| 新型小型化超宽上阻带双频带通滤波器的设计 |
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| 引用本文： | 张瑞,周希朗,范海军.新型小型化超宽上阻带双频带通滤波器的设计[J].价值工程,2012(12):187. |
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| 作者姓名： | 张瑞 周希朗 范海军 |
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| 作者单位： | 上海交通大学射频与微波技术研究中心,上海,200240 |
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| 摘 要： | 本文使用并联短截线结构获得5.7GHZ的通带,再引入SIR谐振器结构,获得2.4GHZ的通带。SIR谐振器耦合作用到微带传输结构上,所以,两种谐振结构相互独立,能方便的调整两个通带的中心频点。此外,两种谐振结构在阻带上相互抑制,获得极宽的上阻带性能。本文在输入、输出端口附近又引入并联短截线,使得上阻带性能更加优异。最终测量结果和仿真结果吻合。
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| 关 键 词： | 双频滤波器 带通滤波器 并联短截线 阶跃阻抗谐振器 |
A Novel Compact Ultra Wideband Upper-stopband Dual-band Bandpass Filter |
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| Zhang Rui
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Zhou Xilang
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Fan Haijun.A Novel Compact Ultra Wideband Upper-stopband Dual-band Bandpass Filter[J].Value Engineering,2012(12):187. |
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| Authors: | Zhang Rui Zhou Xilang Fan Haijun |
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| Institution: | Zhang Rui;Zhou Xilang;Fan Haijun(Center for Microwave and RF Technologies,Shanghai Jiao Tong University,Shanghai 200240,China) |
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| Abstract: | In this paper,we get a dual-band microstrip band pass filter,which are 2.4GHZ and 5.7GHZ,with shunt stub and SIR structures.The SIR resonators are parallel to the microstrip structures,so two kinds of resonators are separate and the center frequencies can be easily adjusted.Besides,we can get ultra wide upper-stopband.The shunt stub is induced near the input and output port to get better stopband performance.Finally,the measured results validate the proposed design. |
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| Keywords: | dual-band filter bandpass filter shunt stub stepped impedance resonator |
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