Ripple holographic super-surface based electromagnetic energy collecting structure

Abstract

The invention discloses a ripple holographic super-surface based electromagnetic energy collecting structure. The electromagnetic energy collecting structure comprises a dielectric substrate, a microstrip line on the dielectric substrate, and a ripple holographic super-surface body, wherein the ripple holographic super-surface body is an elliptical surface, and is an circular arc strip array formed by more than one ripple holographic super-surface body unit structure; the centre of a circle of each metal patch circular arc strip array is connected with the micro-strip wire; the metal patch circular arc strip array comprises more than one metal patch; the dimension of each metal patch is gradually decreased from one side close to the microstrip line to the side far from the microstrip line; and the gaps among the metal patches are gradually increased from one side close to the microstrip line to the side far from the microstrip line. According to the electromagnetic energy collecting structure, the space electromagnetic wave can be converted into surface wave efficiently to realize energy convergence so as to realize efficient energy collection; and the electromagnetic energy collecting structure is applied to the fields of the Internet of Things, the radio frequency identification (RFID), the wireless sensor network (WSN), energy collection and recycling and the like, and has bright application prospects.

Description

technical field [0001] The invention relates to an electromagnetic energy collection structure, in particular to an electromagnetic energy collection device based on corrugated holographic metasurfaces, which belongs to the field of new artificial electromagnetic materials, energy collection and recovery, and is applied to the Internet of Things, radio frequency identification (RFID) and wireless sensors Network (WSN) and other fields. Background technique [0002] As the two core technologies of the Internet of Things, radio frequency identification (RFID) and wireless sensor network (WSN) have attracted great attention from the international academic and business circles, and government departments of various countries are also actively promoting the development of the Internet of Things. Internet of things technologies such as WSN and RFID have penetrated into various fields: such as national defense security, space detection, environmental monitoring, etc. RFID and WSN ...

AI Technical Summary

Problems solved by technology

In the case of low micro-power input, the efficiency of the rectifier circuit will drop sharply (less than 10%), thereby reducing the energy conversion efficiency of the entire system

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