Miniaturized ultra-broadband SIR filter using LTCC technology

Author

Zuo, Li Hua ; Qian, Ke Wei ; Tang, Wei

Author_Institution

Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2011

fDate

14-16 Dec. 2011

Firstpage

29

Lastpage

32

Abstract

A novel broadband quarter-wavelength SIR BPF using LTCC technology is proposed. In this filter, three different coupling schemes are adopted. Edge-coupled structure is used to realize week coupling coefficient while great coefficient is obtained by applying direct magnetic coupling between two resonators or overlapping resonators in different LTCC layers. Based on the proposed strong coupling topology, the filter bandwidth is extended while the size is compacted. Besides, spur lines are adopted to improve the stopband rejection.

Keywords

band-pass filters; ceramic packaging; resonators; ultra wideband technology; LTCC layer; LTCC technology; broadband quarter-wavelength SIR BPF; coupling scheme; coupling topology; direct magnetic coupling; edge-coupled structure; filter bandwidth; miniaturized ultra-broadband SIR filter; overlapping resonator; stopband rejection; week coupling coefficient; Band pass filters; Couplings; Magnetic separation; Microstrip filters; Microwave filters; Resonant frequency; Resonator filters; SIR filte; coupling scheme; low temperature co-fired ceramic (LTCC);

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Superconductivity and Electromagnetic Devices (ASEMD), 2011 International Conference on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4244-7852-1

Type

conf

DOI

10.1109/ASEMD.2011.6145060

Filename

6145060