High-selectivity wideband bandpass filter using quarter-wave coupled lines and quarter-wave series transformers

2014 ◽  
Vol 56 (6) ◽  
pp. 1418-1421 ◽  
Author(s):  
Xiao-Hu Wu ◽  
Qing-Xin Chu
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Coupled Lines ◽  
Quarter Wave

High selectivity seventh‐order wideband bandpass filter using coupled lines and open/shorted stubs

2018 ◽  
Vol 54 (4) ◽  
pp. 223-225 ◽  
Author(s):  
Kai Da Xu ◽  
Fengyu Zhang ◽  
Yanhui Liu ◽  
Wei Nie
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Coupled Lines ◽  
Seventh Order

A dual-wideband bandpass filter using open/shorted coupled lines

2018 ◽  
Vol 10 (10) ◽  
pp. 1113-1117
Author(s):  
Xiao-Le Bo ◽  
Yong-Hong Zhang ◽  
Xiao-Kun Li ◽  
Yang Yang ◽  
Yin Tian ◽  
...  
Keyword(s):  
Insertion Loss ◽  
High Selectivity ◽  
Bandpass Filter ◽  
Wide Bandwidth ◽  
Adjustment Method ◽  
Transmission Zero ◽  
Folded Structure ◽  
Coupled Lines ◽  
Low Insertion Loss ◽  
Adjustable Range

AbstractA compact dual-wideband (DWB) bandpass filter utilizing open-shorted coupled lines (OSCL) is proposed in this paper. The introduction of the folded structure not only reduces the overall size but also contribute to the split of the transmission zero (TZ), which improves the selectivity effectively. Six transmission poles and five TZs are realized utilizing the shorted-circuit stub and OSCL. The characteristic of the flexible adjustment method of TZs guarantees an independently wide adjustable range of the bandwidth. For demonstration, a DWB filter (3 dB bandwidth 120 and 28%, respectively) is designed and fabricated. The filter is compact and has the characteristics of extraordinary wide bandwidth, low insertion loss, as well as high selectivity.

HIGH SELECTIVITY DUAL-MODE BANDPASS FILTER WITH SOURCE-LOADED COUPLING

2010 ◽  
Vol 18 ◽  
pp. 187-194 ◽  
Author(s):  
Xue-Shun Zhang ◽  
Yong-Jiu Zhao ◽  
Hong-Wei Deng ◽  
Lu Zhang ◽  
Wen Chen
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Dual Mode
Sign in / Sign up

Export Citation Format

Share Document