Phase Dependent Power in a Transmission Line Circuit

In a waveguide or a transmission line, the power supplied by the source and the impedance can be adjusted by controlling the amount of the phase change of the signal when it propagates through the equivalent transmission line once the medium, the structure, and the load of the waveguide or the transmission line are chosen. By choosing an appropriate frequency, transmission line, and load, the negative power factor of the transmission line circuit is obtained.