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Multi-value resistor integrated super-structure broadband optical transparent microwave absorbing device

An optically transparent and resistive technology, used in electrical components, antennas, etc., can solve the problems of the overall structure is not compact, affecting the light transmittance of the device, etc., to achieve the effect of compact structure, increase flexibility, and reduce performance errors

Active Publication Date: 2020-05-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, by increasing the degree of freedom in the depth direction structure of the device, although the purpose of broadband absorption is achieved, it also affects the light transmittance of the device and makes the overall structure not compact.

Method used

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  • Multi-value resistor integrated super-structure broadband optical transparent microwave absorbing device
  • Multi-value resistor integrated super-structure broadband optical transparent microwave absorbing device
  • Multi-value resistor integrated super-structure broadband optical transparent microwave absorbing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the present invention provides an ultra-structured broadband optical transparent microwave absorbing device with multi-valued resistors integrated. ring resistance 2, and the conductive surface 3 of the lower layer. The inner ring resistor 1 and the outer ring resistor 2 and the conductive surface 3 which are composed of metal grids are respectively made on the upper and lower sides of the dielectric substrate 4 by using hybrid circuit printing technology. When the electromagnetic wave is incident on the wave-absorbing device, an induced current will be generated on each resistance strip, and finally the electromagnetic energy will be converted into heat energy and dissipated.

[0026] The substrate 4 is a single piece of optically transparent quartz glass, the light transmittance of which can reach 93%, and it is optically transparent and supports each resistance circuit.

[0027] The inner ring resistor 1 and the outer ring resistor 2 on t...

Embodiment 2

[0029] Antenna is used to illuminate the optically transparent microwave absorbing device integrated with multi-value resistors.

[0030] The multi-valued resistor integrated optical transparent microwave absorbing device proposed by the present invention utilizes hybrid circuit printing technology to make thin-layer resistors with different resistance values ​​composed of metal grids on the same surface of the same substrate, and only uses a single layer The quartz substrate, in the case of ensuring a wide absorption bandwidth, makes the thickness of the device only 1-5mm, and the light transmittance can reach 89%.

[0031] Use the antenna to irradiate the optically transparent microwave absorbing device integrated with multi-value resistors, the specific steps are as follows:

[0032] (1) In the TM polarization mode, the electromagnetic wave is incident on the absorbing device at 5°;

[0033] The specific steps are: put the wave absorbing device vertically on the ground, th...

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Abstract

The invention discloses a multi-value resistor integrated super-structure broadband optical transparent microwave absorbing device, and belongs to the technical field of electromagnetic stealth. The device sequentially comprises a conductive surface, a substrate and an upper layer surface from bottom to top. The upper layer surface is a hollow square-shaped thin layer consisting of an inner ring resistor and an outer ring resistor, wherein the outer ring resistor is positioned on the outer ring of the inner ring resistor, and the conductive surfaces of the inner ring resistor, the outer ring resistor and the lower layer surface are conductive metal grid loops. According to the invention, loops with different resistance values are made on the same plane of the substrate by using a hybrid circuit printing technology, and the degree of freedom of the structure in the plane is increased, so that the complexity of an equivalent circuit is increased equivalently, and the purpose of greatly reducing the thickness of the whole device under the condition of keeping the wave-absorbing bandwidth to meet the requirements is achieved. According to the optically transparent broadband meta-material microwave absorber provided by the invention, 89% of light transmittance and 0.07 wavelength thickness are realized in an experiment by using a hybrid circuit printing technology.

Description

technical field [0001] The invention belongs to the field of electromagnetic stealth technology, and specifically relates to a microwave absorbing device composed of a transparent metal conductive grid and a transparent substrate, and resistive strips with different resistance values ​​are made on the same substrate plane by hybrid circuit printing technology, thereby realizing optical transparency Absorbing device for broadband microwave absorbing. [0002] technical background [0003] Optically transparent metamaterial wave-absorbing devices have been used in many fields, such as electromagnetic shielding and electromagnetic interference protection, because they can absorb electromagnetic waves and transmit visible light at the same time. Uniform transparent conductive materials, such as indium tin oxide (ITO) and graphene, facilitate the realization of transparent absorbing devices because of their high light transmittance and microwave conductivity at the same time. [...

Claims

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Application Information

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IPC IPC(8): H01Q17/00
CPCH01Q17/00
Inventor 孙洪波董复延徐速
Owner JILIN UNIV