AN EXPERIMENTAL INVESTIGATION OF THE PROPERTIES OF CORRUGATED CYLINDRICAL SURFACE WAVEGUIDES
AN EXPERIMENTAL INVESTIGATION OF THE PROPERTIES OF CORRUGATED CYLINDRICAL SURFACE WAVEGUIDES
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DOI：
10.1049/pi-3.1954.0042
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发表时间：
1954-01-01
期刊：
影响因子：
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通讯作者：
KARBOWIAK, AE
中科院分区：
文献类型：
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作者：
BARLOW, HEM;KARBOWIAK, AE
本文介绍了一种用于支撑电磁波的外波纹圆柱金属表面特性的实验研究。特别是，采用了外径为3/16的黄铜棒，并沿长度横向开有规则间隔的凹槽，以引导单线传输中常见的柱面波。用表面波谐振器在2500-10000mc/S范围内进行了多个频率的测量。在任何情况下，波纹深度都没有超过0.050英寸。结果表明，当导波波长内至少有两条波纹时，均匀波纹圆柱面可作为表面波的理想导波。波纹导轨表面电抗的测量结果记录在许多图表中。本文推导了波纹表面表面电抗的近似表达式，并发现在缝隙宽度小于缝隙深度，且每个波长包含多个波纹的情况下，该公式与实验结果符合得很好。
The paper describes an experimental study of the properties of externally corrugated cylindrical metal surfaces when used for the support of electromagnetic waves. In particular brass rods of 3/16 in outside diameter and grooved transversely at regular intervals along the length were employed to guide cylindrical surface-waves of the kind familiar in single-wire transmission. Measurements were made at a number of frequencies in the range 2 500–10 000 Mc/s using a surface-wave resonator. In no case did the depth of corrugation exceed 0.050in. It is shown that a uniformly corrugated cylindrical surface acts as a satisfactory guide for a surface wave if there are at least two corrugations within the guide wavelength. The results of measurements on the surface reactance of corrugated guides are recorded in a number of graphs. An approximate expression for the surface reactance of a corrugated surface is derived in the paper and found to be in reasonable agreement with the experimental results, provided that the slot width is less than the slot depth, and each wavelength includes several corrugations.