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Cylindrical Surface Wave on Periodically Corrugated Metal

机译:周期性波纹金属上的圆柱表面波

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We present a numerical and experimental study of the dispersion characteristics of cylindrical surface waves on metallic cylinders with rectangular corrugations. In actual devices, reflections at both ends quantize the electromagnetic modes into resonant axial modes. A cavity method based on axial mode measurements is applied to study the properties of the cylindrical surface waves. The resonances are relatively sharp near the upper cutoff, but at low frequencies far from the cutoff, the resonances broaden to resemble those of a Sommerfeld wave.
机译:我们提供了一个数值和实验研究的矩形表面波纹金属圆柱上圆柱表面波的色散特性。在实际的设备中,两端的反射将电磁模量化为共振轴向模。应用基于轴向模式测量的腔方法来研究圆柱表面波的特性。在上边界附近,共振相对较尖锐,但在远离边界的低频处,共振变宽,类似于索默费尔德波。

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