Title :
Design of LTCC wideband bandpass filter using semilumped resonators
Author :
Qian, K.W. ; Tang, X.H.
Author_Institution :
EHF Key Lab. of Fundamental Sci., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A novel broadband bandpass filter with semilumped resonators based on low-temperature co-fired ceramic (LTCC) technology is proposed. By properly controlling the elements of each resonator, two transmission zeros can be located at both sides of the passband for better selectivity. Moreover, multilayer capacitors are adopted to increase the capacitance without area increment. Measured results show a bandwidth of more than 65%, where the centre frequency is 3.6%GHz.
Keywords :
band-pass filters; ceramic capacitors; ceramic packaging; microwave filters; microwave resonators; network synthesis; LTCC wideband bandpass filter design; broadband bandpass filter; frequency 3.6 GHz; low-temperature cofired ceramic technology; multilayer capacitor; semilumped resonator; transmission zeros;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.0775
