Title :
Ultra-wideband bandpass filter on aperture-backed microstrip line
Author :
Zhu, L. ; Wang, H.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A novel ultra-wideband (UWB) bandpass filter is proposed on an aperture-backed microstrip line. With an aperture on the ground, a non-uniform resonator is constructed with the first three resonant modes occurring within the UWB band while the parallel coupling between resonator and feeders is largely enhanced. The designed filter exhibits good UWB passband behaviour with insertion loss <1.0 dB and group delay variation <0.25 ns.
Keywords :
band-pass filters; microstrip lines; microstrip resonators; ultra wideband technology; aperture-backed microstrip line; feeders; group delay; insertion loss; nonuniform resonator; parallel coupling; resonant modes; ultra-wideband bandpass filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20052317
