Title :
Electromagnetic study of a ferrite coplanar isolator suitable for integration
Author :
Bayard, Bernard ; Vincent, Didier ; Simovski, Constantin R. ; Noyel, Gérard
Author_Institution :
Devices & Instrum. in Optoelectronics & Microwaves Lab., Univ. of St.-Etienne, France
fDate :
7/1/2003 12:00:00 AM
Abstract :
The transmission coefficient of a nonreciprocal coplanar waveguide (CPW) using ferrite rods is studied. A new approximate method is proposed to evaluate the propagation constant of such a perturbed waveguide, which is based on the use of numerical data referring to the nonperturbed waveguide. We have estimated the value of the nonreciprocity effect and settled the condition of the validity of our theory. Some experimental data of a CPW with ferrite inclusions are also presented.
Keywords :
anisotropic media; coplanar waveguide components; ferrite isolators; CPW; anisotropic media; electromagnetic study; ferrite coplanar isolator; ferrite rods; nonperturbed waveguide; nonreciprocal coplanar waveguide; nonreciprocity effect; perturbed waveguide; propagation constant; transmission coefficient; Coplanar waveguides; Electromagnetic waveguides; Ferrites; Frequency; Isolators; Magnetostatic waves; Microwave devices; Microwave magnetics; Microwave propagation; Strips;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2003.814312
