FDTD analysis of crosstalk between SAW filter and package

Author

Lin, Kuan Yu ; Lin, Ken Huang ; Chau, Bob

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

1

fYear

2002

fDate

8-11 Oct. 2002

Firstpage

289

Abstract

A RF SAW filter device is sensitive to crosstalk between package and pads on the substrate. An accurate modeling taking into account the electromagnetic effects of the pattern on the SAW substrate is thus important to the performance of the SAW device. In this paper, a full-wave approach based on the finite-difference time-domain (FDTD) method is employed to investigate the above crosstalk. Our approach has been applied to a single one-port SAW resonator and the frequency response has been obtained. The electromagnetic field distribution over the substrate and the SAW insertion loss are also shown. It is then extended to include simple packaging to reveal the crosstalk between the pad and package. Measurement is also carried out to verify the simulation results.

Keywords

crosstalk; finite difference time-domain analysis; radiofrequency filters; surface acoustic wave resonator filters; RF SAW filter; crosstalk; electromagnetic effects; finite-difference time-domain method; frequency response; full-wave approach; insertion loss; packaging; single one-port SAW resonator; Crosstalk; Electromagnetic devices; Electromagnetic modeling; Finite difference methods; Packaging; Radio frequency; SAW filters; Surface acoustic wave devices; Surface acoustic waves; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE

ISSN

1051-0117

Print_ISBN

0-7803-7582-3

Type

conf

DOI

10.1109/ULTSYM.2002.1193404

Filename

1193404