1、 IEC 62037-2 Edition 1.0 2012-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Passive RF and microwave devices, intermodulation level measurement Part 2: Measurement of passive intermodulation in coaxial cable assemblies Dispositifs RF et micro-ondes passifs, mesure du niveau dintermodulation Partie
2、2: Mesure de lintermodulation passive dans les cordons coaxiaux IEC 62037-2:2012-11(EN-FR) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any f
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20、LE Passive RF and microwave devices, intermodulation level measurement Part 2: Measurement of passive intermodulation in coaxial cable assemblies Dispositifs RF et micro-ondes passifs, mesure du niveau dintermodulation Partie 2: Mesure de lintermodulation passive dans les cordons coaxiaux INTERNATIO
21、NAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE G ICS 33.040.20, 33.120.10 PRICE CODE CODE PRIX ISBN 978-2-8322-1349-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure tha
22、t you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 62037-2 IEC:2012 CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative references 5 3 Abbreviations 5 4 Test set-up . 5 5 Procedure
23、 . 7 6 Report 7 Figure 1 PIM test set-up example . 6 Figure 2 Rotation of cable 6 Table 1 Minimum requirement of cable parameters . 7 62037-2 IEC:2012 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PASSIVE RF AND MICROWAVE DEVICES, INTERMODULATION LEVEL MEASUREMENT Part 2: Measurement of passive inte
24、rmodulation in coaxial cable assemblies 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 que
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32、ach 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 fee
33、s) 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 publicati
34、on. 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. International Standard IEC 62037-2 has been prepared by technical committee 46: Cables,
35、 wires, waveguides, r.f. connectors, r.f. and microwave passive components and accessories. This bilingual version (2014-01) corresponds to the monolingual English version, published in 2012-11.The text of this standard is based on the following documents: FDIS Report on voting 46/408/FDIS 46/420/RV
36、D The French version of this standard has not been voted upon. Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 4 62037-2 IEC:2012 A
37、 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 publication will remain unchanged until the stability date indica
38、ted on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it con
39、tains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 62037-2 IEC:2012 5 PASSIVE RF AND MICROWAVE DEVICES, INTERMODULATION LEVEL MEASUREMENT Part 2: Measurement of passive intermodulation in c
40、oaxial cable assemblies 1 Scope This part of IEC 62037 defines a procedure to measure levels of passive intermodulation generated by a coaxial cable assembly. This test method is applicable to jumper cables, i.e. cable assemblies intended to provide interface flexibility between rigid devices. 2 Nor
41、mative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments
42、) applies. IEC 62037-1:2012, Passive RF and microwave devices, intermodulation level measurement Part 1: General requirements and measuring methods 3 Abbreviations DUT Device under test PIM Passive intermodulation 4 Test set-up Set-up 1 and set-up 2 are applicable in this PIM-test. Either set-up 1 (
43、reverse method, see 6.2.2 of IEC 62037-1:2012), or set-up 2 (forward method, see 6.2.3 of IEC 62037-1:2012), may be used for cable assemblies, provided that the attenuation of the assembly is not greater than 1 dB. For higher attenuation, the reverse method shall be used. The connector under test sh
44、ould be clamped and mechanically secured to prevent its movement during the test. A describable and repeatable mechanical stress is applied to the DUT. This mechanical stress is defined by a distance d, between the end of the cable-entry (the last rigid mechanical point of the connector) and the poi
45、nt of the deflection, and circular movement around the cable axis with a radius r. This test shall be performed on each end independently. An example of a test set-up is shown in Figure 1. The cable movement is depicted in Figure 2. The rotational radius (r) and distance (d) is defined in Table 1. T
46、he cable attachment to the termination should be supported. 6 62037-2 IEC:2012 1 2 3 4 1 2 3 4 d r IEC 2121/12 Key 1 PIM test set-up 3 termination 2 moving unit 4 DUT The distance, d and the radius, r are related to the nominal outside diameter, of the cable. Figure 1 PIM test set-up example 1 2 3 I
47、EC 2122/12 Key 1 cable DUT 2 circular movement of cable 3 radius of deflection, r Figure 2 Rotation of cable 62037-2 IEC:2012 7 Table 1 Minimum requirement of cable parameters Cable d (see Figure 1) r (radius) Braided and foil wrapped cables 6 cable +10 mm Foam dielectric/helical and annular corruga
48、tion / 16 mm * +10 mm Air dielectric/helical corrugation 12 cable +10 mm Other cable constructions * * * to be defined between customer and supplier, or as specified by the manufacturer. Other values may be used as specified by the customer and supplier or by the manufacturer. The movement of the ca
49、ble shall be carried out with a minimum of 3 cycles and a rate of (5 2) s per revolution. Torsion shall not be applied to the cable. It is recommended to rotate the cable clockwise. 5 Procedure The procedure is as follows: a) calibrate the set-up; b) connect the DUT to the set-up; c) read the PIM before applying mechanical stress; d) apply mechanical stress to the DUT according to Table 1; e)
