Three-frequency polarization insensitive electromagnetic energy collection structure unit and collection surface

A technology of electromagnetic energy and structural units, applied in the direction of electrical components, antennas, etc., can solve the problems of intricate polarization, limited microwave energy, and low microwave energy power, and achieve the effects of light weight, low cost, and easy conformality

Active Publication Date: 2016-11-23
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, the power of microwave energy in the surrounding environment is low, the polarization mode is intricate, and the microwave energy that can be collected by the electromagnetic energy collection surface of a single working frequency band is limited, which requires the electromagnetic energy collection surface to have Maintain polarization-insensitive operating characteristics

Method used

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  • Three-frequency polarization insensitive electromagnetic energy collection structure unit and collection surface
  • Three-frequency polarization insensitive electromagnetic energy collection structure unit and collection surface
  • Three-frequency polarization insensitive electromagnetic energy collection structure unit and collection surface

Examples

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Effect test

Embodiment 1

[0023] see Figure 2 to Figure 4 , a three-frequency polarization insensitive electromagnetic energy collection structural unit, consisting of four rectangular resonant rings 4 with the same structure and openings on the bottom side, the center of the top side of the rectangular resonant ring 4 is provided with a circular through hole 5, so One side of each rectangular resonant ring 4 is connected to the bottom of the adjacent rectangular resonant ring 4 to form a rectangular ring structure connected end to end. The collection structure unit is composed of four identical rectangular resonant rings 4 arranged in a centrally symmetrical shape according to certain rules, which can produce the same absorption effect on vertically incident waves of any linear polarization and any circular polarization, so as to achieve polarization insensitivity Purpose. The rectangular resonant ring 4 arranged according to this rule produces different coupling effects between adjacent sides, and ...

Embodiment 2

[0025] see Figure 1-Figure 4 , a tri-frequency polarization insensitive electromagnetic energy collection surface, comprising a metal structure layer 1, a dielectric substrate 2, a ground metal layer 3 and a matching resistor array; Composed of structural units; the dielectric substrate 2 is provided with through holes matching the circular through holes 5, the matching resistor array is composed of more than one resistor 6, and the resistors 6 are respectively placed in the One end of each through hole is connected to the edge of the circular through hole 5 , and the other end is connected to the metal layer 3 .

[0026] The metal structure layer 1 and the ground metal layer 3 are gold, silver or copper.

[0027] A circular through hole 5 is opened at the midpoint of the top edge of each rectangular resonant ring 4, which is adapted to the through hole of the dielectric substrate, penetrates to the ground metal layer 3, and the resistance 6 placed in the through hole is adj...

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PUM

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Abstract

The invention discloses a three-frequency polarization insensitive electromagnetic energy collection structure unit and a collection surface. The collection structure unit comprises four identical-structure rectangular resonance rings having openings at bottom edges, centers of top edges of the rectangular resonance rings are provided with circular through holes, one side edge of each rectangular resonance ring is connected with a bottom edge of the adjacent rectangular resonance ring, and an end-to-end rectangular resonance ring structure is formed. The collection surface comprises a metal structure layer, a medium substrate, a ground metal layer and a matching resistance array, wherein the metal structure layer comprises more than one collection structure unit, the medium substrate is provided with through holes in matching with the circular through holes respectively, the matching resistance array comprises more than one resistor, each resistor is respectively arranged in one through hole, one end of the resistor is connected with an edge of the circular through hole, and the other end is connected with the metal layer. According to the collection structure unit and the collection surface, a purpose that resonance absorption is generated at three frequency bands is realized, polarization insensitive characteristic is realized, the collection structure unit is applicable to application under the complex electromagnetic environment, the structure is stable and solid, cost is low, and the collection structure unit is suitable for large-scale production.

Description

technical field [0001] The invention relates to an electromagnetic energy collection structural unit and a collection surface, in particular to an electromagnetic energy collection structural unit and a collection surface insensitive to three-frequency polarization, and belongs to the technical field of antennas. Background technique [0002] In recent years, with the continuous development of wireless communication technology, the environment around us is full of microwave energy in various frequency bands. How to effectively collect and reuse these electromagnetic energies has gradually become a research hotspot. The electromagnetic energy harvesting surface is the key technology of electromagnetic energy harvesting, it can convert the electromagnetic energy received from the surrounding environment into electrical energy, and realize the transformation of energy form, so as to provide wireless sensor network (WSN) and radio frequency identification (RFID) and other electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00
Inventor 仲辉腾杨雪霞刘二佳李凌峰魏居正
Owner SHANGHAI UNIV
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