电子器件2016，Vol.39Issue(5)：1059-1062,4.DOI:10.3969/j.issn.1005-9490.2016.05.008
结构紧凑的高选择性宽带带通滤波器
Compact Wideband Bandpass Filters with High Selectivity
钱颖 1张凤娟 1靳静2
作者信息
- 1. 无锡科技职业学院电子技术学院，江苏无锡214028
- 2. 中国电子科技集团第五十五研究所，南京210016
- 折叠
摘要
Abstract
To achieve compact and highly selective wideband filter,on the basis of the traditional parallel coupled line structure,we make the appropriate improvements. Three novel coupled line structures are designed. All struc⁃tures exhibit a wideband response to three transmission zeros and two of them are close to the upper and lower edges of the passband. One filter has been designed,fabricated and measured. The operating frequency of filter is 2.6 GHz,3 dB fractional bandwidth(FBW)of the filter is 63%,transmission zeros are located at 1.46 GHz,3.77 GHz and 5.13 GHz respectively. The filter is designed on a Rogers 4003 dielectric substrate and the thickness of filter is 0.813 mm. Good agreement between the measured results and simulation ones is obtained,verifying the validity of structures.关键词
宽带带通滤波器/三线耦合结构/奇偶模分析法/阶梯阻抗谐振器/传输零点Key words
wideband bandpass filter/three coupled line structure/the even-odd-mode analysis/stepped imped-ance resonator(SIR)/transmission zeros分类
信息技术与安全科学引用本文复制引用
钱颖,张凤娟,靳静..结构紧凑的高选择性宽带带通滤波器[J].电子器件,2016,39(5):1059-1062,4.
