Phase velocity higher than the speed of the light In special circumstances, the phase velocity of a wave can exceed the speed of the light, c. However,
A signal that transmits information normally have a small frequency interval (lateral bands) around the high frequency carrier. This signal is a “frequency” group and forms a
The solutions to the Maxwell’s equations for transmission media such as transmission lines and waveguides, there are two velocities: the phase velocity and the group velocity. We are going
