How to evaluate the electromagnetic shielding effectiveness of PI gold-plated film? What electromagnetic environments are applicable?

1、 Method for evaluating the electromagnetic shielding effectiveness of PI gold-plated film

1. Definition and testing principle of shielding effectiveness

Electromagnetic shielding effectiveness(SE) is a key indicator for measuring a material's ability to attenuate electromagnetic waves, defined as the decibel value (dB) of the ratio of incident power to transmitted power. The SE evaluation of PI gold-plated film is usually carried out using a vector network analyzer (VNA), which measures the reflectivity (R), absorptivity (A), and transmittance (T) of the material at different frequencies, and calculates the SE value comprehensively.

2. Experimental design and data comparison

Experimental design: Select PI gold-plated film samples, set multiple frequency points (such as 10MHz to 3GHz), and measure their SE values using VNA. Meanwhile, parallel experiments were conducted under the same conditions to compare traditional metal shielding materials such as copper plates.

Data comparison: The experimental results show that,PI gold-plated filmThe SE value in the frequency range of 10MHz to 3GHz is over 70dB, significantly better than the average SE value of traditional copper plates (about 50dB). This indicates that the PI gold-plated film has superior electromagnetic shielding performance in the high frequency range.

3. Experimental data and reference standards

According to national standards such as GB/T 30142-2013 "Measurement method for shielding effectiveness of planar electromagnetic shielding materials",Advanced Institute (Shenzhen) Technology Co., LtdA series of experiments were conducted. In the experiment, a vector network analyzer was used to scan and test the PI gold plating film in the frequency range of 30MHz to 3GHz. The results show that the material performs well in the high frequency range, with an average shielding effectiveness of over 80dB, effectively blocking the penetration of most electromagnetic waves.

To further verify its performance, the company also conducted comparative experiments with non gold-plated PI film. The results showed that under the same testing conditions, the shielding effectiveness of the gold-plated PI film increased by about 30%, indicating a significant improvement in electromagnetic shielding performance of the gold-plated treatment.

2、 Application of PI Gold Plating Film in Multivariate Electromagnetic Environment

1. Wireless communication equipment

In 5G and future 6G wireless communication systems, high-frequency communication has become a trendelectromagnetic shielding materialHigher requirements have been put forward. PI gold-plated film is an ideal choice for improving signal integrity and reducing electromagnetic interference in communication equipment due to its low surface impedance (0.02 Ω) and excellent shielding effectiveness. Research by Advanced Institute (Shenzhen) Technology Co., Ltd. shows that communication equipment using PI gold-plated film performs more stably in complex electromagnetic environments and significantly improves signal transmission efficiency.

2. Aerospace field

The electronic components inside spacecraft have extremely high requirements for electromagnetic shielding. PI gold-plated film not only has excellent electromagnetic shielding performance, but also has good insulation and high temperature resistance, making it an ideal protective material for electronic components inside spacecraft. Experimental data shows that under high temperature (≥ 350 ℃) conditions, the conductivity and shielding effectiveness of PI gold plating film remain stable, far superior to traditional metal shielding materials.

3. Medical equipment

The application of PI gold plating film in medical equipment is also worth paying attention to. Its excellent electromagnetic shielding performance can effectively prevent external electromagnetic interference from affecting medical equipment, ensuring precise operation of the equipment. In addition, by precisely controlling the thickness of the gold plating layer, PI gold plating film can also be used as a drug carrier to achieve precise drug release and efficient treatment, bringing innovative possibilities to the medical field.

3、 Process comparison and future prospects

1. Process comparison

Compared to traditionalMetal shielding material， The PI gold plating film adopts advanced physical vapor deposition (PVD) and other coating technologies, which can uniformly and densely deposit a thin layer of metal on the surface of the PI film, not only improving the conductivity and shielding effectiveness of the material, but also retaining the flexibility and lightweight characteristics of the PI substrate. This unique preparation process gives PI gold-plated film significant advantages in processability, scalability, and other aspects.

2. Future prospects

With the continuous advancement of technology, the application prospects of PI gold plating film in the field of electromagnetic shielding will be even broader. In the future, by further optimizing the preparation process and material formula, the shielding effectiveness and comprehensive performance of PI gold plating film are expected to be further improved, meeting more diverse and higher requirements for electromagnetic environments. At the same time, with the rapid development of new energy, intelligent manufacturing and other fields, PI gold-plated film will also usher in a broader market space.

conclusion

PI gold-plated filmAs a high-performance composite material that combines high conductivity, excellent shielding effectiveness, and good heat resistance, it is gradually becoming a new favorite in the field of electromagnetic shielding. Through scientific evaluation methods and extensive application practices, PI gold plating film is constantly demonstrating its unique advantages and unlimited potential in complex electromagnetic environments. The continuous exploration and innovation of research institutions such as Advanced Institute (Shenzhen) Technology Co., Ltd. will inject strong impetus into the future development of PI gold plating film.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.