Title :
Miniaturized lumped-distributed narrowband ring filter design
Author :
Suwanbunyaporn, Ratthaya ; Jirathiticharoen, Amornthep ; Phromloungsri, Ravee ; Chongcheawchamnan, Mitchai
Author_Institution :
Res. Center of Electromagn. Wave Applic., Mahanakorn Univ. of Technol., Bangkok
Abstract :
A miniaturized narrowband bandpass filter with wide stopband is needed for communication application, therefore a microstrip inductive-compensated coupling-fed ring bandpass filter with a lumped lowpass filterd in loop resonator is proposed. Simple equations for filter design procedure are derived based on ideal transmission line model. To confirm the technique, a narrowband bandpass filter operated at 2.4 GHz with a 5% bandwidth and wide stopband is designed. Simulated and experimental results of the design are performed to validate the technique proposed.
Keywords :
band-pass filters; microstrip filters; resonator filters; frequency 2.4 GHz; loop resonator; lumped lowpass filter; lumped-distributed narrowband ring filter; microstrip inductive-compensated coupling-fed ring bandpass filter; ring bandpass filter; Band pass filters; Bandwidth; Feeds; Low pass filters; Microstrip filters; Microstrip resonators; Narrowband; Optical ring resonators; Passband; Resonator filters; Lowpass filter; Parallel-coupled lines; Ring bandpass filter; coupled line resonator; microstrip;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2008. ECTI-CON 2008. 5th International Conference on
Conference_Location :
Krabi
Print_ISBN :
978-1-4244-2101-5
Electronic_ISBN :
978-1-4244-2102-2
DOI :
10.1109/ECTICON.2008.4600416
