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Title: Design of Microstrip Filter and Diplexer with a Multiple Harmonics Suppression for Mobile Communication
Authors: Chen, Y.-W.;Ho, Min-Hua
Contributors: 電子工程學系
Keywords: Folded line;Implanted zeroes;Multiorder harmonics suppression;Hybrid-coupling;Wide stopband
Date: 2006-09
Issue Date: 2012-05-22T06:27:02Z
Publisher: Wiley
Abstract: A folded hybrid coupled-line microstrip bandpass filter with multiple harmonics suppression and wide stopband bandwidth is proposed in this research. A simple design rule together with the usage of an over- and an under-coupled structure is adopted in this filter to eliminate the first two spurious responses from using circuit's zeros. Then, the coupled straight lines are transformed to a folded-line layout to save the circuit space and to tune the third transmission zero for the removal of an extra spurious response. An experiment is conducted for validation and good agreement between simulation and measurement is observed.
Relation: Microwave and Optical Technology Lett., 48(9): 1812-1816
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