Full-Wave Analysis of Quasi-Steady Propagation along Transmission Lines Periodically Loaded with Resonant Tunneling Diodes
Full-Wave Analysis of Quasi-Steady Propagation along Transmission Lines Periodically Loaded with Resonant Tunneling Diodes
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DOI：
10.1143/jjap.47.1126
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发表时间：
2008-02
影响因子：
1.5
通讯作者：
K. Narahara;Akihiro Yokota
中科院分区：
文献类型：
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作者：
K. Narahara;Akihiro Yokota
讨论了产生超短电脉冲的周期性加载共振隧穿二极管（RTD）传输线上波传播的全波特性。一旦输入脉冲越过负载RTD的峰值电压，指数波在小于峰值电压的电压下产生，并且普通正弦波形在大于峰值电压的电压下与其耦合。该指数波的波数必须比形成输入脉冲的波的波数大得多，从而实现脉冲宽度的显著压缩。在时域有限差分（FDTD）方法的框架下讨论了RTD的模型，我们通过FDTD计算演示了脉冲压缩。
The full-wave characterization of wave propagation on a transmission line periodically loaded with resonant tunneling diodes (RTDs) is discussed for the generation of ultrashort electrical pulses. Once the input pulse crosses the peak voltage of loaded RTDs, the exponential wave is developed at voltages smaller than the peak voltage, and the ordinary sinusoidal one is coupled to it at voltages larger than the peak voltage. The wave number of this exponential wave must be much larger than those of the waves forming the input pulse, so that significant compression of the pulse width is achieved. After discussing the model of RTDs in the framework of finite-difference time-domain (FDTD) method, we demonstrate the pulse compression through FDTD calculations.