NOVEL TRI-BAND BANDPASS FILTER USING STUB LOADED SHORT-ENDED RESONATOR

被引：7
|
作者：
Zhang, Xiu Yin [1 ]
Gao, Li [1 ]
Cai, Ze Yu [1 ]
Zhao, Xiao-Lan [1 ]
机构：
[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2013年 / 40卷 / 81-92期
关键词：
D O I：
10.2528/PIERL13040205
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：
This paper presents a tri-band bandpass filter (BPF) using a novel stub-loaded resonator. Different from other stub-loaded resonator, this resonator utilized a short-ended main transmission line and a centerly-loaded open stub. The resonator is theoretically analyzed. The first three resonant frequencies can be individually adjusted and this enables the convenient designs of tri-band BPFs. For demonstration, a tri-band BPF is implemented. Transmission zeros are created close to each passband edge, resulting in high skirt selectivity. Comparisons of the measured and simulated results are presented to verify the theoretical predications.
引用
收藏
页码：81 / 92
页数：12
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