Wave-transparent material and radome based on artificial metal microstructure unit
A technology of man-made metal and wave-transmitting material, applied in the direction of radiation unit cover, antenna, electrical components, etc., can solve the problems of loss, electromagnetic wave reflected energy, etc., to achieve the effect of impedance matching, increase transmission, and reduce return loss
Active Publication Date: 2017-02-08
KUANG CHI INST OF ADVANCED TECH
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a wave-transmitting material based on artificial metal microstructure units for the defects of electromagnetic wave reflection and energy loss due to impedance mismatch in the prior art when electromagnetic waves propagate from air to adjacent media
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[0020] see figure 1 and figure 2 , the present invention provides a wave-transparent material based on artificial metal microstructure units, the material includes a plurality of material sheets, each material sheet includes a substrate 1, two cladding plates 2 and sandwiched between the substrate 1 and the The artificial metal microstructure 3 in the middle of the cladding plate 2, the substrate 1 is made of ceramic material, polytetrafluoroethylene material, ferroelectric material, ferrite material, ferromagnetic material or is FR-4 epoxy glass cloth layer platen. In this embodiment, the substrate 1 is a FR-4 epoxy glass cloth laminated board, which has low price, good adhesion, low moisture absorption, good insulation, good flame resistance, good stability, and good electrical performance Etc.
[0021] The substrate 1 is virtually divided into a plurality of substrate units arranged in an array, and each substrate unit is attached with an artificial metal microstructure...
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Abstract
The invention relates to a wave-transmitting material based on an artificial metal microstructure unit and a radome. The wave-transmitting material comprises at least one material piece layer, wherein each material piece layer comprises a substrate, a cladding plate and the artificial metal microstructure unit clamped between the substrate and the cladding plate, each substrate is virtually divided into multiple substrate units arranged in an array mode, each substrate unit is adhered to one artificial metal microstructure, each artificial metal microstructure comprises two connecting arms which are mutually connected in forward direction, end portions of the connecting arms extend to two sides to form extending arms, and end portions of the extending arms are bent outwards to form crank arms. The relative dielectric constant, the refractive index and impedance of the material are changed through changing of the shape and the size of the artificial metal microstructures, and thus the fact that impedance of the material is matched with impedance of air is achieved to increase transmission of incident electromagnetic waves to the maximum degree. Therefore, reflection when the incident electromagnetic waves enter the material from the air is reduced, namely return loss of the incident electromagnetic waves is reduced.
Description
technical field [0001] The invention relates to a material and a radome, more specifically, to a wave-transmitting material and a radome based on an artificial metal microstructure unit. Background technique [0002] If the electromagnetic wave passes through materials with different impedances during transmission, it will be reflected at the interface. In order to reduce the reflection of electromagnetic waves and reduce energy loss, impedance matching needs to be considered in the transmission of electromagnetic waves. [0003] Metamaterial is a new type of artificial synthetic material, including an artificial microstructure with a certain pattern shape composed of metal wires and a substrate to which the artificial microstructure is attached. Multiple artificial microstructures are arranged in an array on the substrate. Playing a supporting role, it can be any material different from the artificial microstructure. The superposition of these two materials will produce an...
Claims
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IPC IPC(8): H01Q15/00H01Q1/42
Inventor 刘若鹏赵治亚易翔牛攀峰
Owner KUANG CHI INST OF ADVANCED TECH