An integrated circular polarization microwave rectifying antenna module

Microwave rectifying antenna is general formed by receiving antenna, input filter, matching circuit, rectifier circuit, output filter, and load. This design achieves the rectifying antenna miniaturization, integration, and modularity with integrating each structures of the microwave rectifying antenna on a same piece of PCB board, changing the linear circuit structure to be curved, designing the dc series parallel ports. This design reduces the area of rectifying antenna unit module, and facilitates the cascade connection between more rectifying antenna unit modules. Each rectifying antenna circuit in this paper is designed by the ADS design tool, and produced use the PR4 board after simulation and optimization. A single integration rectifying antenna unit's long, wide, high size are respectively 51mm × 47.6 mm × 0.6 mm, and its rectifier efficiency is 78% through the experimental test.