rgcox
Newbie level 2
ferrite bead simulation
Has anyone successfully simulated an antenna design that incorporates ferrite EMI suppression beads? I am trying to use a bead (or beads) as a broadband choke on a coaxial transmission line in an HFSS 11.1 model. I want to prevent the current flow on the outside of the coax sheild near a broadband dipole element. This is to control the radiation properties and impedance. I can't use quarter-wavelength chokes because the antenna is broadband.
My main problem is what values to use for relative permittivity, magnetic saturation, Lande G factor and delta H. I think that I have figured out the relative permeability, bulk conductivity and magnetic loss tangent. Amidon type 64 ferrite is what I plan to use. Amidon has not been helpful.
Thanks for any help.
Has anyone successfully simulated an antenna design that incorporates ferrite EMI suppression beads? I am trying to use a bead (or beads) as a broadband choke on a coaxial transmission line in an HFSS 11.1 model. I want to prevent the current flow on the outside of the coax sheild near a broadband dipole element. This is to control the radiation properties and impedance. I can't use quarter-wavelength chokes because the antenna is broadband.
My main problem is what values to use for relative permittivity, magnetic saturation, Lande G factor and delta H. I think that I have figured out the relative permeability, bulk conductivity and magnetic loss tangent. Amidon type 64 ferrite is what I plan to use. Amidon has not been helpful.
Thanks for any help.