论文标题
分布式退化带边缘振荡器
Distributed Degenerate Band Edge Oscillator
论文作者
论文摘要
我们通过工程化两偶联的周期性波导的分散来提出一类新的振荡器，以表现出退化带边缘（DBE）。 DBE是第四阶的堕落（EPD）的特殊点，即代表波导系统的四个本征模的合并而没有损失和增益。我们提出了具有独特模式选择方案的周期耦合传输线中实现的分布式DBE振荡器，即使在存在负载变化的情况下，也会导致稳定的单频振荡。由于与EPD概念相关的独特功能，DBE振荡器可能会导致RF来源的效率和性能提高。这类振荡器有望改善离散的相干来源，并可以扩展到辐射结构，以实现新的活性积分天线阵列。
We propose a new class of oscillators by engineering the dispersion of two-coupled periodic waveguides to exhibit a degenerate band edge (DBE). The DBE is an exceptional point of degeneracy (EPD) of order four, i.e., representing the coalescence of four eigenmodes of a waveguide system without loss and gain. We present a distributed DBE oscillator realized in periodic coupled transmission lines with a unique mode selection scheme that leads to a stable single-frequency oscillation, even in the presence of load variation. The DBE oscillator potentially leads to a boost of the efficiency and performance of RF sources, thanks to the unique features associated to the EPD concept. This class of oscillators is promising for improving discrete-distributed coherent sources and can be extended to radiating structures to achieve a new class of active integrated antenna arrays.
