Title :
Phase characterization of ferromagnetic materials using a coplanar waveguide
Author :
Brown, A.D. ; Kempel, L.C. ; Volakis, J.L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., IL, USA
Abstract :
To validate the finite element method´s suitability for array design on ferrite substrates, measurements were carried out for a z biased ferrite coplanar waveguide (CPW). From the measured S-parameters, propagation constants were extracted over the 1-4 GHz band using 2 different biasing variations. Numerical data for the CPW geometry was also generated using a Finite Element-Boundary Integral (FEBI) analysis. The transverse electric field values in the CPW slots were then used to extract the wavelength of the propagating mode. Using this wavelength, the propagation constant was computed and then compared to experimental measurements.
Keywords :
UHF measurement; coplanar waveguides; ferromagnetic materials; finite element analysis; microwave materials; microwave measurement; 1 to 4 GHz; CPW geometry; FEBI analysis; FEM; S-parameters; array design; coplanar waveguide; ferrite substrates; ferromagnetic materials; finite element method; finite element-boundary integral analysis; phase characterization; propagation constants; transverse electric field values; z-biased ferrite CPW; Coplanar waveguides; Data mining; Ferrites; Finite element methods; Geometry; Integral equations; Magnetic materials; Propagation constant; Scattering parameters; Wavelength measurement;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.873840
