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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >A dual notched band UWB-BPF based on microstrip-to-short circuited CPW transition
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A dual notched band UWB-BPF based on microstrip-to-short circuited CPW transition

机译：基于微带至短路CPW过渡的双陷波带UWB-BPF

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摘要

This paper proposes a dual notched band ultra-wideband (UWB) bandpass filter (BPF) based on hybrid transition of microstrip and coplanar waveguide (CPW). The CPW in ground plane houses a stepped impedance resonator shorted at ends, and is designed to place its resonant modes within the UWB passband. The microstrips on the top plane are placed some distance apart in a back-to-back manner. The transition of microstrip on top and shorted CPW in the ground is coupled through the dielectric in a broadside manner. The optimized design of the transition develops the basic UWB spectrum with good return/insertion loss and extended stopband. Later, defected ground structure, embedded in CPW, and split ring resonators, coupled to feeding lines are utilized to develop dual sharp passband notches. The simulated data are verified against the experimentally developed prototype. The proposed dual notched UWB-BPF structure measures only 14.6 x 7.3 mm(2), thereby justifying its compactness.
机译：本文提出了一种基于微带和共面波导（CPW）混合过渡的双陷波带超宽带（UWB）带通滤波器（BPF）。接地平面中的CPW包含一个在两端短路的阶梯式阻抗谐振器，并设计为将其谐振模式置于UWB通带内。顶面上的微带以背对背的方式相隔一定距离。顶部的微带过渡和接地的CPW短路通过电介质以宽边方式耦合。过渡的优化设计可以开发出具有良好回波/插入损耗和扩展阻带的基本UWB频谱。后来，嵌入CPW的有缺陷的接地结构以及与馈线耦合的开环谐振器被用于开发双尖锐的通带槽口。对照实验开发的原型验证了仿真数据。拟议的双缺口UWB-BPF结构尺寸仅为14.6 x 7.3 mm（2），从而证明了其紧凑性。

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