An Experimental Study for Evaluating Re-radiation of Higher Harmonic Waves from a Rectenna for Microwave Power Reception

Abstract

In the practical application of a microwave power transmission system, care should be taken in a radio environment, since a transmission power is much higher than usual communication channels. Although reradiation of higher harmonic waves from a rectenna is a problem, its characteristics are not fully understood yet. In this paper, propagating higher harmonic waves generated in and radiated from a dipole rectenna are measured and the result of this measurement is evaluated by semi-theoretical consideration. The result will be fundamental data to evaluate re-radiation characteristics of harmonics in microwave power transmission systems.