A Systematic Design Method for Band-Pass Filters Composed of Film Bulk Acoustic Resonators

Author

Chen, Pei-Yen ; Chin, Yung-Chung ; Lin, Hsin-Hung ; Hou, Chun-Li

Author_Institution

Chung-Shan Inst. of Sci. & Technol., Taoyuan

fYear

2007

fDate

27-31 May 2007

Firstpage

714

Lastpage

716

Abstract

We propose a systematic method to design band-pass filters composed of film bulk acoustic resonators (FBARs), for wireless communication. FBARs have demonstrated excellent performance due to their compact size, low loss, power endurance and IC compatibility. Modifying the traditional Butterworth theory, the ladder-type band-pass filters can be composed of FBARs to satisfy various filter specifications including impedance, center frequency and bandwidth. The filter design parameters are considered using the thickness and area of the composed FBARs, which are used to replace the conventional series and parallel LC resonators. This design philosophy can also be applied to other kinds of band-pass filters. An FBAR´s filter is designed and manufactured to demonstrate our approach.

Keywords

Butterworth filters; acoustic resonator filters; band-pass filters; Butterworth theory; IC compatibility; band-pass filter design; compact size; film bulk acoustic resonators; impedance; ladder-type band-pass filters; power endurance; wireless communication; Band pass filters; Bandwidth; Design methodology; Film bulk acoustic resonators; Filtering theory; Frequency; Impedance; Performance loss; Resonator filters; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on

Conference_Location

Nara

ISSN

1099-4734

Print_ISBN

978-1-4244-1334-8

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2007.4393380

Filename

4393380