![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
An ultra-wideband (UWB) band-pass filter (BPF) with an electronically tunable notch-band based on defected ground structure (DGS) is investigated in this paper. The proposed UWB BPF comprises four folded shunt quarter-wavelength short-circuited stubs, one DGS and a varactor diode with dc bias. The DGS is studied and employed to generate one desired notched band. The predicted results are compared with measured data, and good agreement is reported.