Title :
A high-selectivity multistage combline filter with wide stop-band
Author :
Xu, Mei-juan ; Xu, Zi-qiang ; Chen, Kang ; Cong-yu, Xu ; Bo, Fu
Author_Institution :
Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
This paper demonstrates a compact combline filter based on multilayer Low Temperature Co-fired Ceramic (LTCC) technology. According to the combline theory and full-wave electro-magnetic (EM) comparing simulation, a filter operates at 2.3GHz-2.75GHz with dimension of chip-size 1812(4.5mm × 3.2mm × 1.5mm) is designed and fabricated. It generates a wide stop-band with three transmission zeros at the high-side skirt at 3.3GHz, 5.2GHz, 5.7GHz respectively to reject interferential frequencies. The passband insertion loss is less than 2dB. The measured results evidence the feasibility of the proposed design.
Keywords :
band-pass filters; band-stop filters; comb filters; LTCC technology; combline theory; compact combline filter; frequency 3.3 GHz; frequency 5.2 GHz; frequency 5.7 GHz; full-wave electromagnetic simulation; high-selectivity multistage combline filter; interferential frequencies; multilayer low temperature co-fired ceramic; passband insertion loss; stop-band; transmission zeros; Decision support systems; Hafnium; Combline; High-Selectivity; LTCC; transmission zero;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2012 International Workshop on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-1893-8
DOI :
10.1109/MMWCST.2012.6238207
