[21p-A202-1~12] 3.8 Terahertz technologies (formerly 3.9)

▲ [21p-A202-1] Oscillation frequency increase in structure-simplified RTD oscillator with array configuration

〇(D)Mai Van Ta¹, Yusei Suzuki¹, Tetsuyuki Namba¹, Safumi Suzuki¹, Masahiro Asada¹ (1.TokyoTech)

Keywords:structure-simplified RTD oscillator, Zigzag arrangement, Terahertz

Recently, we proposed a two-element arrayed RTD oscillator coupled with a common stabilization resistor operating in odd-mode, where two RTDs oscillate in anti-phase. Because the total AC current flowing through the common resistor was canceled due to the odd-mode operation, the conduction loss of the common resistor becomes small. Therefore, one can employ smaller RTD mesas with maintaining the oscillation condition in the arrayed device, and thus, a higher frequency oscillation can be achieved. In this study, we demonstrate an increase in the oscillation frequency owing to the reduction in the conduction loss using the odd-mode operation in arrayed RTD oscillator.