@article{CTT100874871,
  author = {Akihiko Hirata and Koichiro Itakura and Taiki Higashimoto and Yuta Uemura and Tadao Nagatsuma and Takashi Tomura and Jiro Hirokawa and Norihiko Sekine and Issei Watanabe and Akifumi Kasamatsu},
  title = {Transmission Characteristics Control of 120 GHz-band Bandstop Filter by Coupling Alignment-Free Lattice Pattern},
  journal = {IEICE Trans. Electron.},
  year = 2021,
}

@article{CTT100853902,
  author = {K. Itakura and A. Hirata and M. Sonoda and T. Higashimoto and T. Nagatsuma and T. Tomura and J. Hirokawa and N. Sekine and I. Watanabe and A. Kasamatsu},
  title = {Control of 120-GHz-band split ring resonator filter by coupling lattice pattern substrate},
  journal = {IEICE Trans. Electron.},
  year = 2021,
}