Title :
Compact UWB Bandpass Filter With Dual Notch Bands Using Open Circuited Stubs
Author :
Sarkar, Pankaj ; Ghatak, Rowdra ; Pal, Manimala ; Poddar, D.R.
Author_Institution :
Electron. & Commun. Eng. Dept., Nat. Inst. of Technol. Sikkim, Ravangla, India
Abstract :
In this letter, an ultra-wideband (UWB) bandpasss filter with multiple notch bands is presented. The UWB bandpass characteristic is achieved using a modified distributed highpass filter (HPF) and suppressing higher order harmonics of the HPF by realizing defected stepped impedance resonator. The dual band notches at 5.75 and 8.05 GHz are obtained by embedding two open stubs on the main microstrip line. The in band and out of band performance obtained from fullwave electromagnetic simulation, equivalent circuit model and measurement are in good agreement.
Keywords :
band-pass filters; equivalent circuits; harmonics suppression; high-pass filters; microstrip lines; microwave filters; microwave resonators; notch filters; resonator filters; ultra wideband technology; HPF; UWB band-pass characteristic; compact UWB band-pass filter; defected stepped impedance resonator; dual notch bands; equivalent circuit model; frequency 5.75 GHz; frequency 8.05 GHz; full-wave electromagnetic simulation; higher order harmonics suppression; microstrip line; modified distributed high-pass filter; multiple notch bands; open circuited stubs; ultrawideband band-pass filter; Band pass filters; Equivalent circuits; Impedance; Integrated circuit modeling; Microstrip; Ultra wideband technology; Wireless communication; Defected stepped impedance resonator (SIR); dual notch-band; open circuited stub; ultrawideband bandpass filter (UWB BPF);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2012.2210395
