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Full Description

Scope

This standard provides uniform measurement procedures for determining the effectiveness of electromagnetic (EM) shielding enclosures at frequencies from 9 kHz to 18 GHz (extendable down to 50 Hz and up to 100 GHz). The owner of the shielding enclosure shall provide the frequencies at which the shield will be tested, and the shielding effectiveness (SE) limits for pass/fail. This standard suggests a range of test frequencies that would provide very high confidence in the effectiveness of the shield. This standard dose not define SE limits for pass or fail.

Purpose

The purpose of this standard is to provide the following: a) A standard procedure for the measurement of the effectiveness of shielded enclosures, in a broad range of radio frequencies (RFs), including a minimum set of recommended frequencies b) Identical procedures applicable to frequencies other than the standard set c) An optional measurement technique to detect the nonlinear behavior of high-permeability ferromagnetic enclosures (see Annex C)

Abstract

Revision Standard - Active. Uniform measurement procedures and techniques are provided for determining the effectiveness of electromagnetic shielding enclosures at frequencies from 9 kHz to 18 GHz (extendable to 50 Hz and 100 GHz, respectively) for enclosures having all dimension greater than or equal to 2.0 m. The types of enclosures covered include, but are not limited to, single-shield or double-shield structures of various construction, such as bolted demountable, welded, or integral with a building; and made of materials such as steel plate, copper or aluminum sheet, screening, hardware cloth, metal foil, or shielding fabrics.
 

Document History

  1. IEEE 299-2006

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    IEEE Standard Method for Measuring the Effectiveness of Electromagnetic Shielding Enclosures

    • Most Recent
  2. IEEE 299-1997


    IEEE Standard Method for Measuring the Effectiveness of Electromagnetic Shielding Enclosures

    • Historical Version
  3. IEEE 299-1991


    IEEE Standard for Measuring the Effectiveness of Electromagnetic Shielding Enclosures

    • Historical Version
  4. IEEE 299-1969


    IEEE Recommended Practice for Measurement of Shielding Effectiveness of High-Performance Shielding Enclosures

    • Historical Version