Isotropic metamaterial with high dielectric constant
A high dielectric constant and isotropic technology, applied in the field of metamaterials, can solve problems such as limited and limited range of size changes, and achieve the effects of stable dielectric constant, increased dielectric constant and refractive index, and increased length
Active Publication Date: 2015-05-27
KUANG CHI INST OF ADVANCED TECH +1
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Therefore, in a limited space, the range of size change of mutually perpendicular metal lines in the "ten" shaped artificial microstructure is limited, so the range of changeable dielectric constant is also limited.
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[0034] The invention provides a novel isotropic metamaterial. Compared with the existing metamaterial, the dielectric constant of the metamaterial is improved by changing the topological shape of the artificial microstructure.
[0035] Such as image 3 As shown, the metamaterial includes at least one substrate 1 with uniform thickness. If there are multiple substrates 1, the substrates 1 are stacked in sequence along the direction perpendicular to the plane of the substrate (z-axis direction), and are assembled or placed between every two substrates 1. The gap is filled with a substance that can connect the two, such as a liquid substrate material, which will bond the two existing substrates 1 after curing, so that multiple substrates 1 form a whole. The substrate 1 can be made of high dielectric constant ceramic materials such as FR-4, F4b, CEM1, CEM3 or TP-1.
[0036] Each substrate 1 is virtually divided into a plurality of identical cubic substrate units next to each othe...
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The invention relates to an isotropic metamaterial with a high dielectric constant. The isotropic metamaterial comprises a substrate and an artificial microstructure adhering to the substrate, the artificial microstructure comprises four branches with a common intersection point, one end of any branch is connected with the intersection point, the other end of any branch is a free end, each branch comprises at least one bending portion, any branch with the intersection point serving as a circle center sequentially and clockwise rotates for 90 degrees, 180 degrees and 270 degrees to coincide with other three branches respectively. According to the isotropic metamaterial with the high dielectric constant, the dielectric constant of the isotropic metamaterial with the artificial microstructure is substantially increased, the metamaterial can be applied to fields of antenna and semiconductor manufacture and the like, and besides, by means of the technical scheme, the defect that the dielectric constant is limited in unit volume in prior art is overcome so that the metamaterial has an immeasurable effect on the miniaturization of microwave devices.
Description
technical field [0001] The invention relates to the field of metamaterials, more specifically, to an isotropic metamaterial with high dielectric constant. Background technique [0002] The dielectric constant is a parameter of the response of the material to the electric field. When the material is applied with an electric field, it will generate induced charges and weaken the electric field. The ratio of the applied electric field in the original vacuum to the electric field in the final material is the dielectric constant. [0003] In nature, any material has its specific dielectric constant value or dielectric constant curve under certain conditions. When a material with a higher dielectric constant is placed in an electric field, the strength of the electric field will drop considerably within the dielectric material. Materials with high dielectric constants, such as dielectric insulators, are often used to make capacitors. Moreover, in high dielectric constant materia...
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IPC IPC(8): H01Q15/00
Inventor 刘若鹏栾琳寇超峰
Owner KUANG CHI INST OF ADVANCED TECH