Design of a Broadband Rectifier with a Coupled Transmission Line

In this paper, for the application of wireless power transfer and wireless energy harvesting, a wide-band rectifier is proposed. The impedance matching network of the rectifier includes two series of transmission lines cooperating with a coupled transmission line. The working band of the rectifier is greatly improved and the simulated results indicate that within the operational frequency range of 0.71 to 2.8 GHz, the efficiency of radio frequency - DC conversion keeps a value of above 50%.