重庆邮电大学学报（自然科学版）2017，Vol.29Issue(6)：763-767,5.DOI:10.3979/j.issn.1673-825X.2017.06.009
基于金属化通孔耦合的带宽增强梳状滤波器
Bandwidth-enhanced combline filter based on metallic via coupling
摘要
Abstract
In this paper,a novel bandwidth-enhanced combline filter based on via coupling mechanism is proposed.The novelty of this design lies in the incorporation of via coupling into combline structure.With the same dimensions of the coupling gaps,the coupling coefficientce of the proposed structure can be greatly enhanced as compared with the traditional combline structure so that the bandwidth of the proposed structure can be widened.Meanwhile,investigation shows that via coupling mechanism reveals better fabrication tolerance than the traditional gap coupling mechanism.For demonstration,a bandwidth-enhanced combline filter and a traditional one are both designed,fabricated and measured.The simulated and measured results are presented,showing good consistency.The fractional bandwidth of the proposed combline filter is 17％,while that of the traditional one is only 5％.关键词
孔耦合/梳状滤波器/带宽增强Key words
via coupling/combline filter/bandwidth enhancement分类
信息技术与安全科学引用本文复制引用
蔡璟,秦伟,陈建新..基于金属化通孔耦合的带宽增强梳状滤波器[J].重庆邮电大学学报（自然科学版）,2017,29(6):763-767,5.基金项目
江苏省普通高校学术学位研究生创新计划项目(KYLX16_0971) （KYLX16_0971）
国家自然科学基金(61501263)The Graduate Research and Innovation Plan Project of the Universities of Jiangsu Province (KYLX16_0971) （61501263）
The National Natural Science Foundation of China (61501263) （61501263）
