Copper Blocks Radio Frequencies

Based on the search results, copper is effective at blocking or shielding radio frequency (RF) radiation.

This is due to its ability to:

• Absorb radio and magnetic waves

• Attenuate magnetic and electrical waves

• Conduct electricity, heat, and electromagnetic radiation

• Reflect and absorb RF waves, interfering with their transmission

Copper is commonly used in various applications to block RF radiation, such as:

• Hospital MRI machines

• Computer equipment and server rooms

• Wire mesh constructions, which can completely block both radio and microwave radiation

The thickness of the copper mesh does not significantly impact its effectiveness in blocking RF radiation. However, other materials like aluminum foil or aluminum mesh may be more cost-effective alternatives.

In some cases, copper is used in combination with other metals, such as brass (an alloy of copper and zinc), to create effective EMI/RFI shields for applications like medical devices, electrical contacts, and RF connectors.

In summary, copper is a reliable material for blocking radio frequency radiation, making it a popular choice for various applications where RF shielding is necessary.