Title :
Aperture-backed microstrip line multiple-mode resonator for design of a novel UWB bandpass filter
Author :
Wang, Hang ; Zhu, Lei
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A novel ultra-wideband (UWB) bandpass filter is proposed, designed and implemented using an aperture-backed microstrip line multiple-mode resonator. With a backside aperture on ground plane, a nonuniform resonator is constructed with the first three resonant modes occurring within the interested UWB band while the parallel coupling between a resonator and two feed lines gets a large enhancement. The designed and fabricated UWB filter exhibits a good UWB passband behavior with insertion loss < 1.0dB and group delay variation < 0.25ns in both theory and experiment.
Keywords :
band-pass filters; microstrip lines; resonators; ultra wideband technology; UWB bandpass filter; aperture-backed microstrip line; multiple-mode resonator; nonuniform resonator; parallel coupling; parallel-coupled microstrip line; ultra wideband passband behavior; ultra-wideband bandpass filter; Apertures; Band pass filters; Feeds; Filtering theory; Microstrip filters; Microstrip resonators; Passband; Resonance; Resonator filters; Ultra wideband technology; UWB bandpass filter; Ultra-wideband (UWB); aperture-backed microstrip line; multiple-mode resonator; parallel-coupled microstrip line;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606781
