title: A short-circuited coplanar waveguide to measure the permeability of magnetic thin films: Comparison with short-circuited microstrip line.
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.
authors.affiliation: Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Jinwu
authors.initials: J
authors.lastname: Wei
authors.affiliation: Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Hongmei
authors.initials: H
authors.lastname: Feng
authors.affiliation: Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Zengtai
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Qingfang
authors.initials: Q
authors.lastname: Liu
authors.affiliation: Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Jianbo
authors.initials: J
authors.lastname: Wang