“…When electromagnetic radiation exceeds a certain range, it will seriously affect the human immune system and damage health. − In fact, most people’s lives are surrounded by various electronic devices, such as mobile phones, laptops, tablet computers, microwave ovens, etc., which makes people’s living environments seriously affected by electromagnetic waves. − Serious electromagnetic interference could also affect radar, wired electrical equipment, communication, and navigation systems, which could easily lead to equipment failures and safety accidents. On the other hand, stealth materials play an important role in the military field. , The world’s military powers have invested a lot of research in the field of stealth and have made certain progress, such as radar stealth, aircraft stealth, and military weapon stealth. , The main way to achieve stealth technology is to reduce the radar cross section and reduce its own infrared radiation. , Furthermore, the key to the realization of stealth technology is to design materials suitable for weapons and coat these materials on the surface of weapons to reduce the radar cross section and absorb the electromagnetic wave incident on the surface of weapons, so that weapons and equipment could achieve stealth. Therefore, whether in the military field or the civilian field, research on microwave absorption materials with excellent performance has become an urgent need on today’s society. ,,− …”