Passive RF and microwave devices, intermodulation level measurement - Part 3: Measurement of passive intermodulation in coaxial connectors

IEC 62037-3:2021 defines the impact test on coaxial connectors to evaluate their robustness against weak connections and particles inside the connector, as independently as possible from the effects of cable PIM (passive intermodulation). For other connectors (e.g. panel mounted connectors), the cable can be replaced by an adequate transmission-line (e.g. airline, stripline). In order to evaluate the effects of mechanical stresses on the connectors, a series of impacts is applied to the connectors while measuring the PIM. This second edition cancels and replaces the first edition published in 2012. This edition includes the following significant technical changes with respect to the previous edition:
a. impact method changed to utilize a steel ball rather than a brass rod;
b. impact energy required to test each connector type added;
c. method added to calculate impact energy for connector types not listed in the document.

Dispositifs RF et à micro-ondes passifs, mesure du niveau d'intermodulation - Partie 3: Mesure de l'intermodulation passive dans les connecteurs coaxiaux

L'IEC 62037-3:2021 définit l’essai de choc sur des connecteurs coaxiaux pour évaluer leur robustesse dans le cas de connexions faibles et de particules à l’intérieur des connecteurs, aussi indépendamment que possible des effets de l’intermodulation passive des câbles. Pour les autres connecteurs (par exemple les connecteurs montés sur panneaux), le câble peut être remplacé par une ligne de transmission adéquate (par exemple une ligne à air, une ligne à ruban). Afin d’évaluer les effets des contraintes mécaniques sur les connecteurs, une série de chocs est appliquée aux connecteurs, tout en mesurant l’intermodulation passive. Cette seconde édition annule et remplace la première édition parue en 2012. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a. modification de la méthode d’impact pour utiliser une bille en acier plutôt qu’une tige en laiton;
b. ajout de l’énergie de choc exigée pour soumettre à l’essai chaque type de connecteur;
c. ajout de la méthode pour calculer l’énergie de choc pour les types de connecteurs non répertoriés dans le document.

General Information

Status
Published
Publication Date
18-Nov-2021
Current Stage
PPUB - Publication issued
Start Date
10-Dec-2021
Completion Date
19-Nov-2021
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IEC 62037-3 ®
Edition 2.0 2021-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Passive RF and microwave devices, intermodulation level measurement –
Part 3: Measurement of passive intermodulation in coaxial connectors

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
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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.

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IEC 62037-3 ®
Edition 2.0 2021-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Passive RF and microwave devices, intermodulation level measurement –
Part 3: Measurement of passive intermodulation in coaxial connectors
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.040.20 ISBN 978-2-8322-5111-9

– 2 – IEC 62037-3:2021 RLV © IEC 2021
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 – Fixed frequency test considerations . 6
4.4 Set-up 2 considerations . 6
4.5 Impacts . 6
5 Report . 7
Annex A (normative) Calculating equivalent impact energy . 10
Annex B (normative) Calculating impact energy for different connector types . 11
Figure 1 – Impact test illustration . 8
Figure 2 – Impact device .
Table 1 – Impact information for some popular connectors. 7
Table A.1 – Estimated mass of various diameter steel balls . 10
Table B.1 – Impact energy calculation for RF connector type . 11

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

Part 3: Measurement of passive intermodulation in coaxial connectors

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 62037-3:2012. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 62037-3:2021 RLV © IEC 2021
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 second edition cancels and replaces the first edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) impact method changed to utilize a steel ball rather than a brass rod;
b) impact energy required to test each connector type added;
c) method added to calculate impact energy for connector types not listed in the document.
The text of this International Standard is based on the following documents:
Draft Report on voting
46/836/FDIS 46/857/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/standardsdev/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,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

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
against weak connections and particles inside the connector, as independently as possible from
the effects of cable PIM (passive intermodulation).
For other connectors (e.g. panel mounted connectors), the cable can be replaced by an adequate
transmission-line (e.g. airline, stripline). In order to evaluate the effects of mechanical stresses
on the connectors, a series of impacts is applied to the connectors while measuring the PIM.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62037-1, Passive RF and microwave devices, intermodulation level measurement – Part 1:
General requirements and measuring methods
IEC 62037-4, Passive RF. and microwave devices, intermodulation level measurement – Part 4:
Measurement of passive intermodulation in coaxial cables
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.2 Abbreviated terms
DUT Device under test
IM Intermodulation
PIM Passive intermodulation
To be published.
To be published.
– 6 – IEC 62037-3:2021 RLV © IEC 2021
4 Test method
4.1 Samples for testing
One of the two following set-ups may be used.
NOTE Correct assembly methods and techniques are critical to the proper operation of the connector on the cable.
a) Set-up 1 – Multi-port DUT
In order to minimize the effect of the transmission line, a short assembly should be tested.
Identical connectors should be assembled at each end. An assembly, as short as physically
practical, should be constructed.
a) Set-up 2 – One-port DUT
A single connector can be assembled on a length of transmission line for which it is
designed, loss or low loss, that exhibits at least 10 dB of attenuation in one direction at the
lowest frequency in the receive band.
4.2 Connection of unit
The unit should shall be connected as described in IEC 62307-1.
4.3 Set-up 1 – Fixed frequency test considerations
Due to the phase interaction of the connectors and the length of the transmission line
(configuration A) when measured in the reverse (reflected) mode, the frequency at which
maximum PIM occurs within the band can vary and shall be determined.
An accepted method of sweeping is to fix F1 f at the low end of the transmit ban
...


IEC 62037-3 ®
Edition 2.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
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CH-1211 Geneva 20 www.iec.ch
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 IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 18 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
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If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
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IEC 62037-3 ®
Edition 2.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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 978-2-8322-1049-1

– 2 – IEC 62037-3:2021 © IEC 2021
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 – Fixed frequency test considerations . 6
4.4 Set-up 2 considerations . 6
4.5 Impacts . 6
5 Report . 7
Annex A (normative) Calculating equivalent impact energy . 8
Annex B (normative) Calculating impact energy for different connector types . 9

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 . 8
Table B.1 – Impact energy calculation for RF connector type . 9

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

Part 3: Measurement of passive intermodulation in coaxial connectors

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
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 second edition cancels and replaces the first edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) impact method changed to utilize a steel ball rather than a brass rod;
b) impact energy required to test each connector type added;
c) method added to calculate impact energy for connector types not listed in the document.

– 4 – IEC 62037-3:2021 © IEC 2021
The text of this International Standard is based on the following documents:
Draft Report on voting
46/836/FDIS 46/857/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/standardsdev/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,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

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
against weak connections and particles inside the connector, as independently as possible from
the effects of cable PIM (passive intermodulation).
For other connectors (e.g. panel mounted connectors), the cable can be replaced by an adequate
transmission-line (e.g. airline, stripl
...

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