Electromagnetic compatibility (EMC) - Part 4-41: Testing and measurement techniques - Broadband radiated immunity tests

Elektromagnetische Verträglichkeit (EMV) - Teil 4-41: Prüf- und Messverfahren - Prüfungen der breitbandigen Störfestigkeit

Compatibilité électromagnétique (CEM) - Partie 4-41: Techniques d'essai et de mesure - Essais d'immunité aux rayonnements à large bande

Elektromagnetna združljivost (EMC) - 4-41. del: Preskusne in merilne tehnike - Preskusi odpornosti proti širokopasovnemu sevanju

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Not Published
Publication Date
31-Dec-2024
Current Stage
5060 - Voting results sent to TC, SR - Formal Approval
Start Date
27-Sep-2024
Completion Date
27-Sep-2024

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SLOVENSKI STANDARD
01-april-2024
Elektromagnetna združljivost (EMC) - 4-41. del: Preskusne in merilne tehnike -
Preskusi odpornosti proti širokopasovnemu sevanju
Electromagnetic compatibility (EMC) - Part 4-41: Testing and measurement techniques -
Broadband radiated immunity tests
Ta slovenski standard je istoveten z: prEN IEC 61000-4-41:2024
ICS:
33.100.20 Imunost Immunity
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

77B/884/CDV
COMMITTEE DRAFT FOR VOTE (CDV)

PROJECT NUMBER:
IEC 61000-4-41 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-02-09 2024-05-03
SUPERSEDES DOCUMENTS:
77B/870/CD, 77B/881/CC
IEC SC 77B : HIGH FREQUENCY PHENOMENA
SECRETARIAT: SECRETARY:
France Mr Franck GRUFFAZ
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

CIS/A,CIS/F,CIS/H,CIS/I
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
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This document is still under study and subject to change. It should not be used for reference purposes.
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Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Electromagnetic compatibility (EMC) - Part 4-41: Testing and measurement techniques -
Broadband radiated immunity tests

PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for
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IEC CDV 61000-4-41/Ed1 © IEC:2024 – 2 – 77B/884/CDV
1 CONTENTS
3 FOREWORD . 4
4 INTRODUCTION . 6
5 1 Scope . 7
6 2 Normative references . 7
7 3 Terms and definitions . 7
8 4 General . 8
9 5 Test levels and test signal . 9
10 5.1 Test levels . 9
11 5.2 Test signal . 10
12 5.3 Frequency range and test signal bandwidth . 13
13 5.4 Spectrum mask . 13
14 5.5 Frequency stepping . 15
15 5.6 Selection of level . 15
16 6 Test equipment and level adjustment procedure . 16
17 6.1 Test instrumentation . 16
18 6.2 Description of the test facility . 16
19 6.3 Uniform field area and validation of the spectrum shape . 16
20 6.3.1 General . 16
21 6.3.2 Validation of the spectrum shape . 17
22 7 Test setup . 17
23 8 Test procedure . 18
24 8.1 General . 18
25 8.2 Step size and test signal bandwidth . 18
26 8.3 Test signal and level setting . 18
27 9 Evaluation of the test results . 18
28 10 Test report . 18
29 Annex A (informative) Information on test signal generation . 20
30 A.1 General . 20
31 A.2 True random noise generation . 20
32 A.3 Pseudo noise sequence . 21
33 Annex B (informative)  Field generating antennas . 24
34 B.1 General . 24
35 Annex C (informative)  4G and 5G signals . 25
36 C.1 Overview of the radio interface technology of 4G and 5G . 25
37 C.1.1 Overview of the component RIT: E-UTRA/LTE . 25
38 C.1.2 Overview of the Component RIT: NR . 28
39 C.2 Simulation of the 5G Signal . 28
40 C.3 Application of a test model signal . 30
41 Annex D (informative)  Guide for selecting test levels . 33
42 D.1 General . 33
43 D.2 Test levels related to general purposes . 33
44 D.3 Test levels related to the protection against RF emissions from 4G/5G
45 communications . 34

IEC CDV 61000-4-41/Ed1 © IEC:2024 – 3 – 77B/884/CDV
46 D.4 Guide to derive test level from field distribution . 37
47 Annex E (informative)  Measurement uncertainty due to test instrumentation . 39
48 E.1 General . 39
49 Annex F (informative)  Test signal characterization . 40
50 F.1 General . 40
51 F.2 Test signal generation. 40
52 F.3 Definition of the crest factor . 40
53 F.4 Crest factor determination . 41
54 F.4.1 Mathematical determination for arbitrary waveform generator use . 41
55 F.4.2 The complementary cumulative distribution function (CCDF) . 41
56 F.5 Amplifier saturation . 42
57 F.6 Measurement methods . 43
58 F.6.1 General . 43
59 F.6.2 Spectrum analyser method . 43
60 F.6.3 Time domain measurement with a fast oscilloscope . 44
61 F.6.4 Power meter method. 45
62 F.7 Comparison of crest factor measurement results . 45
63 Bibliography . 47
65 Figure 1: Example of a 100 MHz wide test signal in frequency domain . 11
66 Figure 2: Example of the envelope of a 100 MHz wide test signal in time domain . 12
67 Figure 3: Pulse modulated test signal, Period time 10 ms, 50 % duty cycle . 12
68 Figure 4 Spectrum mask of the broadband test signal at the output of the power
69 amplifier. 14
71 Table 1 – Test levels. 10
72 Table 3 – Frequency ranges and test signal bandwidth . 13
73 Table 4 – Test signal requirements . 14
74 Table F.1 - Measurement of crest factors with different methods . 46
IEC CDV 61000-4-41/Ed1 © IEC:2024 – 4 – 77B/884/CDV
76 INTERNATIONAL ELECTROTECHNICAL COMMISSION
77 ____________
79 ELECTROMAGNETIC COMPATIBILITY (EMC)
81 Part 4-41: Testing and measurement techniques –
82 Broadband radiated immunity tests
86 FOREWORD
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