采用CPWG过渡结构的20dB带状线耦合器

2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2016-07-20 DOI:10.1109/IMWS-AMP.2016.7588445

Huaishu Jing, Shou-zhao Jing, Yonghong Zhang

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引用次数: 1

摘要

介绍了两种高隔离度20dB定向带状线耦合器的设计。每个耦合器由一个带状线耦合器和一个过渡结构组成。采用接地共面波导(CPWG)和微带线作为过渡结构。所设计的耦合器具有体积小、隔离度高、设计程序简单等优点。对带CPWG的带状线耦合器和带微带线的带状线耦合器进行了仿真，并对仿真结果进行了比较。制作了CPWG过渡结构耦合器，并对其进行了测量。在回波损耗大于23 dB的情况下，在2.6GHz ~ 4.7 GHz频率范围内，采用CPWG制备的20dB带状线耦合器的隔离度高于43 dB。

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A 20dB stripline coupler with CPWG transitional structure

Two designs of 20dB directional stripline couplers with high isolation are presented. Each of the couplers consists of a stripline coupler and a transitional structure. Grounded coplanar waveguide (CPWG) and microstrip line are utilized as transitional structures, respectively. The presented designs of coupler have advantages of compact size, high isolation, and simple design procedure. The stripline coupler with CPWG and the one with microstrip line are simulated and the results are compared. The coupler with CPWG transitional structure is fabricated and measured. With the return loss of higher than 23 dB, the isolation of fabricated 20dB stripline coupler with CPWG is higher than 43 dB over the frequency range from 2.6GHz to 4.7 GHz.

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来源期刊

2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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