Compact resonant tunneling diode (RTD) oscillators have attracted considerable attention for terahertz generation at room temperature. Here, we propose and fabricate a novel and highly efficient RTD with a square split ring resonator (SRR). An AlAs/InGaAs double-barrier RTD is integrated into the center split gap of the SRR with a perimeter of $52~\mu \text{m}$ . Coplanar stripline antennas are integrated with the SRR to increase the radiation efficiency. The highest measured oscillation frequency is 1.22 THz with an output power of $\sim 7~\mu \text{W}$ . The measured highest output power is $\sim 30~\mu \text{W}$ at 0.9 THz. The experimental results are in good agreement with the simulations. This work will promote the further studies of THz metamaterials.

中文翻译：

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具有开口环谐振器的高效谐振隧道二极管太赫兹振荡器


紧凑型谐振隧道二极管 (RTD) 振荡器在室温下产生太赫兹引起了广泛关注。在这里，我们提出并制造了一种带有方形开口环谐振器（SRR）的新型高效 RTD。 AlAs/InGaAs 双势垒 RTD 集成到 SRR 的中心分裂间隙中，周长为 $52~\mu \text{m}$ 。共面带状线天线与SRR集成以提高辐射效率。最高测量振荡频率为1.22 THz，输出功率为$\sim 7~\mu \text{W}$。测得0.9 THz 时的最高输出功率为$\sim 30~\mu \text{W}$。实验结果与模拟结果非常吻合。这项工作将推动太赫兹超材料的进一步研究。