DocumentCode
752116
Title
A dual-mode bandpass filter with enhanced capacitive perturbation
Author
Tan, Boon Tiong ; Chew, Siou Teck ; Leong, Mook Seng ; Ooi, Ban Leong
Author_Institution
DSO Nat. Labs., Singapore
Volume
51
Issue
8
fYear
2003
Firstpage
1906
Lastpage
1910
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.
Keywords
Q-factor; UHF filters; band-pass filters; equivalent circuits; passive filters; resonator filters; 1.9 GHz; capacitor pairs; dual-mode bandpass filter; even-mode frequencies; narrow-band filter design; odd-mode frequencies; ring bandpass filter; Band pass filters; Capacitance; Capacitors; Dielectric measurements; Frequency; Microstrip resonators; Narrowband; Optical ring resonators; Resonance; Resonator filters;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/TMTT.2003.815264
Filename
1215669
Link To Document