用于超宽带应用的紧凑微带到cps转换

2008 IEEE MTT-S International Microwave Workshop Series on Art of Miniaturizing RF and Microwave Passive Components Pub Date : 2008-12-01 DOI:10.1109/IMWS.2008.4782286

T. B. Lim, Lei Zhu

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引用次数: 16

摘要

提出了一种新型的超宽带(UWB)微带-共面带状线(cps)跃迁。这种过渡或平衡结构具有阻抗转换好、体积小、带宽宽等优点。研究了不同穿越尺寸下微带线与CPS之间的平行耦合线段，发现双传输极的出现可以很好地实现较宽的传输频带。接下来，这种单一过渡电路被优化设计为覆盖整个UWB频段(3.1 GHz至10.6 GHz)。为了在实验中验证预测结果，制作并测试了具有相同50 ω微带馈线的两个背靠背跃迁。测量结果表明，在3.5 GHz至10.0 GHz频段内，回波损耗接近10.0 dB。

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Compact Microstrip-to-CPS Transition for UWB Application

A novel ultra-wideband (UWB) microstrip-to-CPS (coplanar stripline) transition has been developed. This transition or balun structure has several attractive advantages such as good impedance transformation, compact size and wide bandwidth. After the parallel-coupled line section between the microstrip line and CPS is investigated under varied traversal dimensions, a wide transmitting band is well achieved with the emergence of two transmission poles. Next, such a single transition circuit is optimally designed to cover the whole UWB band (3.1 GHz to 10.6 GHz). To verify the predicted results in experiment, the two back-to-back transitions with the same 50 Omega microstrip feed lines are fabricated and tested. Measured results exhibit the return loss close to 10.0 dB over a band from 3.5 GHz to 10.0 GHz.

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来源期刊

2008 IEEE MTT-S International Microwave Workshop Series on Art of Miniaturizing RF and Microwave Passive Components

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