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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >A compact ultra wide band bandpass filter with dual band notch designed based on composite right/left-handed transmission line unit cell
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A compact ultra wide band bandpass filter with dual band notch designed based on composite right/left-handed transmission line unit cell

机译：基于右/左手传输线单位单元设计的紧凑型超宽带双通陷波滤波器

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摘要

In this article, we propose an ultra wide band (UWB) bandpass filter with dual notchcharacteristics. The proposed filter is designed based on composite right/left handed(CRLH) transmission lines. The filter is having a compact size of 2.4 mm × 8.78 mmand printed on FR4 material with relative permittivity 4.4 with thickness 1.6 mm.The filter is constructed by series of strip lines, which forms interdigital capacitanceand shunt inductors allowing both low and high frequencies of the UWB to pass.The selectivity in lower and higher parts of the UWB is achieved by the slots etchedfrom the ground plane. The dual band notch is obtained at 4 GHz and 7 GHz usingthe L-shaped strip lines on both sides of the filter. The comparative analysis of theproposed UWB band pass filter without and with notch characteristics is presentedwith the help of the S_(11) and S_(21) curves.
机译：在本文中，我们提出了具有双陷波特性的超宽带（UWB）带通滤波器。提出的滤波器是基于复合的右手/左手 r n（CRLH）传输线设计的。该滤波器尺寸为2.4 mm×8.78 mm r n，并印刷在FR4材料上，相对介电常数为4.4，厚度为1.6 mm。 r n该滤波器由一系列带状线构成，形成叉指电容nand并联电感器允许UWB的低频和高频通过。 r nUWB下部和较高部分的选择性是通过从接地层蚀刻的槽实现的。使用滤波器两侧的L形带状线在4 GHz和7 GHz处获得双频带陷波。借助于S_（11）和S_（21）曲线，对提出的不带陷波特性的UWB带通滤波器进行了比较分析。

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