| 新型多阶跃枝节加载双频带通滤波器 |
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| 引用本文： | 黄春艳,肖中银,寇鑫,储君君,李好.新型多阶跃枝节加载双频带通滤波器[J].上海大学学报(自然科学版),2012,18(5):459-463. |
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| 作者姓名： | 黄春艳 肖中银 寇鑫 储君君 李好 |
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| 作者单位： | 上海大学 特种光纤与光接入网省部共建重点实验室，上海 200072 |
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| 基金项目： | 国家自然科学基金资助项目（61077068）:上海市自然科学基金资助项目（10ZR1411900）:上海市重点学科建设资助项目(S30108);上海市科委重点实验室资助项目(08DZ2231100) |
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| 摘 要： | 提出一种新型的、各中心频率可调的多阶跃枝节加载双频滤波器，该微带双频滤波器采用多阶跃阻抗结构，通过增加更多的自由度来调节中心频率.由于谐振器为对称结构，所以采用传统的奇-偶模分析方法.通过调整阶跃阻抗的阻抗比和电长度，可以很容易获得一个可独立调节各个中心频率的双频滤波器.该滤波器工作在2.44 GHz（WLAN）和3.50 GHz(WiMAX)这两个频段，3 dB相对带宽分别为6%和2.6%，测试结果和仿真结果基本吻合.
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| 关 键 词： | 带通滤波器 阶跃枝节加载 奇-偶模 双频 |
| 收稿时间： | 2011-11-09 |
Dual-Band Bandpass Filter Using Stub-Loaded Multiple Stepped-Impedance Resonators |
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| HUANG Chun-yan,XIAO Zhong-yin,KOU Xin,CHU Jun-jun,LI Hao.Dual-Band Bandpass Filter Using Stub-Loaded Multiple Stepped-Impedance Resonators[J].Journal of Shanghai University(Natural Science),2012,18(5):459-463. |
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| Authors: | HUANG Chun-yan XIAO Zhong-yin KOU Xin CHU Jun-jun LI Hao |
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| Institution: | Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072, China |
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| Abstract: | A novel dual-band filter using stub-loaded multiple stepped-impedance resonators is proposed. This filter can control each center frequency independently. In order to get more degrees of freedom, the microstrip filter uses a multiple stepped-impedance structure. Due to symmetry of the structure, the traditional even-odd mode analysis can be used. A dual-band filter can easily be obtained by adjusting the impedance ratio and electrical length. The dual-band filter with 3 dB relative bandwidths of 6% and 2.6% can be applied to 2.44 GHz (WLAN) and 3.50 GHz (WiMAX), respectively. Simulation results agree well with measurements. |
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| Keywords: | bandpass filter (BPF) dual-band even-odd mode stepped stub-loaded |
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