E field in a coax
E field in a coax
(OP)
I asked this ages ago and got a response refering to surface integrals and Gauss's Law and good stuff like that. Well I struggled and can't cast my mind back 25+ years to figure that out again.
So I'll ask again, and hope someone can respond (preferably with an equation or two).
What are the expressions for electric field strength in a coax having two dielectrics?
So I'll ask again, and hope someone can respond (preferably with an equation or two).
What are the expressions for electric field strength in a coax having two dielectrics?






RE: E field in a coax
r2, e2 = inner dielectric radius & dielectric constant
& r3, e3= outer conductor radius and e3 fills between r2 & r3.
assume only charge is located on center conductor
Q= 2*pi*r1*rho_s = total charge per unit length
Then e1 = Q/(2*pi*e2*r) r1<r<r2
Q/(2*pi*e3*r) r2<r<r3
RE: E field in a coax
http://www.microwaves101.com/encyclopedia/caldualcoax.cfm