Title :
A microstrip ultra-wideband differential filter with shorted parallel coupled-line
Author :
Shi, Suyang ; Feng, Wenjie ; Che, Wenquan ; Xue, Quan
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, a novel microstrip differential filter with shorted parallel coupled-line is proposed. Based on the transversal signal-interference concept, a passband can be achieved when the differential mode signal is excited, while a stopband can be obtained when the common mode signal is excited. The proposed differential filter was analyzed and simulated. A prototype is fabricated for demonstration of the design strategies. The measured results show that the differential mode signals have ultra-wideband response with 10 dB fractional bandwidth of 110%, while the common mode signals are suppressed in the whole frequency band. Good agreement can be observed between the simulation and measurement.
Keywords :
interference (signal); microstrip filters; ultra wideband technology; differential mode signals; microstrip ultra-wideband differential filter; shorted parallel coupled-line; transversal signal-interference concept; ultra-wideband response; Band pass filters; Filtering theory; Microstrip filters; Microwave filters; Optical filters; Resonator filters; Transversal filters; Differential-/common-mode; shorted parallel coupled-line; transmission pole; transversal signal-interference; ultra-wideband (UWB);
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
