Abstract
A short-circuited coplanar waveguide jig was proposed due to its simple structure and potential applications, which was successfully used to measure the permeability spectra of magnetic thin film. The result obtained from the coplanar waveguide (CPW) jig exhibits typical ferromagnetic resonance spectra, which can be well fitted by a trade-off equation because the measured permeability spectra have a bit of asymmetry because of the special intensity distribution of the microwave magnetic field in the CPW. In order to confirm the availability of the shorted CPW jig, a previous short-circuited microstrip line jig was used to measure the permeability spectra of the same sample. The dynamic permeability results obtained by using different jigs are commendably consistent, and the accurate and valid results are also confirmed by using the vector network analyzer ferromagnetic resonance method.
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