[13p-N105-1~14] 3.9 テラヘルツ全般

▲ [13p-N105-2] High output powers of structure-simplified RTD oscillators with offset-fed slot and coplanar stripline antennas

〇(D)Mai Van Ta¹、Yusei Suzuki¹、Xiongbin Yu¹、Safumi Suzuki¹、Masahiro Asada¹ (1.TokyoTech)

キーワード：structure-simplified, offset, coplanar stripline

RTD oscillators have emerged as a promising candidate for THz sources. We recently proposed and demonstrated structure-simplified RTD oscillators having a big advantage for a short fabrication process due to not use of MIM capacitors which were normally used in conventional RTD oscillators. However, the output power of these RTD oscillators was relatively low at ~ 10 μW. In this work, we proposed and fabricated simple RTD oscillators with offset-fed and coplanar stripline (CPS) antennas that exhibited high output power. In addition to the offset structure, we added CPS antennas to both external sides of the stabilization resistors for further increase in radiation efficiency. We obtained the highest output power ~ 300 μW at an oscillation frequency of 500 GHz.