静磁波素子開発の現状と将来展望

概要

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Among the major characteristics of magnetostatic waves are their very slow propagation in YIG films and their frequency-selective saturation. Linear applications of the magnetostatic waves include delay lines, filters, resonators, directional couplers, and oscillators while nonlinear applications include frequency-selective limiters, signal-to-noise enhancers, and convolvers. This article describes the basic properties of magnetostatic waves, and introduces a delay line, a narrow bandpass filter, and a signal-to-noise enhancer. It is shown that the signal-to-noise enhancer is effective in reducing noise in DBS reception. Magnetostatic wave devices are then compared with other microwave and millimeter wave devices, and the author concludes that nonlinear applications are more attractive than linear ones.
社団法人日本磁気学会の論文
1997-11-01