IEC 62037-3:2025

IEC 62037-3 ®
Edition 3.0 2025-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Passive RF and microwave devices, intermodulation level measurement –
Part 3: Measurement of passive intermodulation in coaxial connectors

Dispositifs RF et à micro-ondes passifs, mesure du niveau d'intermodulation –
Partie 3: Mesure de l'intermodulation passive dans les connecteurs coaxiaux
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IEC 62037-3 ®
Edition 3.0 2025-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Passive RF and microwave devices, intermodulation level measurement –

Part 3: Measurement of passive intermodulation in coaxial connectors

Dispositifs RF et à micro-ondes passifs, mesure du niveau d'intermodulation –

Partie 3: Mesure de l'intermodulation passive dans les connecteurs coaxiaux

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.040.20  ISBN 978-2-8327-0312-0

– 2 – IEC 62037-3:2025 © IEC 2025
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms . 5
4 Test method . 6
4.1 Samples for testing . 6
4.2 Connection of unit . 6
4.3 Set-up 1 – reverse (reflected) mode test considerations . 6
4.4 Set-up 2 – forward (transmitted) mode test considerations . 6
4.5 Impacts . 7
5 Report . 8
Annex A (normative) Calculating equivalent impact energy . 9
Annex B (normative) Calculating impact energy for different connector types . 10

Figure 1 – Impact test illustration . 7

Table 1 – Impact information for some popular connectors. 7
Table A.1 – Estimated mass of various diameter steel balls . 9
Table B.1 – Impact energy calculation for RF connector type . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PASSIVE RF AND MICROWAVE DEVICES,
INTERMODULATION LEVEL MEASUREMENT –

Part 3: Measurement of passive intermodulation in coaxial connectors

FOREWORD
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IEC 62037-3 has been prepared by IEC technical committee 46: Cables, wires, waveguides, RF
connectors, RF and microwave passive components and accessories. It is an International
Standard.
This third edition cancels and replaces the second edition published in 2021. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) impact test requirements for multi-channel connectors added;
b) method for calculating impact energy added for connector shapes other than round;

– 4 – IEC 62037-3:2025 © IEC 2025
c) revised test considerations for achieving maximum PIM in reverse (reflected) PIM
measurements;
d) added clarification that PIM tests reports shall include the maximum PIM value measured.
The text of this International Standard is based on the following documents:
Draft Report on voting
46/1040/FDIS 46/1044/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all the parts in the IEC 62037 series, published under the general title Passive RF and
microwave devices, intermodulation level measurement can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
PASSIVE RF AND MICROWAVE DEVICES,
INTERMODULATION LEVEL MEASUREMENT –

Part 3: Measurement of passive intermodulation in coaxial connectors

1 Scope
This part of IEC 62037 defines the impact test on coaxial connectors to evaluate their robustness
...