What is a microwave darkroom?

Microwave anechoic room, also known as anechoic room, wave absorbing room and anechoic room. When electromagnetic waves are incident on walls, ceilings and the ground, most of them are absorbed, while few are transmitted and reflected. Microwave also has some characteristics of light. With the help of the meaning of optical darkroom, it is named microwave darkroom. Microwave anechoic room is a special room composed of absorbing material s a and metal shield, which provides an artificial "free space" condition. Testing wireless communication products and electronic products such as antenna and radar in darkroom can avoid clutter interference and improve the testing accuracy and efficiency of the tested equipment. With the development of electronic technology, microwave darkroom is understood and applied by more people.

Microwave anechoic room is a closed space made of absorbing materials, so that a pure electromagnetic environment can be created in the anechoic room, which is convenient to eliminate external electromagnetic interference.

The materials of microwave anechoic chamber can be all kinds of absorbing materials, and the main material is polyurethane absorbing sponge SA (high frequency use). In addition, when testing the electromagnetic compatibility of electronic products, ferrite absorbing materials will also be used because the frequency is too low.

The main working principle of microwave anechoic chamber is that according to the law of electromagnetic wave propagation from low permeability to high permeability in medium, electromagnetic wave is guided by high permeability absorbing materials, and a large amount of radiation energy of electromagnetic wave is absorbed by vibration, and then the energy of electromagnetic wave is converted into heat energy by coupling.