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

Author

Maeda, A. ; Susaki, M.

Author_Institution

Osaka Prefectural Coll. of Technol., Osaka

fYear

2006

fDate

8-12 May 2006

Firstpage

455

Lastpage

455

Abstract

Various periodic gratings were carved on the surface of yttrium-iron-garnet (YIG) single crystal film by using a high-precision dicing saw. Deeper structural modifications were achieved with well-controlled linearity, spacing, and edge structure. Containing deep gratings, two types of magnetostatic wave filters were designed and tested. In a band-stop filter, rejection notch reached 40 dB at 3 GHz. A band-pass filter possessed insertion loss of 5 dB and -3 dB bandwidth at 150 MHz. In addition, new configuration using an apodized grating was proposed. A periodic grating on the surface is effective to improve the propagation characteristics of the YIG filter.

Keywords

band-pass filters; band-stop filters; ferromagnetic materials; garnets; magnetic thin films; magnetostatic waves; scanning electron microscopy; yttrium compounds; SEM images; YIG; apodized grating; band-pass filter; band-stop filter; bandwidth 150 MHz; frequency 3 GHz; high-precision dicing saw; insertion loss; magnetostatic wave filters; magnetostatic wave propagation; microfabricated surfaces; periodic gratings; rejection notch; structural modification; yttrium-iron-garnet single crystal film; Band pass filters; Bandwidth; Gratings; Insertion loss; Linearity; Magnetic separation; Magnetostatic waves; Surface waves; Testing; Yttrium;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.376179

Filename

4261888