Waves-absorbing material for Ku waveband radar with film structure

Abstract

The invention relates to a wave-absorbing material for a Ku waveband radar with a film structure, mainly comprising six wave-absorbing material layers and five plastic films, wherein the plastic films are arranged between every two wave-absorbing material layers of the six wave-absorbing material layers; the first wave-absorbing material layer is a mixture of 1.50 parts of coupling agents, 50 parts of diluents, 150 parts of ferrites and 53.67 parts of 60% epoxy resins; the second wave-absorbing material layer is a mixture of 1.50 parts of the coupling agents, 50 parts of the diluents, 150 parts of carbonyl iron absorbents, 39.83 parts of the 60% epoxy resins and 12.93 parts of curing agents; the third wave-absorbing material layer is a mixture of 1.50 parts of the coupling agents, 50 parts of the diluents, 150 parts of the carbonyl iron absorbents, 109.02 parts of the 60% epoxy resins and 33.10 parts of the curing agents; and the fourth wave-absorbing material layer, the fifth wave-absorbing material layer and the sixth wave-absorbing material layer are mixtures of 1.50 parts of the coupling agents, 50 parts of the diluents, 150 parts of the carbonyl iron absorbents, 39.83 parts of the 60% epoxy resins and 12.93 parts of the curing agents. The wave-absorbing material combines an impedance gradual change principle with an electromagnetic wave trap principle, has high wave-absorbing property within a Ku waveband range, little thickness, low surface density, light weight and good mechanical property and is suitable for resisting the Ku waveband radar.

Description

technical field [0001] The invention relates to a radar wave-absorbing material, in particular to a radar wave-absorbing material with a film structure for absorbing the Ku wave band. Background technique [0002] The Ku band is mainly used for satellite communications, especially for broadcasting satellite TV. The operating frequency bands of existing satellite detection radars and airborne radars are generally in the ku band. For the performance of the radar itself, the key issue is how to eliminate clutter interference and improve detection accuracy. The most direct and effective method is to use absorbing materials to reduce Clutter interference; and in the military, it is necessary to reduce the radar cross section (RCS) to fight against this type of radar. The application of wave-absorbing materials is a simple and effective method to reduce the radar cross section. At present, the frequency band of the ku-band absorbing material is relatively narrow, the absorbing pe...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the unsatisfactory absorbing effect of the microwave-absorbing material in the prior art for absorbing Ku-band electromagnetic waves, high surface density and heavy weight of the wave-absorbing material, the purpose of the present invention is to provide a low-area density, light weight, electromagnetic wave-absorbing Thin-film structure absorbing material with an absorption rate of over 95%

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