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2. Electromagnetic shielding - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_shielding

   Electromagnetic shielding that blocks radio frequency (RF) electromagnetic radiation is also known as RF shielding. EMF shielding serves to minimize electromagnetic interference . The shielding can reduce the coupling of radio waves, electromagnetic fields, and electrostatic fields .

3. Faraday cage - Wikipedia

   en.wikipedia.org/wiki/Faraday_cage

   Faraday cage demonstration on volunteers in the Palais de la Découverte in Paris EMI shielding around an MRI machine room Faraday shield at a power plant in Heimbach, Germany. A Faraday cage or Faraday shield is an enclosure used to block some electromagnetic fields.

4. Electromagnetic interference - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_interference

   Interference with the meaning of electromagnetic interference, also radio-frequency interference (EMI or RFI) is – according to Article 1.166 of the International Telecommunication Union ' s (ITU) Radio Regulations (RR) [8] – defined as "The effect of unwanted energy due to one or a combination of emissions, radiations, or inductions upon ...

5. Electromagnetic compatibility - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_compatibility

   A single improvement will often reduce both emissions and susceptibility. Grounding and shielding aim to reduce emissions or divert EMI away from the victim by providing an alternative, low-impedance path. Techniques include: Grounding or earthing schemes such as star earthing for audio equipment or ground planes for RF. The scheme must also ...

6. Line filter - Wikipedia

   en.wikipedia.org/wiki/Line_filter

   A line filter (aka EMC filter, EMI filter, RFI filter) is an electronic filter that is placed between the mains electricity input and internal circuitry of electronic equipment to attenuate conducted radio frequencies radio frequency interference (RFI), also known as electromagnetic interference (EMI). [1]

7. Radiation-absorbent material - Wikipedia

   en.wikipedia.org/wiki/Radiation-absorbent_material

   A large drive-in RF anechoic test chamber. Note the orange caution cones for size reference. Pyramid RAM. The grey paint helps to protect the delicate radiation-absorbent material. One of the most effective types of RAM comprises arrays of pyramid-shaped pieces, each of which is constructed from a suitably lossy material. To work effectively ...

8. Via fence - Wikipedia

   en.wikipedia.org/wiki/Via_fence

   Via fences shielding the edge of a printed circuit Via fences are used primarily at RF and microwave frequencies wherever planar formats are being applied. They are used in printed circuit technologies such as microstrip, ceramic technologies such as low temperature co-fired ceramic , monolithic microwave integrated circuits , and system-in-a ...

9. 807 (vacuum tube) - Wikipedia

   en.wikipedia.org/wiki/807_(vacuum_tube)

   The 807 design (with some "value engineering" to reduce production cost) was the basis for the first application-specific horizontal sweep tubes such as the 6BG6G and 6CD6G. The redesign mainly involved the omission of some of the internal RF shielding, and the substitution of a bakelite octal base for the micanol or ceramic 5-pin.