Compact LPF to UWB BPF transition employing quasi-triangular DGS resonators and a discontinuity on the microstrip feed line
Compact LPF to UWB BPF transition employing quasi-triangular DGS resonators and a discontinuity on the microstrip feed line
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DOI：
10.1109/intee.2015.7416726
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
A. Boutejdar;M. Challal;A. A. Wael-A.;A. Ibrahim;P. Burte
中科院分区：
文献类型：
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作者：
A. Boutejdar;M. Challal;A. A. Wael-A.;A. Ibrahim;P. Burte
介绍了紧凑型低通滤波器和带通滤波器。该低通滤波器具有小尺寸、低插入损耗和超宽阻带特性，在6 GHz到20 GHz以上的频率范围内具有20 dB的衰减。与λg = 0.157 m的级联拓扑的0.2 λg相比，所提出的多层LPF的长度在3 GHz时减少到0.143 λg。所提出的带通滤波器是利用一个简单的变换从低通滤波器的基础上的J-逆变器技术。它具有低插入损耗和紧凑的尺寸。所提出的结构的模拟和实验结果是一致的。
Compact lowpass filter (LPF) and bandpass filter (BPF) are introduced in this paper. The proposed LPF presents small size, low insertion loss and ultra-wide stopband with 20 dB attenuation from 6 GHz to more than 20 GHz. The length of the proposed multilayer LPF is reduced to 0.143 λg @ 3 GHz in comparison with 0.2 λg for the cascaded topology with λg = 0.157 m. The proposed BPF is utilizing a simple transformation from LPF based on J-inverter technique. It has low insertion loss and compact size. The simulated and experimental results of the proposed structure are in good agreement.