Generally the materials can be grouped according their interaction with microwaves
Author: langfeng Time: 2020-08-21
Generally the materials can be grouped according their interaction with microwaves in three groups:
Conductors: materials have loosely bound electrons (one or two) in the outer (valence) shell that can move
easily under the influence of a voltage to form current. Conductors include elemental meta ls such as copper,
gold, silver or aluminium. They are used to conduct microwaves through coaxial cables or waveguides.
Insulators: behave almost transparent to microwaves. Insulators include glass, plastic, rubber, silicon dioxide,
silicon nitride and very commonly used Teflon。
Absorbers: are lossy materials or dielectrics which absorb microwaves.