UWB BANDPASS FILTER BASED ON RING RESONATOR

被引：6
作者：
Oh, Sangyeol [1 ]
Song, Junhyop [2 ]
Lee, Jaehoon [1 ]
机构：
[1] Korea Univ, Dept Radio Engn, Seoul 136701, South Korea
[2] Samsung Elect, Hwasung Si 445701, Gyeonggi Do, South Korea
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2013年 / 55卷 / 09期
基金：
新加坡国家研究基金会;
关键词：
bandpass filters; resonator filters; ultra wide band; wideband; ring resonator;
D O I：
10.1002/mop.27780
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 new ultra-wideband bandpass filter is proposed, with a ring resonator and two stepped-impedance stubs to provide good wideband filtering performance and sharp rejection skirts. Interdigital coupled lines are placed at both ends of the ring resonator as input and output feed lines. The use of interdigital coupled lines makes it possible for the first three resonances of the ring resonator to be closer to wideband characteristics. By cutting apertures in the ground plane under the interdigital coupled lines, the coupling effect between the feed lines and the ring resonator can be increased, so that the passband characteristics can be improved. By adding two stepped-impedance stubs to the ring resonator, sharp rejection skirts can be obtained in the passband. (c) 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2047-2051, 2013
引用
收藏
页码：2047 / 2051
页数：5
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