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一种新颖三元件补偿的微带线定向耦合器研究 被引量：3

Study on A Novel Microstrip Directional Coupler Using Three-Element Compensation
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摘要 提出了一种在传统的微带线定向耦合器两端和中间分别加入补偿电容(简称三元件补偿)的具有高定向性、低插入损耗、低反射损耗和较宽带宽的微带线定向耦合器结构,给出了物理模型,对该结构进行了理论分析,并设计制作和测量了该种耦合器。测量结果表明,该定向耦合器的耦合度为20dB,工作频带为2.5～3.5GHz,隔离度超过-40dB,反射损耗低于-24dB,插入损耗优于-0.25dB,性能指标明显优于传统结构的微带线定向耦合器。 A structure of microstrip directional coupler with high directivity, low insertion losses, low reflection losses and wide bandwidth is presented. Three lumped capacitors are added at the two ends and the center of the microstrip directional coupler respectively to realize high isolation. The theory, design, fabrication and measurements are given. The experimental results show that the isolation and reflection losses are less than -40dB and -24dB. The insertion losses are better than -0.25dB with design of 20dB microstrip directional coupler at the frequency range from 2.5GHz to 3.5GHz. The performances of the microstrip directional coupler with high directivity are greatly improved compared to the conventional ones.
作者 韩磊 商坚钢
机构地区 南京电子技术研究所
出处 《微波学报》 CSCD 北大核心 2010年第1期64-68,共5页 Journal of Microwaves
关键词 补偿电容 微带线定向耦合器 高定向性 Capacitive compensation, Microstrip directional coupler, High directivity
分类号 TN622 [电子电信—电路与系统] U284.238 [交通运输工程—交通信息工程及控制]
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参考文献13

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共引文献12

同被引文献26

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引证文献3

二级引证文献7

微波学报
2010年 第1期

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