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

fYear

2012

fDate

19-20 April 2012

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/MMWCST.2012.6238207

Filename

6238207