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arXiv · 1612.00844

Novel Propagation Model of Degenerate Band Edge Modes Using Dual Non-identical Pair of Coupled Transmission Lines

Muhammed Zuboraj·Kubilay Sertel·John L. Volakis
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Abstract

We present a novel propagation medium using a pair of non-identical coupled transmission lines. The medium is referred to as `butterfly' structure and is composed of four coupled transmission lines. These four coupled transmission lines generate higher-order dispersion modes by coupling the modes supported on each of the transmission lines. When these transmission line pairs are placed inside a circular waveguide, they support a strong TM01-like Degenerate Band Edge mode. This property can be used to enhance coupling of the electron beams to RF waves for high-power Traveling Wave Tubes. In this paper, we present the slow wave characteristics and Degenerate Band Edge mode formation using the coupled pair of transmission lines.

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Muhammed Zuboraj, Kubilay Sertel, John L. Volakis. 2016-12-02. Novel Propagation Model of Degenerate Band Edge Modes Using Dual Non-identical Pair of Coupled Transmission Lines. https://doi.org/10.1103/physrevapplied.7.064030

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