Design of the compact parallel coupled wideband bandpass filter with very high selectivity and wide stopband

被引:28
作者
Hung, Cheng-Yuan [1 ]
Weng, Min-Hang
Yang, Ru-Yuan
Su, Yan-Kuin
机构
[1] Natl Cheng Kung Univ, Dept Elect Engn, Inst Microelect, Adv Optoelect Technol Ctr, Tainan 701, Taiwan
[2] Natl Nano Device Labs, Tainan 74147, Taiwan
关键词
attenuation poles; bandwidth; parallel coupled line (PCL); passband;
D O I
10.1109/LMWC.2007.899312
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 letter, a compact and high performance parallel coupled line wideband bandpass filter (PCL-WBF) with open stubs is designed and implemented on the commercial substrate, RT/Duroid 5880. The PCL-WBF is composed of a one-stage coupled line and two open stubs connected near the input/output ports. The design procedure and limit are discussed in detail. The designed filter was fabricated and measured,, showing good characteristics of wide stopband and very high passband selectivity. Measured results also have a good agreement with the simulated results.
引用
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页码:510 / 512
页数:3
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