IEEE Std 1128-1998 IEEE Recommended Practice for Radio-Frequency (RF) Absorber Evaluation in the Range of 30 MHz to 5 GHz.pdf
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1、The Institute of Electrical and Electronics Engineers, Inc. 345 East 47th Street, New York, NY 10017-2394, USA Copyright 1998 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 1998. Printed in the United States of America. ISBN 1-55937-986-3 No part of thi
2、s publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. IEEE Std 1128-1998 IEEE Recommended Practice for Radio-Frequency (RF) Absorber Evaluation in the Range of 30 MHz to 5 GHz Sponsor Standards Committee of
3、 the IEEE Electromagnetic Compatibility Society Approved 13 January 1998 IEEE Standards Board Abstract: Realistic and repeatable criteria, as well as recommended test methods, for characteriz- ing the absorption properties of typical anechoic chamber linings applied to a metallic surface are describ
4、ed. Parameters and test procedures are described for the evaluation of RF absorbers to be used for radiated emissions and radiated susceptibility testing of electronic products, in the ab- sorber manufacturer and/or absorber user environment, over the frequency range of 30 MHz to 5 GHz. Keywords: an
5、echoic chamber, radiated emissions, RF absorber, semianechoic chamber Authorized licensed use limited to: Peking University. Downloaded on December 26,2010 at 15:35:39 UTC from IEEE Xplore. Restrictions apply. IEEE Standards documents are developed within the IEEE Societies and the Standards Coordi-
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16、ed to the possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for i
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18、Xplore. Restrictions apply. Copyright 1998 IEEE. All rights reserved.iii Introduction This introduction is not part of IEEE Std 1128-1998, IEEE Recommended Practice for Radio-Frequency (RF) Absorber Evaluation in the Range of 30 MHz to 5 GHz. Interest in materials that absorb radio-frequency energy
19、has existed for many years. The recent increased regulation of sources of radio waves and equipment immunity levels has led to the need for a more accurate determination of electromagnetic field intensity. As modern measuring antennas and receivers have increased measurement accuracy, the problem of
20、 making accurate measurements in less than optimum open- area test sites has become a more important part of the overall measurement procedures. The practice of placing absorbing materials on the walls and ceilings of measuring sites to reduce reflections from these sur- faces has become common. Cla
21、ims for the efficacy of various absorbing materials, however, have led to conflicting reports in the literature, which confuse many potential purchasers of absorbing material. An effort to end that confusion led to the development of a draft recommended practice in 1986. Following sev- eral years of
22、 work, the current recommended practice was developed. At the time this recommended practice was completed, the working group had the following membership: Jose Perini, Chair Anatoly Tsailovich, Vice ChairFerdy Mayer, Secretary The following individuals have contributed reviews and comments and have
23、 attended meetings: The following persons were on the balloting committee: Paul Anderson Edwin L. Bronaugh Frederic J. Broyde Donald E. Clark Larry S. Cohen William E. Cory Heinrich Garn David Giangiulli Franz Gisin Diethard Hansen H. R. Hofmann Motohisa Kanda Keneth K. Kimura James C. Klouda Brian
24、F. Lawrence Ming-Chiang Li Kefeng Liu L. Van De Looverbosch Atsuya Maeda Luc Martens William H. McGinnis Walter D. McKerchar Fernando Mendoza John D. Osburn Barry Pate Ghery S. Petit Hugo Pues Scott Roleson Gabriel A. Sanchez Verner Schaefer James R. Stidman Randy Anderson J. P. Chaumat Tim DArcange
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