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首页> 外文期刊>Microwaves, Antennas & Propagation, IET >Reduction of wide-band crosstalk for guiding microwave in corrugated metal strip lines with subwavelength periodic hairpin slits
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Reduction of wide-band crosstalk for guiding microwave in corrugated metal strip lines with subwavelength periodic hairpin slits

机译：减少用于在具有亚波长周期性发夹缝的波纹金属带材中引导微波的宽带串扰

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摘要

A new type of microstrip line on which the spoof surface plasmon polaritons (SPPs) can propagate in microwave band is developed and a scheme for reducing the wide-band crosstalk between transmission lines is proposed. The microstrip line structure is designed by introducing periodic subwavelength hairpin structure on the edge of conventional microstrip lines. Numerical methods are used to analyse the dispersion relation and guiding bandwidth in microwave regime. Besides, the authors experimentally verify that such periodically structured microstrip lines support spoof SPPs in the frequency range between 200 and 8 GHz. Compared with the quasi-transmission electron microscopy mode in conventional microstrip line, the spoof SPPs mode can be highly localised on the surface of the structured microstrip lines, and so the crosstalk between different structured microstrip lines is very weak, for example, the crosstalk between one conventional microstrip line and one structured microstrip line ranges from -19.89 to -62.39 dB (which is much lower than the crosstalk between two conventional microstrip lines) when the distance between the two microstrip lines is the same as the width of the microstrip line. Therefore this new kind of periodically structured microstrip line would be of great use in high-density microwave circuits and high-speed systems to guarantee signal integrity.
机译：开发了一种新型的微带线，可以在微波带上传播欺骗表面等离子体激元极化子（SPPs），并提出了一种减少传输线之间宽带串扰的方案。通过在常规微带线的边缘引入周期性的亚波长发夹结构来设计微带线结构。采用数值方法分析了微波状态下的色散关系和导带宽度。此外，作者通过实验验证了这种周期性构造的微带线在200至8 GHz的频率范围内支持欺骗性SPP。与常规微带线中的准透射电子显微镜模式相比，欺骗性SPPs模式可以高度定位在结构化微带线的表面上，因此不同结构化微带线之间的串扰非常微弱，例如，当两条微带线之间的距离与微带线的宽度相同时，一条常规微带线和一条结构化微带线的范围为-19.89 dB至-62.39 dB（远低于两条常规微带线之间的串扰）。因此，这种新型的周期性构造的微带线将在保证信号完整性的高密度微波电路和高速系统中大量使用。

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