Theory of MSFVW excitation in a YIG film by a finite-length microstrip transducer

Author

Peng, L.P. ; Parekh, J.P. ; Tuan, H.S.

Author_Institution

Dept. of Electr. Eng., State Univ. of New York, Stony Brook, NY, USA

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

1396

Lastpage

1398

Abstract

A theoretical study of the excitation of magnetostatic forward volume waves (MSFVW´s) in a YIG film by a microstrip transducer of finite length is described. Previous studies of the excitation problem have assumed an infinitely long transducer which is a good assumption at the upper end of the MSFVW spectrum but becomes increasingly unacceptable at the lower end of the spectrum where the MSFVW wavelength is comparable to or larger than the transducer lengths used in practice. The present work reports brute-force numerical computations of MSFVW wavefront mapping and power flow generated by finite-length transducers which are in agreement with expectation

Keywords

garnets; magnetic thin films; magnetostatic waves; microstrip components; transducers; yttrium compounds; MSFVW excitation; MSFVW wavelength; YFe5O12; YIG; YIG film; brute-force numerical computations; finite-length microstrip transducer; finite-length transducers; magnetostatic forward volume waves; power flow; wavefront mapping; Fourier transforms; Frequency; Geometry; Integral equations; Microstrip; Performance evaluation; Permeability; Saturation magnetization; Tensile stress; Transducers;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.706560

Filename

706560