IEC 61169-1-4:2020

IEC 61169-1-4 ®
Edition 1.0 2020-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio-frequency connectors –
Part 1-4: Electrical test methods – Voltage standing wave ratio, return loss and
reflection coefficient
Connecteurs pour fréquences radioélectriques –
Partie -4: Méthodes d’essai électriques – Rapport d’ondes stationnaires
en tension, affaiblissement de réflexion et coefficient de réflexion

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IEC 61169-1-4 ®
Edition 1.0 2020-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio-frequency connectors –
Part 1-4: Electrical test methods – Voltage standing wave ratio, return loss and

reflection coefficient
Connecteurs pour fréquences radioélectriques –

Partie -4: Méthodes d’essai électriques – Rapport d’ondes stationnaires

en tension, affaiblissement de réflexion et coefficient de réflexion

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.120.30 ISBN 978-2-8322-8428-5

– 2 – IEC 61169-1-4:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Preparation of test sample (DUT) . 6
4.1 Cable RF connector .6
4.2 Microstrip connector .7
4.3 Adapter .7
5 Typical graphical symbols . 7
6 Test condition . 8
7 Test methods . 8
7.1 Frequency-domain method .8
7.1.1 Test theory .8
7.1.2 Test equipment .9
7.1.3 Test procedure .9
7.2 Time-domain method . 10
7.2.1 Test theory . 10
7.2.2 Equipment . 11
7.2.3 Test procedure . 11
7.3 Gating . 12
7.3.1 Test principle . 12
7.3.2 Equipment . 12
7.3.3 Test procedure . 12
8 Failure criterion . 13
9 Information to be given in the relevant specification . 13
10 Test report . 13

Figure 1 – Dual-connector assembly test sample (DUT) . 7
Figure 2 – Illustration of signal transmission and reflection in DUT . 8
Figure 3 – S-parameter representing transmission and reflection characteristics . 8
Figure 4 – System calibration outline . 9
Figure 5 – Outline of system calibration and verification when standard test adapter is
used . 9
Figure 6 – DUT test outline . 10
Figure 7 – Standard test adaptor calibration and verification outline. 10
Figure 8 – DUT test arrangement example . 10
Figure 9 – Principle of time-domain measurement . 11
Figure 10 – The position of DUT in the system . 12

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIO-FREQUENCY CONNECTORS –
Part 1-4: Electrical test methods – Voltage standing wave ratio,
return loss and reflection coefficient

FOREWORD
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International Standard IEC 61169-1-4 has been prepared by subcommittee 46F: RF and
microwave passive components, of IEC technical committee 46: Cables, wires, waveguides,
RF connectors, RF and microwave passive components and accessories.
The text of this International Standard is based on the following documents:
FDIS Report on voting
46F/505/FDIS 46F/510/RVD
Full information on the voting for
...