Title :
A compact UWB bandpass filter using two-section open-circuited stubs to realize transmission zeros
Author :
Cai, Peng ; Ma, Zhewang ; Guan, Xuehui ; Yang, Xuexia ; Kobayashi, Yoshio ; Anada, Tetsuo ; Hagiwara, Gen
Author_Institution :
Sch. of Commun. & Inf. Eng., Shanghai Univ., China
Abstract :
A design of a compact ultra-wideband (UWB) bandpass filter is presented in this paper. The filter is synthesized by a modified theory using Z-transform technique. In order to get sharp attenuations of the filter, shunt two-section open-circuited stubs are employed to produce transmission zeros in the lower and upper stopbans. A 3-degree UWB filter is designed and implemented in the form of microstrip lines, and the measured characteristics show good agreement with the theoretical and simulated results.
Keywords :
Z transforms; band-pass filters; microstrip filters; microstrip lines; ultra wideband technology; UWB bandpass filter; Z transforms; microstrip lines; open-circuited stubs; transmission zeros; Attenuation; Band pass filters; Chebyshev approximation; Circuit synthesis; Filtering theory; Impedance; Transfer functions; Transmission line theory; Ultra wideband communication; Ultra wideband technology; Bandpass filter; Z-transform; transmission zeros; ultra-wideband (UWB);
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1607075
