A compact double folded quarter mode substrate integrated waveguide (DFQMSIW) filter
A compact double folded quarter mode substrate integrated waveguide (DFQMSIW) filter
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DOI：
10.1587/elex.13.20160330
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发表时间：
2016-05
期刊：
影响因子：
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通讯作者：
Yongzhong Zhu
中科院分区：
文献类型：
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作者：
Yongzhong Zhu
提出了一种新型的双折叠四分之一模基片集成波导谐振腔。所提出的谐振器的主谐振模式是TE 101模式。与传统基片集成波导谐振腔相比，DFQMSIW谐振腔的尺寸减小了近94%。实现了一个中心频率为2.84GHz、带宽为11.5%的三阶DFQMSIW级联滤波器。测量结果表明，滤波器插入损耗低于-1.8 dB，回波损耗优于-15 dB。仿真结果与实测结果吻合较好，验证了该方法的有效性。
A novel double folded quarter mode substrate integrated waveguide (DFQMSIW) resonator is proposed. The dominant resonant mode of the proposed resonator is TE101 mode. The size of the DFQMSIW cavity is reduced nearly by 94% compared with the conventional SIW cavity. A three order cascaded DFQMSIW filter with a center frequency of 2.84GHz and a fractional bandwidth of 11.5% is implemented. The measured results show that the filter insertion losses are below −1.8 dB and return losses are better than −15 dB. Good agreement between simulated and measured results demonstrates the validity of the proposed method.