초록 ▼

An electromagnetic wave absorber includes a ground layer made of a metal conductor, a dielectric layer formed on the ground layer, and a unit cell pattern made of a resistive material, and formed on the dielectric layer. The unit cell pattern includes a fundamental patch having a regular square shap

An electromagnetic wave absorber includes a ground layer made of a metal conductor, a dielectric layer formed on the ground layer, and a unit cell pattern made of a resistive material, and formed on the dielectric layer. The unit cell pattern includes a fundamental patch having a regular square shape, in which a rectangular recess is formed on the center of each of the respective sides, the fundamental patch being located at the center of each of the unit cell pattern, and half cross dipole patches, which are respectively disposed at the four sides of the fundamental patch at a regular angle so as to be engaged with the recesses formed on the respective sides of the fundamental patch at a regular interval.

대표청구항 ▼

What is claimed is: 1. An electromagnetic wave absorber having a plurality of unit cells, each of the unit cells comprising:a ground layer made of a metal conductor;a dielectric layer formed on the ground layer; anda unit cell pattern made of a resistive material, and formed on the dielectric layer,

What is claimed is: 1. An electromagnetic wave absorber having a plurality of unit cells, each of the unit cells comprising:a ground layer made of a metal conductor;a dielectric layer formed on the ground layer; anda unit cell pattern made of a resistive material, and formed on the dielectric layer,wherein:the unit cells are classified into at least two different types of unit cells, each of said different types being determined by surface resistance values of the unit cell patterns; andsaid different types of unit cells are alternately arranged, and unit cell patterns of neighboring unit cells have different surface resistance values from each other.