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IEEE 1128
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IEEE 1128 1998 Edition, 1998 Recommended Practice for Radio-Frequency (RF) Absorber Evaluation in the Range of 30 MHz to 5 GHz
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Description / Abstract:
The purpose of this recommended practice is to recommend
realistic and repeatable criteria, as well as recommended test
methods, to characterize the absorption properties of typical
anechoic chamber linings applied to a metallic surface. This
recommended practice covers the parameters and test procedures for
the evaluation of radio-frequency (RF) absorbers to be used for
radiated emissions and radiated susceptibility testing of
electronic products, in the absorber manufacturer and/or absorber
user environment, over the frequency range of 30 MHz to 5 GHz.
The recommended methods approach the RF absorber evaluation at three levels:
a) RF absorber materials bulk parameters
b) Arrays of commercially available RF absorbers
c) RF absorbers in actual applications, as in anechoic or semianechoic chambers and lined open-area test sites.
The evaluation measurements can be performed in frequency and/or time domain. This recommended pratice, however, does not address the accuracy and limitations of the different evaluation methods. These issues will be addressed in future revisions of this recommended pratice.
The recommended methods approach the RF absorber evaluation at three levels:
a) RF absorber materials bulk parameters
b) Arrays of commercially available RF absorbers
c) RF absorbers in actual applications, as in anechoic or semianechoic chambers and lined open-area test sites.
The evaluation measurements can be performed in frequency and/or time domain. This recommended pratice, however, does not address the accuracy and limitations of the different evaluation methods. These issues will be addressed in future revisions of this recommended pratice.