论文标题
基于具有第四阶退化带边缘的微带电路的脉冲产生
Pulse Generation Based on a Microstrip Circuit with Fourth Order Degenerate Band Edge
论文作者
论文摘要
提出了基于在非规定能量分布集中在其中间部分的腔中的结构化共振的脉冲方案。在能量充电步骤中，该腔首先用作振荡器，当激活开关时，信号从其中心提取。所提出的方案的关键组成部分是其波形频率分散图的周期性微带波导，其具有四阶退化带边缘（DBE）。 DBE是一种特殊的点退化条件，负责在腔中心局部的能量，并且还可以通过扰动很容易破坏质量因子。波导设计的DBE频率为2.86 GHz，并产生约0.1 V峰和1.1 ns宽度的脉冲。
A pulse generation scheme is proposed based on a structured resonance in a cavity where the non-conventional energy distribution is concentrated in its middle part. The cavity is first used as an oscillator during the energy charging step and when a switch is activated the signal is extracted from its center. The key component of the proposed scheme is the periodic microstrip waveguide with a fourth-order degenerate band edge (DBE) of its wavenumber-frequency dispersion diagram. The DBE is an exceptional point degeneracy condition that is responsible for the energy to be localized at the cavity center and that can also have the quality factor easily destroyed by a perturbation. The waveguide is designed to have a DBE frequency of 2.86 GHz and produces pulses of approximately 0.1 V peak and 1.1 ns width.
