A dual-mode bandpass filter with enhanced capacitive perturbation

Boon Tiong Tan Boon Tiong Tan,Siou Teck Chew Siou Teck Chew,Ban Leong Ooi Ban Leong Ooi,Mook Seng Leong Mook Seng Leong

doi:10.1109/tmtt.2003.815264

A dual-mode bandpass filter with enhanced capacitive perturbation

Boon Tiong Tan Boon Tiong Tan, Siou Teck Chew Siou Teck Chew + Show 2 more

https://doi.org/10.1109/tmtt.2003.815264

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Journal: IEEE transactions on microwave theory and techniques	Publication Date: Aug 1, 2003
Citations: 24

Affiliation: DSO National Laboratories, National University of Singapore

#Dual-mode Bandpass Filter #Dual-mode Ring Bandpass Filter + Show 8 more

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Abstract

A dual-mode ring bandpass filter with two pairs of capacitors has been designed. The capacitors are used to control the location of the even- and odd-mode frequencies independently, allowing weak coupling for narrow-band filter design with realizable capacitance values. Theoretical expressions have been derived for these frequencies. A 4% bandwidth bandpass filter centered at 1.9 GHz was designed and tested with good agreement between theoretical and measured results.

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