9:30 AM - 11:30 AM △ [6a-PA3-3] Fundamental oscillation up to 1.98 THz in Resonant-Tunneling-Diodes Terahertz Oscillator with Thick Antenna Electrode 〇(M1)Ryunosuke Izumi1, Safumi Suzuki1, Masahiro Asada1 (1.Tokyo Tech)