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Wave absorbing body structure

A wave absorber and honeycomb structure technology, which is applied in the field of wave absorbers, can solve the problems of high material density and unsatisfactory low surface density, and achieve the effects of reduced thickness, good wave absorption effect, and improved wave absorption performance

Active Publication Date: 2017-03-01
佛山顺德光启尖端装备有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the high-loss material in the absorber in the prior art has a high density and cannot meet the requirements of low surface density, the present invention provides an absorber structure

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0043] Such as figure 1As shown, a absorber structure includes a metal base plate 1 and a layer of electrical loss body 2 covered on one surface of the metal base plate 1. The electrical loss body 2 includes a honeycomb layer 21 and a resistor superimposed on a surface of the honeycomb layer 21. sheet layer 22, and the other surface of the honeycomb layer 21 is in close contact with the metal bottom plate 1. The metal bottom plate 1 is a copper bottom plate, and the honeycomb layer 21 includes a polymer resin sheet and a honeycomb structure distributed on the polymer resin sheet. The thickness of the honeycomb layer 21 is 100 mm. figure 2 is a top view of the resistance sheet layer 22, such as figure 2 As shown, the resistor sheet 22 includes a dielectric substrate 221 located below the resistor sheet and four resistor blocks 222 on the surface of the dielectric substrate 221, the dielectric substrate 221 provides a supporting surface for the four resistor blocks 222, wher...

Embodiment 2

[0045] Such as image 3 As shown, a absorber structure includes a metal base plate 1 and 4 layers of electrical loss bodies 2 covered on one surface of the metal base plate 1, each layer of electrical loss body 2 includes a honeycomb layer 21 and a resistor superimposed on the honeycomb layer 21 The sheets 22, 4 layers of honeycomb layers 21 and 4 layers of resistive sheets 22 are formed by stacking each other alternately. The metal bottom plate 1 is an aluminum bottom plate, and the honeycomb layer 21 includes a polymer resin sheet and a honeycomb structure distributed on the polymer resin sheet. The thickness of each layer of honeycomb layer 21 is 50mm. Starting from the metal base plate 1, the 4 layers of resistance sheets include 4, 6, 5, and 7 oval resistance blocks 223 in sequence. The ellipse resistance blocks 223 in each layer of resistance sheets Shaped resistance blocks 223 are randomly arranged, the size of the resistance sheets in different resistance sheet layers...

Embodiment 3

[0047] An absorber structure includes a metal base plate and 4 layers of electrical loss bodies covered on one surface of the metal base plate, each layer of electrical loss body includes a honeycomb layer and a resistance sheet layer superimposed on the honeycomb layer, 4 layers of honeycomb layers and 4 layers The layer resistor sheets are formed by stacking each other alternately. The metal base plate is a silver base plate, and the honeycomb layer includes a polymer resin sheet and a honeycomb structure distributed on the polymer resin sheet. The thickness of each layer of honeycomb layer from the direction close to the metal bottom plate is 1mm, 10mm, 50mm, 30mm, each of the 4 layers of resistance sheet includes 6 triangular resistance blocks, and the triangular resistance blocks in each layer of resistance sheet The sizes are different, but they are all arranged periodically in an array. Each resistance sheet layer includes a dielectric substrate located below the resis...

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Abstract

The invention provides a wave absorbing body structure comprising a metal base plate and an electrical loss body covering one surface of the metal base plate. Since the electrical loss body has a high dielectric loss, the wave absorbing body structure of the present invention has a good wave absorbing effect in a wide frequency band compared with the absorbing performance of the wave absorbing material of a conventional low-loss multi-layer wave absorbing honeycomb. With the structure of the invention, not only the wave absorbing performance can be increased, but also a low surface density can be achieved for the structure due to the reduced overall thickness of the structure; accordingly, the wave absorbing body structure can be applied in fields requiring bearing and weight reducing.

Description

technical field [0001] The invention relates to a wave absorber, in particular to a wave absorber structure. Background technique [0002] According to the structure and shape, the absorbing materials can be divided into film absorbing materials, flat absorbing bodies, pyramid or wedge absorbing bodies, honeycomb absorbing bodies and so on. Absorbing materials not only require excellent absorbing performance, but also require other properties such as weight, thickness, and bandwidth according to different uses. Therefore, it cannot be expected that one design method can meet all performance requirements. [0003] The absorber structure is an important means of obtaining light-weight broadband absorbing materials. It is generally made of low-density, low-permittivity dielectric materials and resistors. The resistance of the resistors gradually decreases from the surface to the ground metal plate. , by changing the effective impedance along the thickness direction of the abso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00H05K9/00
Inventor 不公告发明人
Owner 佛山顺德光启尖端装备有限公司
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