Roy Lewallen wrote:
For example, the ratio of E to
H of a plane wave propagating through space equals the intrinsic
impedance of space. The intrinsic impedance of space is purely real
(~377 + j0 ohms), which tells you that the ratio of E to H of a plane
wave propagating through it is purely real. This means there is no phase
difference between the two - E and H are in phase.

But if the E-field causes the H-field which in turn causes
the E-field, how is a delay avoided? Isn't that faster than
light generation of fields?
--
73, Cecil http://www.w5dxp.com