Energy harvesting antenna for various communication transceivers

In this paper, it is proposed the novel energy harvesting antenna which is composed of a main and a parasitic radiator. The parasitic radiator of the proposed antenna mainly receives the RF power radiated at the outside of 3-dB beamwidth form the main radiator, which does not contribute to the electrical performance of the main radiator. Thus, we can generate DC power using the dissipated RF energy that is radiated from the main radiator in various communication transceivers. The measured gain of the main radiator of the proposed antenna is 8.35 dBi, which is nearly identical to the gain of the printed dipole without the parasitic radiator. However, the parasitic radiator can gain a considerable amount of power from the main radiator due to the realized coupling performance of -12 dB. It was also verified by an EIRP test that the proposed antenna can be used as an antenna for actual wireless transceivers. We anticipate that the proposed antenna can be used as an assistant DC power means in various wireless communication transceivers.