Design of balanced dual-band bandpass filter based on substrate integrated waveguide
Design of balanced dual-band bandpass filter based on substrate integrated waveguide
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DOI：
10.1049/el.2013.2371
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发表时间：
2013-09
影响因子：
1.1
通讯作者：
Xin Xu;Jianpeng Wang;Gang Zhang;Jian‐Xin Chen
中科院分区：
文献类型：
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作者：
Xin Xu;Jianpeng Wang;Gang Zhang;Jian‐Xin Chen
首次报道了一种采用基片集成波导结构的平衡双频带通滤波器。在对称平面上布置的共用TE 102模腔可以在选择性地传输差模（DM）信号的同时大大降低共模信号。此外，所需的DM响应可以很容易地分析和获得的等效2端口电路模型。为了验证设计概念，一个X波段的原型已经制造和测试。测量结果与理论计算结果吻合较好。
For the first time, a balanced dual-band bandpass filter using a substrate integrated waveguide structure is reported. The co-shared TE 102 -mode cavities arranged on the symmetrical plane can greatly reduce the common-mode signal while selectively transmitting the differential-mode (DM) signal. In addition, the desired DM response can be easily analysed and obtained by the equivalent 2-port circuit model. To validate the design concept, one X-band prototype has been fabricated and tested. The measured results match well with the theoretical counterparts.