Design of Compact Low-pass Filter with With Wide Rejection Band Using Cascaded Arrowhead-DGS and Multilayer-Technique
Design of Compact Low-pass Filter with With Wide Rejection Band Using Cascaded Arrowhead-DGS and Multilayer-Technique
复制标题
采用级联 Arrowhead-DGS 和多层技术设计紧凑型宽阻带低通滤波器
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
E. Burte
中科院分区：
文献类型：
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作者：
A. Boutejdar;A. Omar;A. Batmanov;E. Burte
本文提出并实现了一种由箭头-DGS槽构成的紧凑型低通滤波器。为了减小结构尺寸和提高低通滤波器的性能，对三角形槽进行了研究，并采用三角形槽来紧固箭头之间的耦合。在直流电至3 GHz的通带范围内，测量的插入损耗均小于0.8分贝。从4.0 GHz到14.0 GHz，只需要3个单元就可以实现-20dB以上的宽阻带抑制。用等效电路模型研究了该滤波器的结构，并与全波电磁仿真进行了比较。测试结果表明，新设计抑制了纹波，增大了阻带，具有良好的性能。
In this paper a compact low-pass filter (LPF) composed on arrowhead-DGS slots has been proposed and implemented. Triangle-shaped slot is investigated and adapted to tighten the coupling of arrowheads in order to minimize the size of a structure and improve a LPF performance. The measured insertion loss is less than 0.8 dB throughout the pass band from DC up to 3 GHz. Only three cells of the proposed structure are required for a wide stop-band with more than - 20 dB stop-band rejection from 4.0 GHz up to 14.0 GHz. The equivalent circuit model has been studied to investigate the filter structure and compared with a full-wave EM simulation. Measured results show that the new design provides good performance by suppressing ripples and enlarges the stop-band.