A new magnetostatic wave delay line using YIG film

Author

Okubo, Kensuke ; Priye, Vishnu ; Tsutsumi, Makoto

Author_Institution

Fac. of Comput. Sci. & Syst. Eng., Okayama Univ., Japan

Volume

33

Issue

3

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

2338

Lastpage

2341

Abstract

We have proposed a delay line of microstrip type consisting of a microstrip line fabricated on a composite substrate of two yttrium iron garnet films separated by a gadolinium gallium garnet layer. The dispersion relations are derived assuming magnetic walls at the edges of the strip. Experiments are carried out at S band with nonuniform magnetic field. Insertion loss less than 25 dB with large delay time more than 800 ns is observed experimentally. The experimental results on delay line characteristics are briefly discussed with theory

Keywords

delay lines; dispersion relations; garnets; magnetic epitaxial layers; magnetic microwave devices; magnetic thin film devices; magnetostatic wave devices; magnetostatic waves; microstrip lines; yttrium compounds; 2.6 to 3 GHz; 25 dB; 800 ns; S band experiments; YFe5O12; YFe5O12-GdGa5O12-YFe5O12; YIG; YIG film; YIG-GdGG-YIG; composite garnet substrate; delay time; dispersion relations; epitaxially grown films; insertion loss; magnetic walls; magnetostatic wave delay line; microstrip line; microstrip type delay line; nonuniform magnetic field; Delay lines; Dispersion; Garnet films; Iron; Magnetic films; Magnetic separation; Magnetostatic waves; Microstrip; Substrates; Yttrium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.573852

Filename

573852