FprEN IEC 61000-4-41:2024

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

PROPOSED STABILITY DATE: 2026
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download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
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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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