EMI Shielding Materials; Prevent Damages to Electronic Devices Due to Electromagnetic Interference
EMI shielding materials are materials used to prevent
damages to the electronic devices/equipment due to electromagnetic
interference. EMI shielding (electromagnetic interference shielding) refers to
the shielding of radio wave or microwave radiation so that radiation
essentially cannot penetrate the shield, which serves as a radiation barrier.
The main purpose of shielding is to prevent EMI or radio frequency interference
(RFI) from impacting sensitive electronics. EMI shielding materials or solutions
help protect a device from external radiation and prevent that device from
emitting radiation that could cause interference with other devices.
Global
EMI shielding materials market
was valued at US$ 8.01 Bn in 2021 in
terms of revenue, exhibiting a CAGR of
5.67 % during the forecast period (2022 to 2030).
EMI shielding is the use of manufacturing techniques
and materials to protect signals from being disrupted by external
electromagnetic signals and preventing generated signals from interfering with
surrounding components. It is process of reducing interference from external
electromagnetic signals that can disrupt function of electronic devices.
Of all the metals in EMI shielding, copper
is the most reliable because it works best at reducing both magnetic and
electrical waves. One can find copper in just about any place needing EMI
shielding from hospital equipment to basic home computers. It is highly
effective in attenuating magnetic and electrical waves.
Electromagnetic interference (EMI) can affect any type
of electronic device, including cell phone. EMF shielding devices for cell
phones protects cell phones by reducing amount of electromagnetic waves coming
from the phone and blocking incoming interference. With the help of EMI
shielding devices, a cell phone is less likely to affect surrounding devices,
and surrounding devices are less likely to affect the cell phone. An array of
digital chips (installed inside the phone) are shielded, allowing phone to
function normally while still receiving adequate protection. A shielding protects the parts of phone that control
wireless LAN, radio frequency, and Bluetooth.
EMI Shielding in electronic devices is the use of
manufacturing techniques and materials to protect signals from being disrupted
by external electromagnetic signals as well as preventing generated signals
from interfering with surrounding components. EMI
shielding materials help to block the incoming interference
while also limiting EMI leaking from parts of a device. The shield surrounds either sensitive electronics or
transmitting electronics in the device. As signals reach a device, the screen
absorbs them, causing the current within its body. Due to high conductivity, metals like copper, gold,
silver, nickel, and aluminum are frequently used in EMI shielding.
EMI shielding is the practice of using various
countermeasures to protect electrical and electronic devices from EMI. Thus,
there is an increase in demand for EMI shielding materials worldwide,
especially in the U.S. and India due to increase in demand for electronic
devices.
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