Broadband reduction of phase noise in a spatially extended tunnel‐diode oscillator through multiple self‐injection locking

Broadband reduction of phase noise in a spatially extended tunnel‐diode oscillator through multiple self‐injection locking
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通过多重自注入锁定宽带降低空间扩展隧道二极管振荡器中的相位噪声

DOI:
10.1002/cta.3215
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发表时间:
2022
期刊:
Int. J. Circ. Theor. Appl.
影响因子:
--
通讯作者:
K. Narahara
K. Narahara
中科院分区:
--
文献类型:
--
作者:
Satoh Hisashi;Nakajima Meri;Hirano Reiko;Nakaya Yuki;K. Narahara

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提出了一种自注入锁定方案,以降低使用隧道二极管(TD)传输线的空间扩展振荡器中的相位噪声。当线性传输线连接到TD线的每个单元时,振荡边缘的一部分流过线性线。线性线路上的该波在其远端被反射,并流回TD和线性传输线路的连接点。通过将线性传输线上的反射波到达连接点所花费的时间与向前移动的振荡边缘返回到该点所花费的时间相匹配,边缘可以与通过每条线性线路流回的波同步。这种多重自注入锁定显著降低了振荡边沿的相位噪声。在这项工作中,相位噪声降低的技术是通过使用系统的扰动投影矢量的数值相位噪声分析解释。几个实验观察,以验证在TD线上行进的振荡边缘的相位噪声的减少。
A self‐injection locking scheme is proposed to reduce phase noise in a spatially extended oscillator that uses a tunnel‐diode (TD) transmission line. When a linear transmission line is connected to each cell of the TD line, a part of the oscillating edge flows through the linear line. This wave on the linear line is reflected at its far end and flows back to the point of connection of the TD and linear transmission lines. By matching the time taken by the reflected wave on the linear transmission line to reach the point of connection with the time taken by the forward‐moving oscillating edge to return to the point, the edge can be synchronized with the wave that flows back through each linear line. This multiple self‐injection locking significantly reduces the phase noise of the oscillating edge. In this work, the technique of phase noise reduction is explained through numerical phase noise analysis using the perturbation projection vector of the system. Several experimental observations were made to validate the reduction of the phase noise in the oscillating edge traveling on the TD line.
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