Wide stopband substrate integrated waveguide filter using corner cavities
Wide stopband substrate integrated waveguide filter using corner cavities
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DOI：
10.1049/el.2012.3891
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发表时间：
2013-01
影响因子：
1.1
通讯作者：
Fang Zhu;W. Hong;J. X. Chen;K. Wu
中科院分区：
文献类型：
--
作者：
Fang Zhu;W. Hong;J. X. Chen;K. Wu
提出了一种基片集成波导(SIW)的“角腔”结构。对于每个角腔，可以引入两个传输零点(TZS)，并且通过调整合适的几何参数可以很容易地控制任一TZ的位置。利用角腔实现了一种具有宽阻带特性的新型SIW滤波器。该滤波器的中心频率为20 GHz，第一杂散出现在约40 GHz处，是中心频率的两倍。此外，在21.24~37.71 GHz频率范围内，该滤波器的阻带衰减性能优于50分贝。
A type of substrate integrated waveguide (SIW) `corner cavity` is proposed. For each corner cavity, two transmission zeros (TZs) can be introduced and the location of either TZ can easily be controlled by adjusting suitable geometrical parameters. Using the corner cavities, a novel SIW filter with wide stopband characteristic is implemented. The central frequency of the filter is 20 GHz, and the first spurious appears at about 40 GHz, which is two times the central frequency. In addition, the measured stopband attenuation of the filter is better than 50 dB from 21.24 to 37.71 GHz.