@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{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{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,
}

@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,
}