802.15.3d}, booktitle = {}, year = 2022, } @inproceedings{CTT100884723, author = {Shuhei Amakawa and Ryotaro Sugimoto and Korkut Kaan Tokgoz and Sangyeop Lee and Hiroyuki Ito}, title = {Signal-flow-graph analysis of weakly nonlinear RF circuits}, booktitle = {}, year = 2022, } @inproceedings{CTT100881723, author = {Sangyeop Lee and Yohei Morishita and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {300-GHz self-heterodyne-mixing-receiver-based wireless data transmission}, booktitle = {}, year = 2022, } @inproceedings{CTT100873341, author = {Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A 300-GHz analog-demodulation CMOS receiver for IEEE 802.15.3d}, booktitle = {}, year = 2022, } @inproceedings{CTT100873394, author = {天川修平 and 李尚曄 and TokgozKorkutKaan and 伊藤浩之}, title = {Circuit design and device modeling for biomedical applications}, booktitle = {}, year = 2022, } @inproceedings{CTT100873349, author = {Sangyeop Lee and Kosuke Katayama and Kyoya Takano and Masao Fujita and Masayuki Toyoda and Shinsuke Hara and Issei Watanabe and Akifumi Kasamatsu and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {300-GHz back-radiation on-chip-antenna measurement with electromagnetic-wave-absorption sheet}, booktitle = {}, year = 2022, } @inproceedings{CTT100873351, author = {Shuhei Amakawa and Sangyeop Lee and Korkut Kaan Tokgoz and Hiroyuki Ito}, title = {Visualizing small-signal responses of a nonlinear RF circuit under large signal operating conditions}, booktitle = {}, year = 2021, } @inproceedings{CTT100873387, author = {李尚曄 and 藤田真男 and 豊田将之 and 原紳介 and 天川修平 and 吉田毅 and 藤島実}, title = {電波吸収体による300GHz 帯近距離無線通信特性改善}, booktitle = {}, year = 2021, } @inproceedings{CTT100873361, author = {Shinsuke Hara and Ruibing Dong and Sangyeop Lee and Kyoya Takano and Naoya Toshida and Satoru Tanoi and Mohamed H. Mubarak and Norihiko Sekine and Issei Watanabe and Akifumi Kasamatsu and Kunio Sakakibara and Shunichi Kubo and Satoshi Miura and Yohtaro Umeda and Takeshi Yoshida and Shuhei Amakawa and Minoru Fujishima}, title = {A 76-Gbit/s 265-GHz CMOS receiver}, booktitle = {}, year = 2021, } @inproceedings{CTT100873345, author = {Sangyeop Lee and Shinsuke Hara and Ruibing Dong and Kyoya Takano and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A 272-GHz CMOS Analog BPSK/QPSK Demodulator for IEEE 802.15.3d}, booktitle = {}, year = 2021, } @inproceedings{CTT100873340, author = {Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {300-GHz CMOS-based wireless link for future communication}, booktitle = {}, year = 2021, } @inproceedings{CTT100873344, author = {Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Shinsuke Hara and Minoru Fujishima}, title = {A 32 Gb/s CMOS receiver with analog carrier recovery and synchronous QPSK demodulation}, booktitle = {}, year = 2021, } @inproceedings{CTT100873368, author = {Toyoyuki Hagiwara and Natsu Yamaki and Koki Sekine and Hajime Sakai and Kenta Sahara and Kyoya Takano and Shinsuke Hara and Sangyeop Lee and Ruibing Dong and Satoru Tanoi and Shunichi Kubo and Satoshi Miura and Akifumi Kasamatsu and Takeshi Yoshida and Shuhei Amakawa and Kunio Sakakibara and Yohtaro Umeda and Minoru Fujishima}, title = {A 258-GHz CMOS transmitter with phase-shifting architecture for phased-array systems}, booktitle = {}, year = 2021, } @inproceedings{CTT100845970, author = {Sangyeop Lee and Masao Fujita and Masayuki Toyoda and Shinsuke Hara and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {Effect of an electromagnetic wave absorber on 300-GHz short-range wireless communications}, booktitle = {}, year = 2020, } @inproceedings{CTT100845967, author = {Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Yohei Morishita and Shinsuke Hara and Yuichi Kashino and Minoru Fujishima}, title = {300-GHz CMOS-based wireless link using 