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

fYear

2011

Firstpage

971

Lastpage

974

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);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2011 Asia-Pacific

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4577-2034-5

Type

conf

Filename

6173915