A waveguide integrated artificial surface plasmon device and a filter integrated waveguide substrate

Abstract

The invention discloses a waveguide of an artificial surface plasmon device and a filter of a substrate-integrated waveguide, including an artificial surface plasmon waveguide and a substrate-integrated waveguide; the substrate-integrated waveguide includes a first dielectric substrate sheet, a first metallization layer, and the first dielectric substrate is provided with two rows of metallization via holes; the artificial surface plasmon waveguide includes a second dielectric substrate, a second metallization layer, and the second metallization More than one metal groove is arranged on the layer, and the depth of the metal groove is arranged in increasing order from both sides to the middle, and the depth of the metal groove increases until it is the same as the thickness of the second metallization layer. The opening direction of the metal groove of the second metallization layer is opposite. The filter of the present invention has the advantages of easy processing, low cost, thin thickness, light weight, etc., and it is convenient to make common circuits, and has high practical value; meanwhile, it also provides ultra-wideband and narrowband filters, all of which have achieved good filtering performance.

Description

technical field [0001] The invention relates to a filter combined with a waveguide of an artificial surface plasmon device and a waveguide integrated on a substrate, and belongs to the field of new artificial electromagnetic materials. Background technique [0002] New artificial electromagnetic materials (Metamaterials) refer to artificial composite materials with special conduction or radiation characteristics when electromagnetic waves propagate in them. It can also be said to be an electromagnetic material that can be artificially designed to meet specific equivalent permittivity and permeability requirements. . The new artificial electromagnetic material is based on the equivalent medium theory, that is, the equivalent permittivity and permeability can be changed by changing the size of the unit structure of the new artificial electromagnetic material. After more than ten years of development, new artificial electromagnetic materials have been greatly developed, and th...

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Problems solved by technology

[0004] Most of the existing surface plasmon filters are made by using the characteristics of the periodic folded structure, and the structure size is large, which is subject to many restrictions in practical applications.

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