Dual polarization retrodirective rectifying antenna array

Abstract

The invention relates to a dual polarization retrodirective rectifying antenna array. The dual polarization retrodirective rectifying antenna array comprises a three-layer structure, including an upper dielectric layer, a middle metal floor and a lower dielectric layer; radiation patches are arranged on the upper dielectric layer; coupled gaps are formed in the middle metal floor; microstrip feeder lines are arranged on the lower dielectric layer; the radiation patches, the coupled gaps and the microstrip feeder lines form the dual polarization retrodirective rectifying antenna array; meanwhile, a rectifying circuit is arranged on the lower dielectric layer; the microstrip feeder lines are connected with microstrip lines at the input end of the rectifying circuit with the same widths for radiating horizontally polarized wave and perpendicularly polarized wave when two output ports are in operating respectively; when a diode is conducted, rectifying of the rectifying circuit is completed to form the dual polarization retrodirective rectifying antenna array; the problem of efficiency decline caused by alignment sensitivity can be solved effectively, real-time tracking of incoming wave within a relatively large can be realized, and the retrodirective function of the antenna array is realized, so that the dual polarization retrodirective rectifying antenna array can be applied to the fields of wireless communication, vehicle-mounted radar, wireless energy transmission and the like.

Description

technical field [0001] The invention relates to the field of wireless energy transmission, in particular to a dual-polarization direction backtracking rectifying antenna array. Background technique [0002] In the past few decades, microwave wireless power transmission (MPT) technology has become a research hotspot to solve future energy problems. MPT technology uses microwave as a carrier to wirelessly transmit energy between two points, and its applications include air-to-air, ground-to-air, air-to-ground and ground-to-ground. For an efficient microwave energy transmission system, due to the narrow beam width of the transceiver antenna array, strict alignment is required, otherwise, the rectenna efficiency will drop sharply. [0003] Retrodirective Antenna (RDA) array is a type of antenna array that can automatically reflect incident electromagnetic waves to the incident direction. Unlike other types of adaptive tracking antennas, the RDA array can realize the adaptive t...

AI Technical Summary

Problems solved by technology

The direction backtracking rectenna array can solve the problem that the rectification efficiency is sensitive to the angle of the incident wave, and realize the adaptive tracking performance of the antenna array without knowing the direction information of the incident electromagnetic wave in advance and without resorting to complex digital signal processing methods

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