|
IEC 61000-4-3
Edition 4.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Electromagnetic compatibility (EMC) –
Part 4-3: Testing and measurement techniques – Radiated, radio-frequency
electromagnetic field immunity test
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
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 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 Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and once 67 000 electrotechnical terminology entries in English and
a month by email. French extracted from the Terms and Definitions clause of IEC
publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or need CISPR.
further assistance, please contact the Customer Service
.
IEC 61000-4-3
Edition 4.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Electromagnetic compatibility (EMC) –
Part 4-3: Testing and measurement techniques – Radiated, radio-frequency
electromagnetic field immunity test
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.20 ISBN 978-2-8322-8678-4
– 2 – IEC 61000-4-3:2020 © 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
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 Arrangement 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 conditions . 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 . 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
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 Limiting the harmonic content in the field . 42
D.4 Effect of linearity characteristic on the immunity test . 43
D.4.1 General . 43
D.4.2 Evaluation method of the linearity characteristic . 43
Annex E (informative) Guidance for product committees on the selection of test levels . 47
E.1 General . 47
E.2 Test levels related to general purposes . 47
E.3 Test levels related to the protection against RF emissions from digital radio
telephones . 48
E.4 Special measures for fixed transmitters. 49
Annex F (informative) Selection of test methods . 50
Annex G (informative) Cable layout details . 52
G.1 Intentions of EUT setup for radiated immunity test . 52
G.2 Cable in the field . 52
G.3 Cables leaving the test area . 52
G.4 Turning the EUT cabinets . 52
Annex H (informative) Examples of test setups for large and heavy EUTs . 54
H.1 EUTs with bottom fed cables . 54
H.2 EUTs with overhead cables . 55
H.3 EUTs with multiple cables and AEs . 56
H.4 Large EUTs with side fed cables and multiple UFA windows . 57
Annex I (informative) Testing with multiple signals . 58
I.1 General . 58
I.2 Intermodulation . 58
I.3 Power requirements . 59
I.4 Level setting requirements . 60
I.5 Linearity and harmonics checks . 60
I.6 EUT performance criteria with multiple signals . 60
Annex J (informative) Measurement uncertainty due to test instrumentation . 61
J.1 General . 61
J.2 Uncertainty budgets for level setting . 61
J.2.1 Definition of the measurand . 61
J.2.2 MU contributors of the measurand . 61
J.2.3 Calculation examples for expanded uncertainty . 62
J.2.4 Explanation of terms . 63
J.3 Application . 64
J.4 Reference documents . 64
Annex K (informative) Calibration method for E-field probes . 65
K.1 Overview. 65
– 4 – IEC 61000-4-3:2020 © IEC 2020
K.2 Probe calibration requirements . 65
K.2.1 General . 65
K.2.2 Calibration frequency range .
...