True/False. Enter T or F for statement. (Do not enter the…
True/False. Enter T or F for statement. (Do not enter the words “true” or “false”. Just the letter T or F) In free space, the speed of a propagating electromagnetic wave equals the speed of light (c) Transmission line effects can be ignored when the signal frequency is above 1 MHz. The voltage/current waves propagating inside a transmission line are derived from “wave equations”. A “lossless” transmission line ignores capacitance/inductance effects. An antenna creates waves by wiggling electric charge in order to disturb/perturb the electromagnetic field. The Poynting vector points in the direction of propagation. Radio waves transmit both information and energy from point A to point B. For best power efficiency, a half-wave dipole antenna should have 1/2 the impedance of the transmission line that feeds it. VHF stands for “very high frequency”. The electric field (E) and magnetic field (H) in a TEM wave are parallel to the direction of wave propagation.