Generalized Analysis of Output-Power Limitations of Resonant-Tunnelling-Diode Oscillators With Symmetrical Slot Antennas

IF 3.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Terahertz Science and Technology Pub Date : 2024-07-30 DOI:10.1109/TTHZ.2024.3435464

Gabriele Picco;Petr Ourednik;Dinh Tuan Nguyen;Michael Feiginov

引用次数: 0

Abstract

In this article, we present optimization results for the symmetrical-slot-antenna resonant-tunnelling-diode (RTD) oscillators with account of relevant antenna losses and RTD parasitics. The results are in good agreement with available experimental data. The frequency roll-off of the output power has a complicated dependence on the oscillator parameters and does not exhibit a distinct dominant mechanism responsible for it. However, the roll-off is much steeper for lower-current-density RTDs, with much better performance of high-current-density RTDs not only at terahertz (THz) but also at sub-THz frequencies. The required minimum RTD-mesa area for optimized oscillators remains in an acceptable range for common fabrication technology:

$\approx 0.1\text{--}0.2\,\mu\text {m}^{2}$

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带对称槽天线的谐振-隧道-二极管振荡器输出功率限制的广义分析

本文介绍了对称槽天线谐振-隧道二极管（RTD）振荡器的优化结果，并考虑了相关的天线损耗和 RTD 寄生效应。结果与现有的实验数据十分吻合。输出功率的频率衰减与振荡器参数有着复杂的关系，并没有表现出明显的主导机制。不过，低电流密度热电阻的频率滚降要陡峭得多，而高电流密度热电阻不仅在太赫兹（THz）频率下性能更好，在亚太赫兹频率下也是如此。对于普通制造技术而言，优化振荡器所需的最小 RTD-mesa 面积仍在可接受的范围内：约 0.1text{--}0.2\\mu\text{m}^{2}$。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Terahertz Science and Technology ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

7.10

自引率

9.40%

发文量

102

期刊介绍： IEEE Transactions on Terahertz Science and Technology focuses on original research on Terahertz theory, techniques, and applications as they relate to components, devices, circuits, and systems involving the generation, transmission, and detection of Terahertz waves.