Analysis of electromagnetic shielding effectiveness of plain conductive cloth at different frequencies

With the increasing popularity of modern electronic devices, the demand for electromagnetic shielding materials has become increasingly important. Plain conductive fabric is an important materialelectromagnetic shielding materialIt plays an important role in ensuring the performance of electronic devices and user health. This article will be developed by Advanced Institute (Shenzhen) Technology Co., LtdYanbo brand plain conductive clothFor example, explore its electromagnetic shielding effectiveness at different frequencies and provide relevant reference and experimental data.

1、 Overview

Electromagnetic radiation may not only have negative effects on human health, but also cause interference to electronic devices themselves, reducing their operational efficiency and safety. Therefore, developing efficient and environmentally friendly electromagnetic shielding materials has become an important topic in current materials science research. Advanced Institute (Shenzhen) Technology Co., Ltd., with its profound accumulation in the field of materials science, has successfully developed the Yanbo brand plain conductive cloth, which has excellent electromagnetic shielding performance.

2、 Materials and Methods

2.1 Materials

Yanbo brand plain conductive cloth is a type of fabric developed based on advanced nanotechnology and composite processesNew type of electromagnetic shielding materialBy chemically depositing or physically transferring nickel metal onto polyester fibers, and then plating a highly conductive copper layer on top of the nickel, and finally electroplating nickel metal that is resistant to oxidation and corrosion, the Yanbo brand plain weave conductive cloth achieves high conductivity and good electromagnetic shielding effect.

2.2 Testing Methods

The testing equipment includes vector network analyzer E5080, amplifier DR0140, coaxial SE testing device DR-S01, and small window SE testing box DR-S08. The testing is conducted in accordance with ASTM D4935-2010, GJB 8820-2015, and GB/T 30142 standards, with a testing frequency range of 10kHz to 40GHz.

3、 Experimental results and analysis

3.1 10kHz to 1GHz frequency band

In the frequency range of 10kHz to 1GHz, Yanbo brand plain conductive cloth exhibits excellent electromagnetic shielding performance. By connecting the test cable and test fixture, set the test parameters to 10kHz to 1GHz, and use the DR-S01 coaxial SE testing device for testing. The experimental results show that the shielding effect of Yanbo brand plain conductive cloth in this frequency band reaches 60dB to 80dB, demonstrating strong electromagnetic shielding ability.

3.2 1GHz to 40GHz frequency band

In the frequency range of 1GHz to 40GHz,Yanbo brand plain conductive clothThe electromagnetic shielding effectiveness has been further improved. Use the small window SE test box DR-S08 for testing, with test parameters set to 1GHz to 18GHz and 18GHz to 40GHz, respectively. The experimental results show that the shielding effect of Yanbo brand plain conductive cloth reaches over 90dB in the frequency range of 1GHz to 18GHz; In the frequency range of 18GHz to 40GHz, the shielding effect is as high as 120dB (at 10GHz).

4、 Material properties and applications

The high conductivity, high shielding, and good processing performance of Yanbo brand plain conductive cloth make it widely applicable in various fields. High conductivity is achieved by optimizing the dispersion and particle size distribution of copper powder, ensuring the uniformity and stability of the material. High shielding can effectively absorb and reflect electromagnetic radiation, significantly reducing mutual interference between electronic devices. In addition, Yanbo brand plain conductive cloth also has good processing performance and can be easily coated on various substrates to form a uniform electromagnetic shielding layer.

In the field of consumer electronics, Yanbo brand plain conductive cloth can be used for electronic devices such as mobile phones and tabletsElectromagnetic ShieldingEffectively protect users from electromagnetic radiation. In the aerospace field, this material can be used for electromagnetic shielding of aircraft, satellites and other equipment, improving the anti-interference ability and operational safety of the equipment. In the military field, the research platinum brand plain conductive cloth can be used for electromagnetic shielding of radar, communication and other equipment, enhancing the concealment and survivability of the equipment.

5、 Conclusion

Through the experiments and analysis in this article, the following conclusions can be drawn:

1. Yanbo brand plain conductive cloth exhibits excellent electromagnetic shielding performance in the frequency range of 10kHz to 40GHz.
2. In the frequency range of 10kHz to 1GHz, the shielding effect reaches 60dB to 80dB; In the frequency range of 1GHz to 40GHz, the shielding effect can reach over 90dB, and even 120dB at 10GHz.
3. Yanbo brand plain conductive cloth has a wide range of application prospects and can be used for electromagnetic shielding in consumer electronics, aerospace, military and other fields.

In the future, with the continuous progress of materials science, the performance of platinum brand plain conductive cloth is expected to be further improved, bringing more development opportunities to the field of electromagnetic shielding.

The above data is for reference only, and specific performance may vary due to production processes and product specifications.