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Brief introduction of magnetic antenna |
| Author： Date：2016/7/27 10:53:23 |
The characteristics of magnetic materials loaded with magnetic permeability and dielectric coefficient of certain.
In general, the magnetic material, its permeability is greater than 1, dielectric material, its dielectric coefficient is greater than 1. The traditional magnetic materials, emphasizing its permeability greater than 1, but not the characterization, also do not consider the dielectric coefficient.
In electromagnetism, the permeability is a kind of material which is a linear response to an applied magnetic field. The permeability is usually expressed in the Greek letter. The form was created by Oliver Heviside in September 1885. In the engineering of magnetic materials, the relative permeability is used to characterize the material parameters. Dielectric coefficient, the capacitance ratio, indicates the index of material storage charge capacity. In this paper, the magnetic antenna is an antenna that is loaded with magnetic materials (magnetic permeability is greater than or equal to 1) and dielectric material (dielectric coefficient is greater than 1). Because these two parameters are calculated in the antenna index, the product of the two is called the wave factor of the antenna. The relationship between the two is that it can be exchanged. |