Abstract
A pattern reconfigurable rectenna, consisting of a pattern reconfigurable receiving antenna and a low-/medium-power rectifying circuit, is proposed for microwave power transmission with multiple transmitting antennas. By controlling the states of p-i-n switch groups, the receiving antenna can work at one omni-directional mode and eight directional modes with flattened wide main beams for the arbitrary direction of incoming waves. In order to achieve good impedance matching at different modes, where the received power fluctuates severely, a complex impedance compression network (CICN) is introduced to the rectifying circuit. Since the proposed rectenna has a versatile structure, it can be used for multiple transmitting antennas in conformity with the incoming waves’ direction.
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