1、 IEC 62037-5 Edition 1.0 2013-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Passive RF and microwave devices, intermodulation level measurement Part 5: Measurement of passive intermodulation in filters Dispositifs RF et micro-ondes passifs, mesure du niveau dintermodulation Partie 5: Mesure de lint
2、ermodulation passive dans les filtres IEC 62037-5:2013-01(EN-FR) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland 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 mecha
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20、ermodulation level measurement Part 5: Measurement of passive intermodulation in filters Dispositifs RF et micro-ondes passifs, mesure du niveau dintermodulation Partie 5: Mesure de lintermodulation passive dans les filtres INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERN
21、ATIONALE M ICS 33.040.20 PRICE CODE CODE PRIX ISBN 978-2-8322-1346-9 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Ve
22、uillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 62037-5 IEC:2013 CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative references . 5 3 Abbreviations . 5 4 General comments on PIM testing of filter assemblies 5 4.1 Sources of error: back-to-back filters . 5 4.2 Environm
23、ental and dynamic PIM testing 6 4.3 General test procedure 7 5 Example test equipment schematics for filter testing . 7 5.1 General . 7 5.2 Transmit band testing 7 5.3 Receive band testing: dual high-power carriers . 8 5.4 Receive band testing: injected interferer 10 Figure 1 Typical receive band PI
24、M test set-up 6 Figure 2 Typical test equipment schematic for measuring transmit-band, forward, passive IM products on an N-port DUT using two high-power carriers . 8 Figure 3 Typical test equipment schematic for measuring receive-band, forward, passive IM products on an N-port DUT, using two high-p
25、ower carriers 9 Figure 4 Typical test equipment schematic for measuring receive-band, reverse, passive IM products on an N-port DUT, using two high-power carriers 9 Figure 5 Typical test equipment schematic for measuring receive-band, passive IM products on an N-port DUT, using two high-power carrie
26、rs . 10 Figure 6 Typical test equipment schematic for measuring receive-band, forward, passive IM products on an N-port DUT, using the injected interferer technique . 11 Figure 7 Typical test equipment schematic for measuring receive-band, reverse, passive IM products on an N-port DUT, using the inj
27、ected interferer technique . 11 Figure 8 Typical test equipment schematic for measuring receive-band, passive IM products on an N-port DUT, using the injected interferer technique . 12 Table 1 Summary table referencing example test equipment schematics for measuring PIM on filter-type devices 7 6203
28、7-5 IEC:2013 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PASSIVE RF AND MICROWAVE DEVICES, INTERMODULATION LEVEL MEASUREMENT Part 5: Measurement of passive intermodulation in filters FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization com
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38、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 r
39、esponsible for identifying any or all such patent rights. International Standard IEC 62037-5 has been prepared by technical committee 46: Cables, wires, waveguides, r.f. connectors, r.f. and microwave passive components and accessories. This bilingual version (2014-01) corresponds to the monolingual
40、 English version, published in 2013-01.The text of this standard is based on the following documents: FDIS Report on voting 46/409/FDIS 46/421/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. The French version of
41、 this standard has not been voted upon.This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 4 62037-5 IEC:2013 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
42、 found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated 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, wi
43、thdrawn, replaced by a revised edition, or amended. 62037-5 IEC:2013 5 PASSIVE RF AND MICROWAVE DEVICES, INTERMODULATION LEVEL MEASUREMENT Part 5: Measurement of passive intermodulation in filters 1 Scope This part of IEC 62037 defines test fixtures and procedures recommended for measuring levels of
44、 passive intermodulation generated by filters, typically used in wireless communication systems. The purpose is to define qualification and acceptance test methods for filters for use in low intermodulation (low IM) applications. 2 Normative references The following documents, in whole or in part, a
45、re 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) applies. IEC 62037-1:2012, Passive r.f. and microwave devices,
46、intermodulation level measurement Part 1: General requirements and measuring methods 3 Abbreviations DUT Device under test IM Intermodulation PIM Passive intermodulation 4 General comments on PIM testing of filter assemblies 4.1 Sources of error: back-to-back filters Testing filter assemblies for PI
47、M may be error prone if certain precautionary guidelines are not followed. Since PIM can be a frequency-dependent phenomena, mathematically related to the harmonics of the input signals and combinations thereof, consideration should be given not only to the behaviour of the test set-up under fundame
48、ntal stimulation, but also its harmonic performance. In particular, consider a receive-band PIM test set-up as shown in Figure 1. As shown, this set-up could be used to measure the PIM in a two-port device under test (DUT); however, the accuracy of the measurement could be in question due to the bac
49、k- to-back filters (diplexers) used. 6 62037-5 IEC:2013 Figure 1 Typical receive band PIM test set-up While the diplexers certainly appear as a matched load around the fundamental frequencies and receive-band IM products, they may be very poorly matched at harmonics of the fundamentals. A poor match will set up a standing wave at the harmonic frequencies which may re-illuminate any PIM sources within the DUT with h
