Open AccessA compact ultra wideband bandpass filter using arrow coupled lines with defected ground structure
Author(s) -
Deena A. Salem,
Ashraf S. Mohra,
A. Sebak
Publication year - 2014
Publication title -
journal of electrical systems and information technology
Language(s) - English
Resource type - Journals
ISSN - 2314-7172
DOI - 10.1016/j.jesit.2014.03.001
Subject(s) - passband , band pass filter , hfss , filter (signal processing) , wideband , elliptic filter , electronic engineering , butterworth filter , high pass filter , acoustics , band stop filter , physics , computer science , electrical engineering , low pass filter , engineering , microstrip antenna , antenna (radio)
A new ultra wideband bandpass filter (UWB-BPF) using arrow coupled lines and U-slot defected ground structures (U-DGS) is proposed. The input and output feeding lines are connected to the coupled lines placed on the conductor side of the substrate while the U-slot DGS was etched from the ground side below. The effect of U-DGS slot dimensions on the operating bandpass of the filter was studied. The filter was simulated using both IE3D and HFSS simulators. The simulation results are in good agreement with the realized filter. The filter operating passband extended over the UWB frequency 3.0–9.5GHz while the group delay variation in the passband is in the range of 0.5°