In circuit boards made of Polyimide material, the signal velocity is typically about 16.3 cm per nanosecond or 6.146 ps / mm.
12.
Most slow light schemes can actually offer an arbitrarily long delay for a given device length ( length / delay = signal velocity ) at the expense of bandwidth.
13.
Signal velocity is usually equal to group velocity ( the speed of a short " pulse " or of a wave-packet's middle or " envelope " ).
14.
In a transmission line, signal velocity is the reciprocal of the square root of the capacitance-inductance product, where inductance and capacitance are typically expressed as per-unit length.
15.
They came to the conclusion that in such cases the signal velocity is not equal to the group velocity, but to the front velocity which is never faster than the speed of light.
16.
Given this presumption, the quantities : signal velocity, the product of dielectric constant and magnetic permeability, characteristic impedance, inductance of a structure, and capacitance of that structure, are all related such that if you know any two, you can calculate the rest.
17.
Under " refractive index " in EB, the definition of the refractive index does not clarify the crucial distinction between phase velocity and signal velocity; it is stated that the velocity of x-rays in glass is higher than the velocity of x-rays in a vacuum.
18.
As he wrote in 1907 and in later papers, the apparent contradiction between those principles can be resolved if it is admitted that Lorentz's local time is not an auxiliary quantity, but can simply be defined as " time " and is connected with signal velocity.
19.
When required, he would run the traces back and forth on the circuit boards until the desired length was achieved, and he employed Maxwell's equations in design of the boards to ensure that any radio frequency effects which altered the signal velocity and hence the electrical path length were accounted for.
20.
Before Einstein, Poincar?also developed a similar physical interpretation of local time and noticed the connection with signal velocity, but contrary to Einstein he continued to argue that clocks at rest in the stationary aether show the true time, while clocks in inertial motion relative to the aether show only the apparent time.
