| 新型微带抽头式发夹型带通滤波器的设计* |
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| 引用本文： | 万君磊,潘明海.新型微带抽头式发夹型带通滤波器的设计*[J].微波学报,2015,31(4):55-59. |
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| 作者姓名： | 万君磊 潘明海 |
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| 作者单位： | (雷达成像与微波光子技术教育部重点实验室南京航空航天大学电子信息工程学院,南京210016 ) |
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| 基金项目： | 国家自然科学基金(61071164,61271327);江苏高校优势学科建设工程项目 |
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| 摘 要： | 利用ADS(Advanced Design System)软件设计、研究了一种新型的微带抽头式发夹型带通滤波器。该
滤波器工作在S 波段,相比较于传统的微带抽头式发夹型带通滤波器,该滤波器在信号的输入输出端各加入了一段
四分之一波长的开路微带线,很好地抑制了邻近的寄生通带,使滤波器具有了良好的阻带特性。同时在该滤波器的
谐振单元间并联了一段长度为λ / 2 的微带线,在该滤波器通带两侧增加了一对传输零点,使滤波器的选择性得到
了极大的优化。最后还对所设计的新型滤波器进行了实物加工和测试,测试结果和仿真结果吻合较好。
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| 关 键 词： | 带通滤波器 微带线 高选择性 |
Design of a New Microstrip Hairpin Bandpass Filter |
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| WAN Jun-lei,PAN Ming-hai.Design of a New Microstrip Hairpin Bandpass Filter[J].Journal of Microwaves,2015,31(4):55-59. |
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| Authors: | WAN Jun-lei PAN Ming-hai |
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| Affiliation: | (Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education,
College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China) |
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| Abstract: | This paper studies a new microstrip hairpin bandpass filter by using ADS (Advanced Design System). The
filter is used in Sband. Compared to the conventional microstrip hairpin bandpass filter, microstrip lines of a quarter wavelength are added in both input and output of the filter, which provides great suppression of parasitic passband. A microstrip
line is also added between non-adjacent resonators of the hairpin bandpass filter, which makes the filter has a pair of transmission zeros around the passband. Finally, the designed filter is made for testing, and the testing results show a good agreement with the simulated results. |
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| Keywords: | bandpass filter microstrip line high selectivity |
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