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2016-12-16
High Selectivity Wideband Bandpass Filter Based on Transversal Signal-Interaction Concepts Loaded with Open and Shorted Stubs
By
Progress In Electromagnetics Research Letters, Vol. 64, 133-139, 2016
Abstract
A new design of high selectivity wideband bandpass filter based on transversal signal-interaction concepts loaded with open and shorted stubs is proposed in this paper. Two transmission paths are used to realize signal transmission. Path 1 is composed of a T-shaped structure with shorted stub, and Path 2 consists of two open coupled lines loaded with open stubs. A wide five-order passband and high selectivity stopband with four transmission zeros can be achieved in the proposed filter. Finally, a wideband bandpass filter operating at 3 GHz with 3-dB fractional bandwidth of 83.3% (1.55 to 4.05 GHz) is designed, fabricated, and measured. Good agreement between the simulation and experiment is obtained.
Citation
Liwei Cui, Weimin Wang, Zheng Zhuang, Shulan Li, Yongle Wu, and Yuan'an Liu, "High Selectivity Wideband Bandpass Filter Based on Transversal Signal-Interaction Concepts Loaded with Open and Shorted Stubs," Progress In Electromagnetics Research Letters, Vol. 64, 133-139, 2016.
doi:10.2528/PIERL16101502
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