Ultra-Wideband (UWB) Microstrip Bandpass Filters with Improved Upper-Stopband and Miniaturized Size

被引：0
|
作者：
Wong, Sai Wai [1 ]
Zhu, Lei [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore, Singapore
来源：
2007 ASIA PACIFIC MICROWAVE CONFERENCE, VOLS 1-5 | 2007年
关键词：
UWB bandpass filter; microstrip line; wide upper stopband; multiple-mode resonator;
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：
An ultra-wideband (UWB) microstrip bandpass filter with improved upper-stopband and miniaturized size is presented. A modified multiple-mode resonator is formed by transversely attaching three pairs of non-uniform and folded stubs. Its configuration is then investigated, aiming to allocate the first three resonant frequencies within 3.1-10.6 GHz band while suppressing spurious harmonies at the upper-stopband. Plus, its high-impedance sections in two sides are linked with two feed tines via interdigital coupled tines, leading to make up an initial UWB filter. Then, two-stage UWB bandpass filter is constructed to sharpen the rejection skirt and deepen the upper-stopband. Finally, two filters are optimized, fabricated and measured to give us an evident confirmation on the improved UWB performance.
引用
收藏
页码：2496 / 2499
页数：4
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