Absorbing material, Shielding material, Electromagnetic shielding, Magnetic sheet, ferrite sheet.
News Center
Your present position:Home-News Center-What is the principle of electromagnetic wave absorption by ferrite sheet? Back >

What is the principle of electromagnetic wave absorption by ferrite sheet?

Author:admin   AddTime:2021-06-22

The absorbing material is a kind of functional composite material that mainly absorbs electromagnetic waves, which eliminates the back and forth reflection of electromagnetic waves in the shielding cavity, reduces the interference of clutter to its own equipment, and effectively prevents electromagnetic radiation from harassing and harming surrounding equipment and personnel. An advanced method to eliminate electromagnetic wave pollution. Commonly used thicknesses include: 0. 08mm 0. 1mm 0. 2mm 0. 3mm In handheld devices such as NFC payment mobile phones, electronic tags must be integrated or attached to the electronic device to function as a component of the device, often due to limited space , It is inevitable to stick RFID tags (usually passive) on the surface of conductive objects such as metals or on places with metal devices nearby.



In this way, the alternating electromagnetic field induced by the tag under the action of the signal from the reader is easily attenuated by the eddy current of the metal, which greatly weakens the signal strength, causing the reading process to fail. Therefore, in order for the product to be able to better use the card reader, it is necessary to add absorbing materials to the product. The wireless charger transforms a 220V power supply into a sympathetic electromagnetic field, and then after the sympathetic electromagnetic field generates a sympathetic electromagnetic field, the sympathetic electromagnetic field turns into a current for charging; when the sympathetic electromagnetic field encounters metal, the product will produce electronic eddy current, and the electronic eddy current will tend to the metal. The skin effect generates heat energy on the metal, which reduces the charging efficiency and wastes electrical energy.
And it interferes with the circuit board and affects the normal operation of the entire charger. Using a wave absorbing material to provide a loop for the sympathetic magnetic field through high magnetic flux, which can improve efficiency.

ferrite sheet:https://www.goodsmaterial.com/

Related Articles
The high permeability of shallow of absorbing materials plant absorbing material application

The high permeability of shallow of absorbing materials plant absorbing material application

2021-06-22

First of all, let's see what is high permeability absorbing material: high permeability refers to the…

Analysis of three functions of flexible Ferrite separator on wireless charging Coil in Absorbing Material factory?

Analysis of three functions of flexible Ferrite separator on wireless charging Coil in Absorbing Material factory?

2021-06-22

I have written a lot about the role of ferrite tablets before. Today, I will summarize the three main…

Here are five common NFC ferrite tablets on the market

Here are five common NFC ferrite tablets on the market

2021-06-22

Follow the footsteps of xiaobian, today summarized the next market common in 5 NFC ferrite tablets, I…

Leave A Message

Just tell us your requirements, We can do more than you can imagine.

Links: Bluetooth Speaker Passive Speaker Wooden Speakers USB Microphone

Shenzhen jingju technology co., LTD., all rights reserved ©2020
Hot Products:ferrite sheet | shielding material | electromagnetic shielding | magnetic sheet | amorphous nanocrystals