Title :
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
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;
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
DOI :
10.1109/ICEPT.2011.6066907