40-dBi Cassegrain antenna for IEEE Standard 802.15.3d}, booktitle = {}, year = 2020, } @inproceedings{CTT100845959, author = {李尚曄 and 董鋭冰 and 原紳介 and 高野恭弥 and 天川修平 and 吉田毅 and 藤島実}, title = {300-GHz wireless data transmission system with low-SNR CMOS RF front end}, booktitle = {}, year = 2019, } @inproceedings{CTT100845992, author = {Kosuke Ono and Sangyeop Lee and Minoru Fujishima and Hiroyuki Ito and Shuhei Amakawa}, title = {Millimeter-wave CMOS amplifier with negative-capacitance feedback using half-wave transformer}, booktitle = {}, year = 2019, } @inproceedings{CTT100845995, author = {伊藤駿 and 李尚曄 and 吉田毅 and 天川修平 and 藤島実}, title = {局所帰還を有する80GHzCMOS電力増幅最終段の検討}, booktitle = {}, year = 2019, } @inproceedings{CTT100845996, author = {小林知広 and 李尚曄 and 天川修平 and 吉田毅 and 藤島実}, title = {異なるグランドスロット幅を有するスローウェーブ伝送線路の評価}, booktitle = {}, year = 2019, } @inproceedings{CTT100845966, author = {Sangyeop Lee and Ruibing Dong and Shinsuke Hara and Kyoya Takano and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A 6-mW-DC-power 300-GHz CMOS receiver for near-field wireless communications}, booktitle = {}, year = 2019, } @inproceedings{CTT100845965, author = {Sangyeop Lee and Kyoya Takano and Shinsuke Hara and Ruibing Dong and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A-40-dBc integrated-phase-noise 45-GHz sub-sampling PLL with 3.9-dBm output and 2.1% DC-to-RF efficiency}, booktitle = {}, year = 2019, } @inproceedings{CTT100845964, author = {Sangyeop Lee and Ruibing Dong and Shinsuke Hara and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {300-GHz wireless data transmission system with low-SNR CMOS RF front end}, booktitle = {}, year = 2019, } @inproceedings{CTT100845963, author = {Sangyeop Lee and Ruibing Dong and Takeshi Yoshida and Shuhei Amakawa and Shinsuke Hara and Akifumi Kasamatsu and Junji Sato and Minoru Fujishima}, title = {An 80Gb/s 300GHz-band single-chip CMOS transceiver}, booktitle = {}, year = 2019, } @inproceedings{CTT100845991, author = {Shuhei Amakawa and Atsushi Takeshige and Shinsuke Hara and Ruibing Dong and Sangyeop Lee and Takeshi Yoshida and Minoru Fujishima and Kazuya Masu and Hiroyuki Ito}, title = {Causal characteristic impedance determination using calibration comparison and propagation constant}, booktitle = {}, year = 2019, } @inproceedings{CTT100845956, author = {天川 修平 and 李 尚曄 and 高野 恭弥 and 董 鋭冰 and 天川 修平 and 吉田 毅 and 藤島 実}, title = {A 37-GHz-Input Divide-by-36 Injection-Locked Frequency Divider with 1.6-GHz Lock Range}, booktitle = {}, year = 2018, } @inproceedings{CTT100845990, author = {Shinsuke Hara and Kyoya Takano and Kosuke Katayama and Ruibing Dong and Sangyeop Lee and Issei Watanabe and Norihiko Sekine and Akifumi Kasamatsu and Takeshi Yoshida and Shuhei Amakawa and Minoru Fujishima}, title = {300-GHz CMOS transceiver for terahertz wireless communication,}, booktitle = {}, year = 2018, } @inproceedings{CTT100845973, author = {Kyoya Takano and Ruibing Dong and Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A 239-315 GHz CMOS frequency doubler designed by using a small-signal harmonic model}, booktitle = {}, year = 2018, } @inproceedings{CTT100845975, author = {Ruibing Dong and Kosuke Katayama and Kyoya Takano and Sangyeop Lee and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {79–85GHz CMOS amplifier with 0.35 V supply voltage}, booktitle = {}, year = 2018, } @inproceedings{CTT100845961, author = {Shuhei Amakawa and Sangyeop Lee and Kyoya Takano and Ruibing Dong and Shuhei Amakawa and Takeshi Yoshida and Minoru Fujishima}, title = {A 300-μW K-band oscillator with high-Q open-stub capacitor in 55-nm CMOS DDC}, booktitle = {}, year = 2018, } @inproceedings{CTT100845998, author = {瀧脇朋也 and 藤島実 and 吉田毅 and 天川修平 and 高野恭弥 and 李尚曄}, title = {60GHz帯低電圧低消費電力LC電圧制御発振器}, booktitle = {}, year = 2018, }