Title :
Planar bandpass filter for ultrawideband communication systems
Author :
Abbosh, Amin ; Bialkowski, Marek
Author_Institution :
Sch. of ITEE, Univ. of Queensland, Brisbane, QLD, Australia
Abstract :
A broadside-coupled structure is used to build a planar bandpass filter with ultra-wideband (UWB) performance. The design is aimed at achieving a passband that covers the frequency range from 3.1 GHz to 10.6 GHz as required by the modern UWB indoor and outdoor communication systems. To achieve a wide upper stopband, a stepped impedance resonator is employed to suppress the harmonic responses outside the band of interest. The presented results confirm ultra passband performance. Furthermore, the device has a wide upper stopband that extends above 20 GHz, and. It shows a flat group delay with less than 0.1 ns peak-to-peak variation across the passband revealing a distortionless performance when operating in pulsed RF systems. The designed coupler has a compact size of 1.2 cm×1.8 cm.
Keywords :
band-pass filters; indoor radio; microwave filters; resonator filters; ultra wideband technology; UWB indoor communication systems; UWB outdoor communication systems; broadside-coupled structure; frequency 3.1 GHz to 10.6 GHz; group delay; harmonic response suppression; microwave filters; planar bandpass filter; pulsed RF systems; size 1.2 cm; size 1.8 cm; stepped impedance resonator; ultra wideband communication systems; Band pass filters; Microstrip; Microstrip filters; Microwave antennas; Passband; Radio frequency; bandpass filter; planar filter; ultrawideband filter;
Conference_Titel :
Communications and Information Technology (ICCIT), 2011 International Conference on
Conference_Location :
Aqaba
Print_ISBN :
978-1-4577-0401-7
DOI :
10.1109/ICCITECHNOL.2011.5762684
