Title :
Notched ultra-wideband filter based on stepped-impedance T-shaped resonator in low temperature cofired ceramic
Author :
Chun-Xia Zhou ; Yong-Xin Guo ; Lin-Sheng Wu ; Wen Wu ; Qian Xiao
Author_Institution :
Ministerial Key Lab. of JGMT, Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
A compact ultra-wideband (UWB) bandpass filter with an inherent notched band and steep slopes has been presented and implemented with the low temperature cofired ceramic technology. The filter is realized by a stepped-impedance T-shaped resonator (SITR) coupled to a pair of quarter-wavelength input/output feed-lines. The proposed SITR can facilitate not only a notched band, but also sharp roll-off characteristics. Measured results agree well with the HFSS simulated results. The whole size of the UWB filter is only 6.0×6.0×1.92 mm3.
Keywords :
notch filters; resonator filters; ultra wideband technology; HFSS; SITR; UWB bandpass filter; low temperature cofired ceramic technology; notched ultra-wideband filter; quarter-wavelength input-output feed-lines; sharp roll-off characteristics; steep slopes; stepped-impedance T-shaped resonator; Band-pass filters; Filtering theory; Metals; Resonant frequency; Resonator filters; Ultra wideband technology; Wireless communication; Low temperature cofired ceramic (LTCC); notch; stepped-impedance; ultra-wideband (UWB) filter;
Conference_Titel :
Wireless Symposium (IWS), 2014 IEEE International
Conference_Location :
X´ian
DOI :
10.1109/IEEE-IWS.2014.6864255
