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Synthesis Method of Lumped Dual–Band Filters with Controllable Bandwidths

机译：带宽可控制的集总双频滤波器的合成方法

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摘要

This article presents a synthesis method for lumped dual-band filters byrndirectly adopting traditional Pi-shaped and U-shaped capacitive networks as dual-mode admittancerninverters (J inverters). By following classic coupled-resonator filter theory, the equivalentrncircuits (parallel LCs) of the dual-mode resonators between the J inverters are derivedrnseparately at the two passbands. Each dual-mode resonator is first approximately constructedrnwith a series combination of the two parallel lumped circuit (LC) resonators, and then the elementrnvalues are iteratively updated for better accuracy. A design example is given and goodrnagreement is achieved between the simulated and measured results, demonstrating the feasibilityrnof the synthesis method. The passband bandwidths are fully controllable.
机译：本文提出了一种集总双带滤波器的合成方法，该方法直接采用传统的Pi形和U形电容网络作为双模导纳逆变器（J逆变器）。通过遵循经典的耦合谐振器滤波器理论，分别在两个通带处得出了J个反相器之间的双模谐振器的等效电路（并联LC）。每个双模谐振器首先大约由两个并联集总电路（LC）谐振器的串联组合构成，然后迭代更新元素值以提高精度。给出了设计实例，并在仿真结果和实测结果之间达成了共识，证明了该综合方法的可行性。通带带宽是完全可控的。

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    Yun Liu; Yao Chen; Xiyang Miao; Chenwei Cui; Yijun Tang;

  • 作者单位

    Key Laboratory of Radar Imaging and Microwave Photonics (Nanjing Univ. Aeronaut. Astronaut.),Ministry of Education, College of Electronic and Information Engineering, Nanjing University ofAeronautics and Astronautics, Nanjing 210016, China;

    Key Laboratory of Radar Imaging and Microwave Photonics (Nanjing Univ. Aeronaut. Astronaut.),Ministry of Education, College of Electronic and Information Engineering, Nanjing University ofAeronautics and Astronautics, Nanjing 210016, China;

    Key Laboratory of Radar Imaging and Microwave Photonics (Nanjing Univ. Aeronaut. Astronaut.),Ministry of Education, College of Electronic and Information Engineering, Nanjing University ofAeronautics and Astronautics, Nanjing 210016, China;

    Key Laboratory of Radar Imaging and Microwave Photonics (Nanjing Univ. Aeronaut. Astronaut.),Ministry of Education, College of Electronic and Information Engineering, Nanjing University ofAeronautics and Astronautics, Nanjing 210016, China;

    Key Laboratory of Radar Imaging and Microwave Photonics (Nanjing Univ. Aeronaut. Astronaut.),Ministry of Education, College of Electronic and Information Engineering, Nanjing University ofAeronautics and Astronautics, Nanjing 210016, China;

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  • 正文语种 eng
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  • 关键词

    lumped dual-band filter; dual-mode J inverter; controllable bandwidths;

    机译：集总双频滤波器双模J逆变器;可控带宽;

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