一种平面超材料共向耦合器,反向耦合功率

R. Islam, G. Eleftheriades
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引用次数: 61

摘要

研究了一种由规则微带线和负折射率线组成的超材料耦合器。观察到特殊的耦合效应,其中共向行波在线路上产生反向坡印亭矢量,从而导致功率反向耦合。该耦合器在耦合功率和端口隔离方面表现出更好的性能,但与相应的常规微带耦合线耦合器相比,带宽略有减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A planar metamaterial co-directional coupler that couples power backwards
A metamaterial coupler made of a regular microstrip line and a negative-refractive-index (NRI) line is examined. Peculiar coupling effects are observed in which co-directional traveling waves result in contra-directional Poynting vectors on the lines thus leading to power being coupled backwards. This coupler demonstrates better performance in terms of coupled power and port isolation, but at a slightly reduced bandwidth, when compared to a commensurate regular microstrip coupled-line coupler.
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