IEC 62604-2:2022
(Main)Surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers of assessed quality - Part 2: Guidelines for the use
Surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers of assessed quality - Part 2: Guidelines for the use
IEC 62604-2:2022 applies to duplexers which can separate receiving signals from transmitting signals and are key components for two-way radio communications, and which are generally used in mobile phone systems compliant with CDMA systems such as N-CDMA in second generation mobile telecommunication systems (2G), W-CDMA / UMTS (3G) or LTE (4G). These guidelines draw attention to some fundamental questions about the theory of SAW and BAW duplexers and how to use them, which will be considered by the user before he places an order for SAW and BAW duplexers for a new application. Such a procedure will be the user’s insurance against unsatisfactory performance. Because SAW and BAW duplexers have very similar performance for the usage, it is useful and convenient for users that both duplexers are described in one standard. This edition includes the following significant technical changes with respect to the previous edition:
- the term "cross-isolation" has been added to Clause 3;
- multiplexers are described.
NOTE In this document, SAW and BAW duplexers are treated simultaneously because both duplexers are used in the same manner, especially in mobile phone systems and have the same requirements of characteristics, test method and so on.
Duplexeurs à ondes acoustiques de surface (OAS) et à ondes acoustiques de volume (OAV) sous assurance de la qualité - Partie 2 : Lignes directrices d’utilisation
L’IEC 62604-2:2022 s’applique aux duplexeurs qui peuvent séparer les signaux en réception des signaux en émission et constituent des composants essentiels pour les radiocommunications bilatérales. Ils sont généralement utilisés dans les systèmes de téléphonie mobile conformes aux systèmes d’accès multiple par répartition en code (AMRC) comme les systèmes N-CDMA des systèmes de télécommunication mobile de seconde génération (2G), les systèmes W-CDMA/UMTS (3G) ou les systèmes LTE (4G). Les présentes lignes directrices attirent l’attention sur certaines des questions fondamentales concernant la théorie des duplexeurs à OAS et à OAV, et leurs modalités d’utilisation, qui sont à prendre en considération par l’utilisateur avant de commander un duplexeur à OAS ou à OAV pour une nouvelle application. Ainsi, l’utilisateur évite d’être confronté à des performances non satisfaisantes. Dans la mesure où les duplexeurs à OAS et à OAV présentent des performances très similaires dans leur utilisation, il est utile et pratique pour les utilisateurs que les deux types soient décrits dans une seule norme. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
- ajout du terme "isolation de polarisation croisée" à l’Article 3;
- description des multiplexeurs.
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IEC 62604-2 ®
Edition 3.0 2022-09
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers of
assessed quality –
Part 2: Guidelines for the use
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
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International Standards for all electrical, electronic and related technologies.
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IEC 62604-2 ®
Edition 3.0 2022-09
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers of
assessed quality –
Part 2: Guidelines for the use
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.140 ISBN 978-2-8322-5653-4
– 2 – IEC 62604-2:2022 RLV © IEC 2022
CONTENTS
FOREWORD . 4
INTRODUCTION . 2
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
3.1 Response characteristics related terms . 8
3.2 SAW and BAW duplexers related terms . 8
4 Technical considerations . 8
5 Fundamentals of SAW and BAW duplexers. 9
5.1 Basic function . 9
5.1.1 General . 9
5.1.2 TX filter response (filter response from TX port to antenna port) . 10
5.1.3 RX filter response (filter response from antenna port to RX port) . 10
5.1.4 Isolation (isolation from TX port to RX port) . 10
5.2 Basic structure . 11
5.3 Principle of operation . 12
5.4 Diplexer . 17
5.5 Multiplexer . 18
6 SAW and BAW duplexer characteristics . 18
6.1 General conditions for SAW and BAW duplexers . 18
6.2 Typical characteristics of SAW and BAW duplexers . 21
6.2.1 UMTS duplexer . 21
6.2.2 US CDMA duplexer . 21
6.2.3 PCS CDMA duplexer . 22
6.2.4 LTE Band 1 + Band 3 multiplexer. 22
7 Application guidelines . 22
7.1 Power durability . 26
7.2 Harmonics and inter-modulation distortion . 27
7.3 Measurement method for the duplexer . 27
7.4 Electrostatic voltage protection . 29
Bibliography . 30
Figure 1 – Basic duplexer configuration . 9
Figure 2 – Basic TX filter response example of SAW and BAW duplexers . 11
Figure 3 – Basic RX filter response example of SAW and BAW duplexers . 11
Figure 4 – Basic isolation characteristics example of SAW and BAW duplexers . 11
Figure 5 – The block diagram of a duplexer . 13
Figure 6 – Demanded condition of TX part for duplexers . 15
Figure 7 – Phase rotation in TX part . 15
Figure 8 – Demanded condition of RX part for duplexers . 17
Figure 9 – Basic diplexer configuration . 17
Figure 10 – Basic multiplexer configuration . 18
Figure 11 – Typical wide range frequency response of TX filter . 19
Figure 12 – Typical wide range frequency response of RX filter for upper local system . 20
Figure 13 – Phase shifter by microstrip line on the surface of a ceramic package . 20
Figure 14 – Lumped element phase shifter . 21
Figure 15 – Duplexer configuration . 21
Figure 16 – Frequency characteristics of SAW duplexer for UMTS Band 1 system . 23
Figure 17 – Frequency characteristics of a SAW duplexer for US CDMA system . 25
Figure 18 – Frequency characteristics of BAW duplexer for PCS CDMA system . 26
Figure 19 – Frequency characteristics of SAW Band 1 + Band 3 multiplexer for LTE. 26
Figure 20 – Four-port-type network analyzer for duplexer measurement . 28
Figure 21 – Four-port-type network analyzer for measurement of a balanced RX port
duplexer. 29
Table 1 – Frequency allocation for typical LTE frequency division duplex (FDD) bands . 10
– 4 – IEC 62604-2:2022 RLV © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SURFACE ACOUSTIC WAVE (SAW) AND BULK
ACOUSTIC WAVE (BAW) DUPLEXERS
OF ASSESSED QUALITY –
Part 2: Guidelines for the use
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
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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 62604-2:2017. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.
