Low-frequency polarization insensitive wave absorber for energy collection
An energy harvesting and wave absorber technology, applied in antennas, electrical components, etc., to achieve the effect of enhancing absorption efficiency, improving design freedom, and excellent absorption effect
Pending Publication Date: 2022-07-26
GUANGDONG POLYTECHNIC NORMAL UNIV
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The realization of low-frequency electromagnetic energy harvesting in the living environment in the 5G communication era poses a new challenge to the design of absorbers
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] Experiment of the embodiment of the present invention Figures 1 to 4 As shown, in the embodiment of the present invention, a low-frequency polarization-insensitive wave absorber for energy collection is composed of 25 wave absorbing periodic units 6, each wave absorbing periodic unit 6 includes a bottom conductive layer 4, an air The gap layer 3 , the intermediate dielectric layer 2 and the surface periodic conductive structur...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| dielectric loss | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a low-frequency polarization insensitive wave absorber for energy collection, which is characterized by comprising at least one wave-absorbing periodic unit, the wave-absorbing periodic unit comprises a bottom conductive layer, an air gap layer, an intermediate dielectric layer and a surface periodic conductive structure layer, the air gap layer is arranged above the bottom conductive layer, and the intermediate dielectric layer is arranged above the surface periodic conductive structure layer. The middle dielectric layer is arranged above the air gap layer, and the surface periodic conductive structure layer is arranged above the middle dielectric layer; split ring resonators with symmetrical structures are arranged on the surface periodic conductive structure layer, and lumped resistors are loaded on the split ring resonators. Compared with a traditional wave absorber, the wave absorber provided by the invention has excellent polarization stability, has excellent absorption performance in a main frequency band Sub-6GHz of 5G communication, can store the absorbed electromagnetic energy in a resistor instead of being dissipated by a dielectric layer, and provides a new exploration direction and guidance for the aspects of replacement of small-power equipment batteries, energy regeneration, air charging and the like in the future.
Description
technical field [0001] The invention relates to the field of wave absorbers, in particular to a low frequency polarization-insensitive wave absorber for energy collection. Background technique [0002] Nowadays, with the rapid popularization of 5G communication, along with the rapid development of various wireless communication technologies, the electromagnetic wave energy in the living environment is also increasing, which brings electromagnetic pollution to a certain extent, and the absorption of electromagnetic energy in the environment also causes more and more widespread focus on. In 2008, Landy et al. proved for the first time that metamaterials, as a synthetic material, can replace traditional absorption materials, and have many advantages such as small size, light weight, low cost, high absorption rate, and high degree of freedom of design. The metamaterial absorber is usually composed of a bottom conductive layer, an intermediate dielectric layer, and a surface per...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00
CPCH01Q17/008
Inventor 赖森锋刘洋刘桂扬郭焰培
Owner GUANGDONG POLYTECHNIC NORMAL UNIV