Title :
Effective-field theory for ferrite thin-film junction circulator
Author :
How, H. ; McKnight, S.W. ; Vittoria, C.
Author_Institution :
ElectroMagnetic Applications Inc., MA, USA
Abstract :
We have calculated the S-parameters and losses in ferrite-film junction circulators using a new effective-field theory assuming TEM-like propagation. Conductivity losses dominate the dielectric and magnetic losses in Y-junction circulators fabricated on ferrite films with thicknesses less than 200 /spl mu/m.
Keywords :
S-parameters; dielectric losses; ferrite circulators; magnetic leakage; magnetic microwave devices; magnetic thin film devices; 0 to 200 micron; S-parameters; TEM-like propagation; Y-junction circulators; conductivity losses; dielectric losses; ferrite thin-film junction circulator; field theory; magnetic losses; Conductivity; Conductors; Dielectric loss measurement; Dielectric losses; Ferrite films; Magnetic losses; Permeability; Propagation losses; Skin; Transformers;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.603000
