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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >An MMIC implementation of FitzHugh-Nagumo neurons using a resonant tunneling diode nonlinear transmission line
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An MMIC implementation of FitzHugh-Nagumo neurons using a resonant tunneling diode nonlinear transmission line

机译：使用共振隧穿二极管非线性传输线的FitzHugh-Nagumo神经元的MMIC实现

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摘要

In this paper the electronic implementation of FitzHugh-Nagumo (F-N) neurons via monolithic microwave integrated circuits (MMIC) based upon a resonant tunneling diode (RTD) nonlinear transmission line (NLTL) using a coplanar waveguide (CPW) is considered. The goals are twofold. In the framework of electrical equivalent circuit emulating nonlinear active wave propagation effects, it is shown, on one hand, how different physical mechanisms are responsible for the time evolution of given input signals. A key result is that this medium supports stable and stationary pulse propagation that is only determined by the parameters of the RTD-NLTL and is independent of the boundary conditions. On the other hand, the influence of specific line elements on the output signal waveform is discussed in a most systematic manner. This leads, for the first time, to a more physical interpretation of the properties of the RTD-NLTL and, furthermore, to interesting technical applications at multi-GHz frequencies and on picosecond time scales. As a result, physically based ways are elucidated regarding how the technical design of those compact neuromorphic electrical circuits can be optimized by numerical simulations and performed using standard MMIC technologies.
机译：在本文中，考虑了基于共鸣波导（CPW）的基于共振隧穿二极管（RTD）非线性传输线（NLTL）的单片微波集成电路（MMIC）的FitzHugh-Nagumo（F-N）神经元的电子实现。目标是双重的。在模拟非线性有源波传播效应的等效电路框架中，一方面表明了不同的物理机制如何导致给定输入信号的时间演化。一个关键的结果是，这种介质支持稳定且稳定的脉冲传播，这仅由RTD-NLTL的参数确定，并且与边界条件无关。另一方面，以最系统的方式讨论了特定线路元素对输出信号波形的影响。这首次导致对RTD-NLTL的特性进行了更物理的解释，并且进一步导致了在GHz级和皮秒级的有趣的技术应用。结果，阐明了基于物理的方式，关于如何通过数值模拟优化并使用标准MMIC技术执行这些紧凑型神经形态电路的技术设计。

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