부산대학교 도서관

A novel design of an RF/microwave energy harvesting circuit making use of a directional filter for front-end system implementation is presented in this paper. The proposed setup consists of a rectifying circuit fed by the rejectband output port of a planar directional filter, using a microstrip resonator as the matching network. This particular configuration allows the overall reflection to be suppressed without affecting the passband channel, which is an important issue for any communications front-end performance. Design of all the stages are presented, and simulated and measured responses are shown as well as the obtained DC voltage levels from the rectifying circuit.