Title :
UWB bandpass filter with broad notch band and ultra-wide upper stopband
Author :
Sarkar, Pradyut ; Koti Reddy, B.V. ; Pal, Monalisa ; Ghatak, Rowdra
Author_Institution :
ECE Dept., North Eastern Hill Univ., Shillong, India
Abstract :
A UWB band pass filter with ultra wide upper stopband is presented. A broad high selective notch band is also introduced in UWB passband to stop WLAN signals interference. The UWB filter is realized with a basic MMR structure. To achieve wide upper stop band a sharp cutoff lowpass filter is cascaded along with MMR. To eliminate WLAN signals from 5.15 to 5.5 GHz a dual mode fractal bandstop filter is realized and connected with MMR. Finally the combined structure is modified to reduce area requirement. EM simulated response of the filter shows an upper stop band extended up to 30 GHz with attenuation more than 20 dB.
Keywords :
band-pass filters; band-stop filters; microwave filters; ultra wideband technology; MMR structure; UWB bandpass filter; WLAN signals interference; broad high selective notch band; fractal bandstop filter; frequency 30 GHz; frequency 5.15 GHz to 5.5 GHz; ultra-wide upper stopband; Attenuation; Band-pass filters; Impedance; Microwave filters; Passband; Resonator filters; Wireless communication; Fractal Resonator; Lowpass Filter; Multiple Mode Resonator; Ultra Wide Band; Upper stopband;
Conference_Titel :
Microwave and RF Conference, 2013 IEEE MTT-S International
Conference_Location :
New Delhi
DOI :
10.1109/IMaRC.2013.6777717
