Product introduction
FRA high-power polyurethane absorbing material irradiates electromagnetic waves to the target and receives echoes, thus obtaining information such as the distance, velocity, azimuth and height of the target.That is, if the target does not reflect electromagnetic waves, or if the reflected electromagnetic waves are not picked up by the radar, the radar can become "blind".This is the basic theoretical basis of stealth aircraft, or stealth weapons in a broad sense, to achieve stealth.A polyurethane full-bore sponge with a diameter of about 2mm is adopted, which is larger and stronger than SA aperture.Due to excellent air fluidity and permeability, it can cool down quickly and dissipate heat well, so it can bear more power.Can be used in the outdoor, after the water can be quickly drained, rapid drying;The weather resistance and aging resistance are better than SA.
There are two basic requirements for absorbing materials:
1. Strong absorption capacity of electromagnetic wave
2. Wide coverage frequency range