Theoretical and experimental evidence of nonreciprocal effects on magnetostatic forward volume wave resonators

Author

Huynen, I. ; Verstraeten, G ; Vorst, A. Vander

Author_Institution

Microwaves UCL, Louvain-La-Neuve, Belgium

Volume

5

Issue

6

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

195

Lastpage

197

Abstract

An unexpected nonreciprocal behavior is observed on Magnetostatic Forward Volume Waves (MSFVW) Straight Edge Resonators (SER´s) using YIG films. The nonreciprocal effect is theoretically predicted by taking into account the demagnetizing effect of the DC biasing magnetic field when calculating the forward and reverse propagation constants of MSFVW inside the YIG film. Hence, a nonreciprocal scattering matrix of the MSFVW-YIG-SER coupled to its transducers is calculated. The measured values of the transmission coefficients agree extremely well with the predicted ones. They both present an important nonreciprocal phase behavior

Keywords

S-matrix theory; demagnetisation; garnets; magnetic microwave devices; magnetostatic wave devices; magnetostatic waves; resonators; yttrium compounds; DC biasing magnetic field; MSW devices; YFe5O12; YIG; YIG films; demagnetizing effect; magnetostatic forward volume wave resonators; nonreciprocal effects; nonreciprocal phase behavior; nonreciprocal scattering matrix; straight edge resonators; transmission coefficients; Demagnetization; Dispersion; Electrical capacitance tomography; Frequency synthesizers; Magnetic field measurement; Magnetic fields; Magnetic films; Magnetostatic waves; Propagation constant; Transducers;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.386129

Filename

386129