IEC 62604-2 has been prepared by IEC technical committee 49: Piezoelectric, dielectric and
electrostatic devices and associated materials for frequency control, selection and detection. It
is an International Standard.
This third edition cancels and replaces the second edition published in 2017. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the term "cross-isolation" has been added to Clause 3;
b) multiplexers are described.
NOTE In this document, SAW and BAW duplexers are treated simultaneously because both duplexers are used in
the same manner, especially in mobile phone systems and have the same requirements of characteristics, test
method and so on.
The text of this International Standard is based on the following documents:
Draft Report on voting
49/1361/CDV 49/1376/RVC
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.
...
IEC 62604-2 ®
Edition 3.0 2022-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers of
assessed quality –
Part 2: Guidelines for the use
Duplexeurs à ondes acoustiques de surface (OAS) et à ondes acoustiques de
volume (OAV) sous assurance de la qualité –
Partie 2: Lignes directrices d’utilisation
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.
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ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
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les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
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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 Products & Services Portal - products.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
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
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containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
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IEC 62604-2 ®
Edition 3.0 2022-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers of
assessed quality –
Part 2: Guidelines for the use
Duplexeurs à ondes acoustiques de surface (OAS) et à ondes acoustiques de
volume (OAV) sous assurance de la qualité –
Partie 2: Lignes directrices d’utilisation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.140 ISBN 978-2-8322-4875-1
– 2 – IEC 62604-2:2022 © IEC 2022
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
3.1 Response characteristics related terms . 7
3.2 SAW and BAW duplexers related terms . 8
4 Technical considerations . 8
5 Fundamentals of SAW and BAW duplexers. 8
5.1 Basic function . 8
5.1.1 General . 8
5.1.2 TX filter response (filter response from TX port to antenna port) . 9
5.1.3 RX filter response (filter response from antenna port to RX port) . 10
5.1.4 Isolation (isolation from TX port to RX port) . 10
5.2 Basic structure . 11
5.3 Principle of operation . 11
5.4 Diplexer . 14
5.5 Multiplexer . 15
6 SAW and BAW duplexer characteristics . 15
6.1 General conditions for SAW and BAW duplexers . 15
6.2 Typical characteristics of SAW and BAW duplexers . 18
6.2.1 UMTS duplexer . 18
6.2.2 US CDMA duplexer . 18
6.2.3 PCS CDMA duplexer . 18
6.2.4 LTE Band 1 + Band 3 multiplexer. 19
7 Application guidelines . 23
7.1 Power durability . 23
7.2 Harmonics and inter-modulation distortion . 23
7.3 Measurement method for the duplexer . 23
7.4 Electrostatic voltage protection . 25
Bibliography . 26
Figure 1 – Basic duplexer configuration . 9
Figure 2 – Basic TX filter response example of SAW and BAW duplexers . 10
Figure 3 – Basic RX filter response example of SAW and BAW duplexers . 10
Figure 4 – Basic isolation characteristics example of SAW and BAW duplexers . 11
Figure 5 – The block diagram of a duplexer . 12
Figure 6 – Demanded condition of TX part for duplexers . 13
Figure 7 – Phase rotation in TX part . 13
Figure 8 – Demanded condition of RX part for duplexers . 14
Figure 9 – Basic diplexer configuration . 14
Figure 10 – Basic multiplexer configuration . 15
Figure 11 – Typical wide range frequency response of TX filter . 16
Figure 12 – Typical wide range frequency response of RX filter for upper local system . 17
Figure 13 – Phase shifter by microstrip line on the surface of a ceramic package . 17
Figure 14 – Lumped element phase shifter . 17
Figure 15 – Duplexer configuration . 18
Figure 16 – Frequency characteristics of SAW duplexer for UMTS Band 1 system . 20
Figure 17 – Frequency characteristics of a SAW duplexer for US CDMA system . 21
Figure 18 – Frequency characteristics of BAW duplexer for PCS CDMA system . 22
Figure 19 – Frequency characteristics of SAW Band 1 + Band 3 multiplexer for LTE. 23
Figure 20 – Four-port-type network analyzer for duplexer measurement . 24
Figure 21 – Four-port-type network analyzer for measurement of a balanced RX port
duplexer. 25
Table 1 – Frequency allocation for typical LTE frequency division duplex (FDD) bands . 9
– 4 – IEC 62604-2:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SURFACE ACOUSTIC WAVE (SAW) AND BULK
ACOUSTIC WAVE (BAW) DUPLEXERS
OF ASSESSED QUALITY –
Part 2: Guidelines for the use
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
...
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