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Compact quad-band bandpass filter based on uniform impedance stub-loaded resonators

机译:基于均匀阻抗短负载谐振器的紧凑型四频带带通滤波器

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A new quad-band bandpass filter for Global System for Mobile Communications, Wireless Local Area Network, and Worldwide Interoperability for Microwave Access is designed and fabricated using the stub-loaded resonator (SLR) technology without complex fabrication process, such as via-hole or multi-layer substrate. Owing to the embedded SLR, the proposed quad-mode resonator is compact. Equivalent circuits of the proposed quad-mode resonator are analyzed in detail, and high design freedom is shown because of shifting the passband frequencies individually. Good passband selectivity and isolation of the each passband at 1.8, 2.4, 3.5, and 5.2 GHz can be well achieved due to the transmission zeros appeared near the each passband edges. Experimental results show good agreement with the simulated results.
机译:使用短负载谐振器(SLR)技术设计和制造了一种用于全球移动通信系统,无线局域网和微波接入全球互通性的新四频带通滤波器,而无需复杂的制造过程,例如通孔或多层基板。由于嵌入式SLR,所提出的四模谐振器非常紧凑。详细分析了所提出的四模式谐振器的等效电路,并且由于分别改变了通带频率,因此显示了很高的设计自由度。由于在每个通带边缘附近出现了传输零点,因此可以很好地实现1.8、2.4、3.5和5.2 GHz的每个通带的良好通带选择性和隔离。实验结果与仿真结果吻合良好。

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