Construction Materials to Ensure the Electromagnetic Compatibility of Radio Equipment

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Abstract

Electromagnetic shielding is a widely used method for ensuring the electromagnetic compatibility (EMC) of radio equipment. The screening efficiency and operational reliability of the equipment are largely determined by the shield design, as well as the specifications and properties of the materials used for its manufacture. The article discusses the main construction materials used for electromagnetic shielding, such as the gaskets, contact springs, fabrics, heat shrink tubes, and RF absorbers with an adhesive layer. The method for confirming the specifications of shielding materials in the EMC laboratory of TESTPRIBOR JSC is described.

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About the authors

D. Grishin

TESTPRIBOR JSC

Author for correspondence.
Email: photonics@technosphera.ru

test engineer, EMC Laboratory

Russian Federation, Moscow

I. Gusev

TESTPRIBOR JSC

Email: photonics@technosphera.ru

test engineer, EMC Laboratory

Russian Federation, Moscow

References

  1. Pospisilik M., Drofova I., Kovar S., Dulik T., Tesacek A. Construction of a Generator for Power Frequency Magnetic Field Immunity Test. 2023. 33rd International Conference Radioelektronika (RADIOELEKTRONIKA). 19–20 April 2023. doi: 10.1109/RADIOELEKTRONIKA57919.2023.
  2. Pospisilik M. Introduction to Electromagnetic Compatibility for Electronic Engineers… and not only for them. – Zlin: Tomas Bata University in Zlin. 2019.
  3. IMO Resolution A.813(19) – General Requirements for Electromagnetic Compatibility (EMC) for all Electrical and Electronic Ships Equipment – (Adopted on 23 November 1995).
  4. Standard MIL-STD-285 Attenuation Measurements for Enclosures and Electromagnetic Shielding

Supplementary files

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2. Fig. 1. Contact springs

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3. Fig. 2. Wire mesh gasket

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4. Fig. 3. Braided wire tape

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5. Fig. 4. Shielding gaskets made of elastomer

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6. Fig. 5. Spiral tubes

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7. Fig. 6. Fabric conductive gaskets

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8. Fig. 7. Shielding foil

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9. Fig. 8. Shielded glass

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10. Fig. 9. Shielding heat shrink tubes

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11. Fig. 10. RF absorbers with an adhesive layer

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12. Fig. 11. Gain dependence on frequency for an amplifier with AGC

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13. Fig. 12. Measuring diagram for the coupling ratio between the antennas

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14. Fig. 13. Measuring diagram for the shielding ratio of material samples

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Copyright (c) 2023 Grishin D., Gusev I.