1、 IEC 61000-4-3 Edition 4.0 2020-09 INTERNATIONAL STANDARD Electromagnetic compatibility(EMC)Part 4-3:Testing and measurement techniques Radiated,radio-frequency electromagnetic field immunity test IEC 61000-4-3:2020-09(en)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2020 IEC,Geneva
2、,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from either IEC or IECs member National Committee in the count
3、ry of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.IEC Central Office Tel.:+41 22 919 02 11 3,rue de Varemb inf
4、oiec.ch CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content
5、of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigendum or an amendment might have been published.IEC publications search-webstore.iec.ch/advsearchform The advanced search enables to find IEC publications by a variety of criteria(r
6、eference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.Available online and once a month by
7、email.IEC Customer Service Centre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance,please contact the Customer Service Centre:salesiec.ch.Electropedia-www.electropedia.org The worlds leading online dictionary on electrotechnology,containing more
8、 than 22 000 terminological entries in English and French,with equivalent terms in 16 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC Glossary-std.iec.ch/glossary 67 000 electrotechnical terminology entries in English and French extracted from the Term
9、s and Definitions clause of IEC publications issued since 2002.Some entries have been collected from earlier publications of IEC TC 37,77,86 and CISPR.IEC 61000-4-3 Edition 4.0 2020-09 INTERNATIONAL STANDARD Electromagnetic compatibility(EMC)Part 4-3:Testing and measurement techniques Radiated,radio
10、-frequency electromagnetic field immunity test INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.100.20 ISBN 978-2-8322-8678-4 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinside 2 IEC 6
11、1000-4-3:2020 IEC 2020 CONTENTS FOREWORD.6 INTRODUCTION.8 1 Scope.9 2 Normative references.9 3 Terms,definitions and abbreviated terms.9 3.1 Terms and definitions.9 3.2 Abbreviated terms.13 4 General.14 5 Test levels and frequency ranges.14 5.1 Selection of test level.14 5.2 Test frequency ranges.16
12、 6 Test equipment.17 6.1 Test instrumentation.17 6.2 Description of the test facility.17 6.3 Uniform field area(UFA).18 6.3.1 Characteristics of the UFA.18 6.3.2 Constant field strength level setting method.23 6.3.3 Constant power level setting method.24 7 Test setup.25 7.1 General.25 7.2 Arrangemen
13、t of table-top equipment.26 7.3 Arrangement of floor-standing equipment.28 7.4 Arrangement of wiring.29 7.5 Arrangement of human body-mounted equipment.30 8 Test procedure.30 8.1 General.30 8.2 Laboratory reference conditions.30 8.2.1 General.30 8.2.2 Climatic conditions.30 8.2.3 Electromagnetic con
14、ditions.30 8.3 Execution of the test.30 8.4 Step sizes.32 9 Evaluation of test results.32 10 Test report.32 Annex A (informative)Rationale for the choice of modulation for tests related to the protection against RF emissions from digital radio services.34 A.1 Summary of available modulation methods.
15、34 A.2 Experimental results.35 A.3 Secondary modulation effects.38 A.4 Conclusion.38 Annex B(informative)Field generating antennas.39 B.1 Biconical antenna.39 B.2 Log-periodic antenna.39 B.3 Combination antennas.39 B.4 Horn antenna and double ridge wave guide antenna.39 IEC 61000-4-3:2020 IEC 2020 3
16、 Annex C(informative)Use of anechoic chambers.40 C.1 General anechoic chamber information.40 C.2 Use of ferrite-lined chambers at frequencies above 1 GHz.40 C.2.1 Problems caused by the use of ferrite-lined chambers for radiated field immunity tests at frequencies above 1 GHz.40 C.2.2 Solutions to reduce reflections.41 Annex D(informative)Amplifier compression and non-linearity.42 D.1 Objective of limiting amplifier distortion.42 D.2 Possible problems caused by harmonics and saturation.42 D.3 Li
