Design of compact bandpass filter with improved selectivity using source-load coupling

被引：17
|
作者：
Dai, G. L. [1 ,2 ]
Guo, Y. X. [2 ]
Xia, M. Y. [1 ]
机构：
[1] Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China
[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117548, Singapore
来源：
ELECTRONICS LETTERS | 2010年 / 46卷 / 07期
关键词：
Resonators;
D O I：
10.1049/el.2010.2841
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：
A compact planar bandpass filter with improved selectivity using source - load coupling is proposed. The new filter consists of quarter-wavelength resonators and short-ended feedlines. An extra transmission zero is produced near the passband owing to the source load coupling, which can improve the skirt-selectivity of the filter, and quarter-wavelength resonators are used to enhance the rejection level around the second harmonic. Both simulated and measured results with good agreement are presented.
引用
收藏
页码：505 / U57
页数：2
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