Full-wave FDTD analysis of transmission characteristics of a microstrip line with a YIG thin film substrate

Author

Sanada, Atsushi ; Okubo, Kensuke ; Yamane, Kuniyoshi

Author_Institution

Yamaguchi Univ., Ube, Japan

Volume

3

fYear

1999

fDate

1999

Firstpage

944

Abstract

We investigate overall transmission characteristics of a microstrip line with a YIG thin film substrate including both the quasi-TEM and MSFVW modes by using the FDTD method solving the Maxwell´s equations simultaneously with equation of motion of the magnetization vector in consistency, which is useful for the circuit design and packaging. A profile of a mechanism of excitation of the MSFVW in the microstrip line is shown in sequence of time and in a point of view of the attenuation frequency range of the transmission characteristic in comparison with the result of the conventional theoretical approach with magnetostatic approximation. The transmission characteristic agreed well with the experimental result and the validity of the FDTD result has been confirmed

Keywords

finite difference time-domain analysis; garnets; magnetic microwave devices; magnetic thin films; magnetostatic wave devices; microstrip lines; transmission line theory; yttrium compounds; MSFVW mode; Maxwell equations; YFe5O12; YIG; YIG thin film substrate; equation of motion; full-wave FDTD analysis; magnetization vector; magnetostatic approximation; magnetostatic wave device; microstrip line; quasi-TEM mode; transmission characteristics; Circuit synthesis; Finite difference methods; Magnetic analysis; Magnetization; Maxwell equations; Microstrip; Packaging; Substrates; Thin film circuits; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1999 Asia Pacific

Print_ISBN

0-7803-5761-2

Type

conf

DOI

10.1109/APMC.1999.833751

Filename

833751