Design of Multilayer LTCC Bandpass Filter with Low Loss and High Suppression Using SIR Structure

Author

Mu, Zi-Wei ; Qin, Ya-Li ; Zhao, Yu-Jie ; Wu, Zhe-Fu

Author_Institution

Inst. of Fiber-Opt. Commun. & Inf. Eng., Zhejiang Univ. of Technol., Hangzhou

fYear

2008

fDate

14-15 Dec. 2008

Firstpage

176

Lastpage

179

Abstract

A small-sized high-performance bandpass filter design is presented in this paper. The LTCC multilayered structure and Stepped Impedance Resonators (SIR) are employed to miniaturize the filter size, and through the introduction of transmission zeros can obtain a higher stopband suppression. This paper highlighted discusses the factors that cause the filter insertion loss. The designed filter has superior passband characteristics with central frequency 2.45 GHz and package size is 2.5 mm times 2.0 mm times 0.9 mm. The simulation results shown the proposed filter completely meet the needs of bluetooth/WLAN wireless communication systems.

Keywords

band-pass filters; ceramics; microwave filters; multilayers; resonator filters; LTCC multilayered structure; bandpass filter; frequency 2.45 GHz; insertion loss; stepped impedance resonators; stopband suppression; transmission zeros; Band pass filters; Bluetooth; Filtering theory; Frequency; Impedance; Insertion loss; Nonhomogeneous media; Packaging; Passband; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Art of Miniaturizing RF and Microwave Passive Components, 2008. IMWS 2008. IEEE MTT-S International Microwave Workshop Series on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-2876-2

Electronic_ISBN

978-1-4244-2877-9

Type

conf

DOI

10.1109/IMWS.2008.4782293

Filename

4782293