Split-Type Quad-Band Bandpass Filter With Quarter-Wavelength Resonators

被引:0
作者
Ai, Jing [1 ]
Da Xu, Kai [2 ,3 ]
Zhang, Yong Hong [1 ]
机构
[1] Univ Elect Sci & Technol China, EHF Key Lab Sci, Chengdu 611731, Peoples R China
[2] Xiamen Univ, Inst Electromagnet & Acoust, Xiamen 361005, Peoples R China
[3] Xiamen Univ, Dept Elect Sci, Xiamen 361005, Peoples R China
来源
2015 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC), VOLS 1-3 | 2015年
关键词
DESIGN;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, a split-type sharp rejection microstrip quad-band bandpass filter (BPF) with lambda/4 resonators has been presented. Two split-type dual-band BPFs are studied and combined to form quad-band responses. The quadruplet coupling topology is introduced to generate source-load coupling, resulting in one pair of transmission zeros at each side of all the four passbands. Eventually, a quad-band BPF centered at 2.1, 2.4, 3.9 and 4.5 GHz with respectively fractional bandwidths of 8.5%, 3.4%, 5.5% and 4.9% has been designed and implemented, whose measured results provide a good verification for the simulated ones.
引用
收藏
页数:3
相关论文
共 12 条