Abstract
In this paper, an ultra-wideband microstrip bandpass filter (BPF) which operates from 2 GHz to 4.7 GHz, with high selectivity and wide rejection band is presented and experimentally verified. The filter is composed of microstrip lines with shorted stubs acting as a high pass filter (HPF) on top side and dumbbell shaped defected ground structures (DGSs) on bottom side acting as a low pass filter (LPF). The seventh order high pass filter structures and three dumbbell shaped DGS resonators combined on a single layer microstrip substrate are optimized using microwave circuit and electromagnetic (EM) simulation tools to obtain the ultra-wideband bandpass filter. The designed compact filter has 0.9 dB max insertion loss in-band, no harmonics are observed up to and above 12 GHz and finally, it has a good selectivity. The designed hybrid circuit is a production friendly and low cost bandpass filter which has a controllable pass- and rejection band nature.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
