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首页> 外文期刊>IEEE Transactions on Microwave Theory and Techniques >Design of Matching Circuits for Microstrip Triplexers Based on Stepped-Impedance Resonators
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Design of Matching Circuits for Microstrip Triplexers Based on Stepped-Impedance Resonators

机译:基于阶跃阻抗谐振器的微带三工器匹配电路设计

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摘要

New matching circuits for microstrip triplexers are proposed based on half-wavelength tapped-connected (or fed) stepped-impedance resonators. The stepped-impedance resonators play important roles for the matching circuits, either to serve as a through pass at the center frequency of a bandpass filter or to provide a short circuit at the center frequency of another bandpass filter. First, three tapped-connected stepped-impedance resonators together with suitable branch transmission lines are utilized to develop the matching circuits for a microstrip triplexer. The design procedure for these matching circuits is much simpler than that for the conventional triplexer structures due to the use of tapped-connected stepped-impedance resonators. Second, to reduce the number of stepped-impedance resonators and to improve the spurious resonances associated with the proposed matching circuits, modified matching circuits for the triplexer are also proposed. Agreement between measured and simulated results is observed and supports the usefulness of the design procedure
机译:基于半波长抽头连接(或馈电)步进阻抗谐振器,提出了用于微带三工器的新型匹配电路。步进阻抗谐振器对于匹配电路起着重要的作用,它们要么在带通滤波器的中心频率处充当直通通道,要么在另一个带通滤波器的中心频率处产生短路。首先,三个抽头连接的步进阻抗谐振器与合适的分支传输线一起用于开发微带三工器的匹配电路。由于使用了抽头连接的步进阻抗谐振器,因此这些匹配电路的设计过程比常规三工器结构的设计过程简单得多。其次,为了减少步进阻抗谐振器的数量并改善与所提出的匹配电路相关的寄生谐振,还提出了用于三工器的改进的匹配电路。可以观察到测量结果与模拟结果之间的一致性,并支持设计过程的实用性

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