1. structural design

Usually, a double blade or multi blade finger shaped spring structure is used, which tightly contacts the door frame through multiple layers of springs, effectively reducing electromagnetic leakage at the door gap and ensuring high shielding efficiency in high frequency bands (such as above 1GHz).

The door body is often made of high-strength materials such as tempered glass and stainless steel, balancing safety and aesthetics.

2. Opening method

It supports electric, pneumatic or manual opening. Electric doors are easy to operate and suitable for frequent use. Pneumatic doors have high stability and are suitable for heavy-duty doors. Manual doors have a lower cost and are suitable for small anechoic chambers or low-frequency usage scenarios.

3. Shielding performance requirements

Within the 10kHz-18GHz frequency band, the shielding effectiveness typically needs to reach over 70dB-110dB, with the specific value depending on the usage standards and application scenarios of the anechoic chamber.

4. Maintenance and reliability

Regularly check the elasticity of the spring and the flatness of the door frame to ensure that the shielding performance is not affected. Choosing products with reliable quality and good sealing performance can extend their service life and maintain stable shielding effect. The enhancement of the shielding door in the anechoic chamber is the core component to ensure the electromagnetic shielding performance of the chamber. Its design and selection need to comprehensively consider various factors such as shielding performance, usage requirements, and maintenance costs to ensure that the chamber can meet strict electromagnetic compatibility testing requirements.