NDLI: Compact bandpass filter with wide stopband utilizing modified anti-parallel coupled-lines

Content Provider	IEEE Xplore Digital Library
Author	Lingang Wang Long Jin
Copyright Year	2013
Description	Author affiliation: Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China (Lingang Wang; Long Jin)
Abstract	A novel bandpass filter with a wide stopband is presented. The proposed filter mainly consists of modified anti-parallel coupled-lines and four open circuited stubs, which can generate multiple transmission zeros at the lower and upper stopbands. Therefore, a wide stopband characteristic can be achieved. The central frequency of this proposed filter, which is implemented on Roges 4350 substrate, is at 2.5 GHz with an insertion loss of less than 1.8 dB and a 3 dB bandwidth of 4%. Good suppressing of more than 28 dB is obtained in lower stopband from DC to 2.3 GHz, and the upper stopband has larger than 18 dB rejection in the range of 2.7 GHz to 10 GHz. Measured results show a good agreement with simulated results.
Sponsorship	IEEE Chengdu Sect.
Starting Page	237
Ending Page	240
File Size	1051762
Page Count	4
File Format	PDF
ISBN	9781467355049
DOI	10.1109/MMWCST.2013.6814617
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-24
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Bandpass filter Resonator filters Wide stopband Distance measurement Multiple transmission zeros Equations
Content Type	Text
Resource Type	Article

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