"Akihiko Hirata,Koichiro Itakura,Taiki Higashimoto,Yuta Uemura,Tadao Nagatsuma,Takashi Tomura,Jiro Hirokawa,Norihiko Sekine,Issei Watanabe,Akifumi Kasamatsu","Transmission Characteristics Control of 120 GHz-band Bandstop Filter by Coupling Alignment-Free Lattice Pattern",,"IEICE Trans. Electron.",,"vol. 104","no. 10","pp. 587-595",2021,Oct.
"K. Itakura,A. Hirata,M. Sonoda,T. Higashimoto,T. Nagatsuma,T. Tomura,J. Hirokawa,N. Sekine,I. Watanabe,A. Kasamatsu","Control of 120-GHz-band split ring resonator filter by coupling lattice pattern substrate",,"IEICE Trans. Electron.",,"vol. E104-C","no. 3","pp. 102-111",2021,Mar.