An artificial electromagnetic material and a filter using the material
A technology of artificial electromagnetic materials and conductive materials, which is applied in the direction of waveguide devices, circuits, resonators, etc., can solve the problem of large loss of artificial electromagnetic materials, and achieve the effect of reducing resonance frequency and volume
Active Publication Date: 2017-12-19
KUANG CHI INST OF ADVANCED TECH
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide an artificial electromagnetic material with little loss and substantially no influence on the dielectric constant and a filter using the material for the defect of the prior art that the above-mentioned artificial electromagnetic material has a large loss
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[0024] The present invention relates to an artificial electromagnetic material, such as figure 2 As shown, at least one material sheet is included, and each material sheet includes a dielectric substrate 1 and a plurality of artificial microstructures 2 attached on the surface of the dielectric substrate 1 . The dielectric substrate 1 is in the shape of a flat plate, or in the shape of a thin sheet bent into a ring, or in the shape of a grid composed of a plurality of long strips interlocked at right angles. The dielectric substrate 1 usually uses polytetrafluoroethylene, FR-4, epoxy resin, ferrite, SiO 2 , ceramics and other non-metallic materials.
[0025] The artificial microstructures 2 are periodically arranged on the surface of the dielectric substrate 1, for example, arranged in a rectangular array, that is, the rows are arranged in the x direction and the columns are arranged in the y direction perpendicular to the x direction, and the distance between each row and e...
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Abstract
The invention relates to an artificial electromagnetic material. The artificial electromagnetic material comprises a dielectric substrate and a plurality of artificial microstructures, wherein the artificial microstructures are attached to the dielectric substrate and periodically laid out. Each artificial microstructure is formed by arranging a plurality of through holes in a substrate sheet made of conducting materials. The invention further relates to a filter using the artificial electromagnetic material. The artificial electromagnetic material is high in dielectric constant and low in loss. Resonant frequency of the filter using the artificial electromagnetic material is reduced because of the high dielectric constant, and then the size of the filter is also reduced; meanwhile, the filter has a high Q value because of the low loss.
Description
technical field [0001] The invention relates to electromagnetic materials, more specifically, to an artificial electromagnetic material and a filter using the material. Background technique [0002] Artificial electromagnetic material, specifically refers to an artificial material that has a special response to electromagnetic fields, also known as metamaterial, such as figure 1 As shown, it includes a dielectric substrate 10 and artificial microstructures 20 attached to the dielectric substrate 10 and arranged periodically. The dielectric substrate 10 is virtually divided into periodically arranged substrate units according to the same arrangement law as the artificial microstructure, and each artificial microstructure and the substrate unit attached to it together constitute a material unit, then the artificial electromagnetic The material can be regarded as formed by the periodic arrangement of the material units. Artificial microstructures are usually conductive materi...
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IPC IPC(8): H01P1/207H01P7/00
Inventor 刘若鹏徐冠雄刘京京
Owner KUANG CHI INST OF ADVANCED TECH