Magnetostatic Wave Propagation in Yttrium-Iron-Garnet With Microfabricated Surfaces

Author

Maeda, Atsushi ; Susaki, Masami

Author_Institution

Electr. & Electron. Eng. Div., Osaka Prefectural Coll. of Technol.

Volume

42

Issue

10

fYear

2006

Firstpage

3096

Lastpage

3098

Abstract

Various periodic gratings were carved on the surface of yttrium-iron-garnet (YIG) single-crystal films by a high-precision dicing saw. The mechanical process achieved the clearer structural modification in comparison with the wet and dry processes used in the past studies. Two types of magnetostaic wave filters were prepared utilizing the YIG gratings. In a band-stop filter, the rejection notch reached 40 dB at 3 GHz. A bandpass filter possessed insertion loss of 5 dB and -3-dB bandwidth of 150 MHz. In addition, a new configuration, "apodized" grating, was proposed to eliminate the ripples in the wide-frequency range

Keywords

band-pass filters; garnets; magnetostatic wave devices; magnetostatic waves; notch filters; wave propagation; 150 MHz; 3 GHz; 5 dB; Y₃Fe₅O₁₂; YIG gratings; apodized grating; band-stop filter; bandpass filter; high-precision dicing saw; insertion loss; magnetostatic wave filters; magnetostatic wave propagation; mechanical process; microfabricated surfaces; periodic gratings; rejection notch; single-crystal films; structural modification; Band pass filters; Blades; Gratings; Magnetic separation; Magnetostatic waves; Microwave filters; Microwave propagation; Surface treatment; Surface waves; Yttrium; Magnetostatic waves; simulation; surface treatment; yttrium-iron-garnet (YIG) filters;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.878869

Filename

1704538