| 全等宽平行耦合微带线带通滤波器的设计 |
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| 引用本文： | 王安国,林杞楠.全等宽平行耦合微带线带通滤波器的设计[J].电路与系统学报,2000,5(1):43-47. |
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| 作者姓名： | 王安国 林杞楠 |
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| 作者单位： | 天津大学电子信息工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金!（No. 69332011） |
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| 摘 要： | 半波长平行耦合微带线带通滤波器由于其结构紧凑,第二通带的中心频率3倍于主通带中心频率,因而在微波集成电路中获得广泛应用。本文提出一种新的设计方法：耦合线节级联直接设计法。这一方法比传统设计方法简便,适用相对带宽范围较宽,为30～80%,而且可以采用全等宽耦合线,因而滤波器结构简洁。
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| 关 键 词： | 平行耦合线 微带线 带通滤波器 设计 |
| 文章编号： | 1007-0249(2000)01-0043-04 |
| 修稿时间： | 1999年4月26日 |
A Design Procedure for Band-pass Filter Using Parallel Coupled Microstrip Lines with Equal Width |
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| WANG An-guo,LIN Qi-nan.A Design Procedure for Band-pass Filter Using Parallel Coupled Microstrip Lines with Equal Width[J].Journal of Circuits and Systems,2000,5(1):43-47. |
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| Authors: | WANG An-guo LIN Qi-nan |
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| Abstract: | The band-pass filter using half- wavelength parallel coupled microstrip lines has been widely used in microwave integrated circuit for its compact structure and its center frequency of second pass-band being triple of principal pass-band. A new design method called "direct design by cascading coupled microstrip sections" is presented in this paper. Compared with the conventional design procedure, the proposed method is more convenient and applicable for 30%~80% fractional bandwidth. By means of the new method, the coupled microstrip lines with all-equal width can be used in the design of filters with concise structure. |
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| Keywords: | Parallel coupled lines Half-wavelength resonator Microstrip band-pass filter |
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