Relation between Power Dissipation and Signal Transmission Characteristic in CoZrNb/Polyimide Hybrid Microstrip Line

Abstract

RF hybrid microstrip line with a Polyimide (1 μm)/CoZrNb (1 μm)/Polyimide (1 μm) sandwich was fabricatedand characterized. The hybrid microstrip line exhibited alarge effect of the wavelength-shortening, and the largesignal-decay at around or over the intrinsic ferromagneticresonance (FMR) frequency. To discuss the effect of thepower dissipation on the signal transmission wasdiscussed on the basis of the experimental results andpower loss estimation using the electromagnetic fieldanalysis with taking the FMR into account. The insertionloss around or over the intrinsic FMR point was not onlyowing to the FMR absorption, but also owing to the eddycurrent enhancement by skin effect anomaly by the FMR.