Title :
High selectivity wideband differential bandpass filter with wideband common mode suppression using Marchand balun
Author :
Wenjie Feng ; Wenquan Che ; Quan Xue
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
A novel compact high selectivity wideband differential bandpass filter with wideband common mode suppression using Marchand balun is presented in this paper. Open/shorted coupled lines and stubs are used to improve the selectivity for the differential mode and common mode suppression. The demonstrated filter with a compact size of 24 mm × 12 mm exhibits a fractional bandwidth of 53% centered at 3.0 GHz and 13 dB common-mode suppression from 0 to 9 GHz (3f0).
Keywords :
baluns; band-pass filters; microstrip filters; resonators; Marchand balun; compact high selectivity wideband differential bandpass filter; differential mode suppression; open coupled lines; shorted coupled lines; stubs; wideband common mode suppression; Band-pass filters; Impedance; Impedance matching; Microstrip filters; Resonator filters; Transversal filters; Wideband; Marchand balun; differential filter; differential/common mode;
Conference_Titel :
Wireless Symposium (IWS), 2014 IEEE International
Conference_Location :
X´ian
DOI :
10.1109/IEEE-IWS.2014.6864180
