DESIGN OF COMPACT WIDEBAND HIGH-SELECTIVITY BAND-STOP FILTER BASED ON COUPLED LINES | Zendy

M. Sadasiva Rao | Zendy; Yongle Wu | Zendy; Weimin Wang | Zendy; Yuanan Liu | Zendy

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DESIGN OF COMPACT WIDEBAND HIGH-SELECTIVITY BAND-STOP FILTER BASED ON COUPLED LINES

Author(s) -

M. Sadasiva Rao,

Yongle Wu,

Weimin Wang,

Yuanan Liu

Publication year - 2014

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc14071806

Subject(s) - wideband , selectivity , filter (signal processing) , electronic engineering , electrical engineering , engineering , chemistry , biochemistry , catalysis

In this paper, a compact band-stop filter with a wideband and high-selectivity performance is proposed and analyzed. This band-stop filter includes two parallel-coupled lines of different electrical lengths and two open-circuit stubs. A lossless transmission line model is used to obtain the filter design parameters. In order to verify this new filter circuit structure and its corresponding design theory, five groups of numerical examples are demonstrated. Finally, a practical band-stop filter with a 3-dB cutoff frequency bandwidth of 58.2% centered at 0.94 GHz has been designed, simulated and measured. The measured results show a good agreement with the simulated responses.

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