Design of band-pass filter based on different materials in LTCC/LTCF technology

Author

Yuejin, Li ; Mengjiang, Xing ; Yintang, Yang

Author_Institution

Res. Inst. of Microelectron., Xidian Univ., Xi´´an, China

fYear

2011

fDate

8-11 Aug. 2011

Firstpage

1

Lastpage

3

Abstract

A band-pass filter based on different materials in LTCC/LTCF technology is proposed in this letter. The BPF was constructed with three-order Chebyshev coupled resonators configuration. With the conventional LTCC technology we can´t get big inductance due to the limitation of permeability of ceramics for miniaturization. So we can´t get conventional lumped filters with low resonance frequency. In LTCC we insert several ferrite layers in ceramic, due to the high permeability we can get big inductance and conventional lumped filters with low resonance frequency. The BPF fabricated by LTCC/LTCF process has small size (2.4mm*4.8mm*1.2mm). The middle frequency is 10MHz, the bandwidth is 2MHz, the insertion loss is 0.5dB, and the inhibit degree of outside band is 30dB. This paper mainly focuses on the design and fabrication by LTCF technology.

Keywords

band-pass filters; ceramic packaging; ferrites; magnetic permeability; resonators; BPF; LTCC-LTCF technology; band-pass filter; bandwidth 2 MHz; ceramic permeability; ferrite layers; frequency 10 MHz; loss 0.5 dB; lumped filters; resonance frequency; three-order Chebyshev coupled resonator configuration; Band pass filters; Ceramics; Ferrites; Inductors; Permeability; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Packaging Technology and High Density Packaging (ICEPT-HDP), 2011 12th International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4577-1770-3

Electronic_ISBN

978-1-4577-1768-0

Type

conf

DOI

10.1109/ICEPT.2011.6066907

Filename

6066907