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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Miniaturized branch-line coupler based on slow-wave microstrip lines
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Miniaturized branch-line coupler based on slow-wave microstrip lines

机译:基于慢波微带线的小型分支线耦合器

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摘要

This paper presents a miniaturized 3-dB branch-line coupler based on slow-wave microstrip transmission lines. The miniaturized coupler operating at 2.45 GHz is designed and implemented on a double-layer printed circuit board substrate with blind metallic vias embedded in the lower substrate layer providing the slow-wave effect. Based on this concept, a 43% size miniaturization is achieved as compared with a classical microstrip branch-line coupler prototype. The measured S parameters present a return loss of 25.5 dB and an average insertion loss equal to 0.05 dB at the operating frequency.
机译:本文提出了一种基于慢波微带传输线的小型化3dB支线耦合器。工作在2.45 GHz的小型耦合器是在双层印刷电路板基板上设计和实现的,该基板的下层埋有金属盲孔,可提供慢波效应。基于这一概念,与经典的微带支线耦合器原型相比,尺寸缩小了43%。在工作频率下,测得的S参数表现出25.5 dB的回波损耗和等于0.05 dB的平均插入损耗。

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