IEEE 299-2006
Withdrawn
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IEEE Standard Method for Measuring the Effectiveness of Electromagnetic Shielding Enclosures
03-30-2023
English
02-28-2007
1 Overview
1.1 Scope
1.2 Purpose
1.3 Application
2 Normative references
3 Definitions
3.1 General terminology
3.2 Technical terminology
4 Preliminary procedures
4.1 Background
4.2 Test plan
4.3 Calibration
4.4 Reference level and dynamic range
4.5 Preliminary shield check procedures
4.6 Test/witness personnel
5 Detailed procedures
5.1 Background
5.2 Recommended standard measurement frequencies
5.3 Pass/fail requirements
5.4 Shielding effectiveness calculation
5.5 Preparation procedures
5.6 Low-frequency measurements (9 kHz to 20 MHz)
5.7 Resonant range measurements (20 MHz to 300 MHz)
5.8 High-frequency measurements (300 MHz to 18 GHz)
6 Quality assurance technical report
6.1 Abbreviated test report
6.2 Full test report
Annex A (informative) Rationale
A.1 Basis
A.2 Considerations pertinent to the objectives of 1.2
A.3 Cavity resonances
A.4 Measurement locations
A.5 Measurement equipment
Annex B (informative) Mathematical formulas
B.1 Specific mathematical formulations
B.2 Low-range (50 Hz to 20 MHz) shielding effectiveness
B.3 Resonant range (20 MHz to 300 MHz) shielding effectiveness
B.4 High-range (300 MHz to 100 GHz) shielding effectiveness
B.5 Nonlinear (logarithmic) calculations
B.6 Dynamic range considerations
Annex C (informative) Miscellaneous supporting information
C.1 Coplanar versus coaxial loops
C.2 Nonlinearity of high-permeability ferromagnetic enclosures
C.3 Selecting measurement frequencies
Annex D (informative) Guidelines for the selection of measurement
techniques
D.1 Types of enclosures
D.2 Performance requirements
D.3 Equipment requirements
D.4 Regulatory agency conflicts
Annex E (informative) Preliminary measurements and repairs
E.1 Background
E.2 Frequencies for preliminary check
E.3 Preliminary check procedures
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