Proceedings of the 2nd International Conference on Soft Computing in Information Communication Technology

Wideband Bandpass Filter with Excellent Selectivity Using Anti-coupled Line

Authors
Liming Liang, Shulan Li, Yuanan Liu, Cuiping Yu
Corresponding Author
Liming Liang
Available Online May 2014.
DOI
https://doi.org/10.2991/scict-14.2014.16How to use a DOI?
Keywords
anti-coupled line; bandpass filter; transmission zeros; rejection bandwidth; skirt selectivity
Abstract
A simple anti-coupled line circuit configuration is proposed to design wideband bandpass filter with sharp skirt selectivity in this paper. Good skirt selectivity can be achieved with two transmission zeros near the passband. The location of transmission zeros and bandwidth of passband can be adjusted by changing the impedance of the configuration. A compact wideband bandpass filter prototype with 20 dB rejection bandwidth of 61.4% is designed and fabricated. In order to further improve the skirt selectivity and stopband rejection level, two identical filter prototypes were directly cascaded. The cascaded filter exhibits a competitive attenuation slope of 262.2 and 75.9 dB/GHz in the lower and upper passband transitions, respectively.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Cite this article

TY  - CONF
AU  - Liming Liang
AU  - Shulan Li
AU  - Yuanan Liu
AU  - Cuiping Yu
PY  - 2014/05
DA  - 2014/05
TI  - Wideband Bandpass Filter with Excellent Selectivity Using Anti-coupled Line
BT  - Proceedings of the 2nd International Conference on Soft Computing in Information Communication Technology
PB  - Atlantis Press
SP  - 64
EP  - 66
SN  - 1951-6851
UR  - https://doi.org/10.2991/scict-14.2014.16
DO  - https://doi.org/10.2991/scict-14.2014.16
ID  - Liang2014/05
ER  -