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BS EN IEC 62604-2:2022 – TC

BS EN IEC 62604-2:2022 – TC

$217.84

Tracked Changes. Surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers of assessed quality – Guidelines for the use

Published By Publication Date Number of Pages
BSI 2022 78
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IEC 62604-2:2022 is available as IEC 62604-2:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.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.

PDF Catalog

PDF Pages PDF Title
1 30466441
45 A-30406654
46 undefined
51 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
52 Blank Page
53 English
CONTENTS
55 FOREWORD
57 INTRODUCTION
58 1 Scope
2 Normative references
3 Terms and definitions
3.1 Response characteristics related terms
59 3.2 SAW and BAW duplexers related terms
4 Technical considerations
5 Fundamentals of SAW and BAW duplexers
5.1 Basic function
5.1.1 General
60 5.1.2 TX filter response (filter response from TX port to antenna port)
Figures
Figure 1 – Basic duplexer configuration
Tables
Table 1 – Frequency allocation for typical LTE frequency division duplex (FDD) bands
61 5.1.3 RX filter response (filter response from antenna port to RX port)
5.1.4 Isolation (isolation from TX port to RX port)
Figure 2 – Basic TX filter response example of SAW and BAW duplexers
Figure 3 – Basic RX filter response example of SAW and BAW duplexers
62 5.2 Basic structure
5.3 Principle of operation
Figure 4 – Basic isolation characteristics example of SAW and BAW duplexers
63 Figure 5 – The block diagram of a duplexer
64 Figure 6 – Demanded condition of TX part for duplexers
Figure 7 – Phase rotation in TX part
65 5.4 Diplexer
Figure 8 – Demanded condition of RX part for duplexers
Figure 9 – Basic diplexer configuration
66 5.5 Multiplexer
6 SAW and BAW duplexer characteristics
6.1 General conditions for SAW and BAW duplexers
Figure 10 – Basic multiplexer configuration
67 Figure 11 – Typical wide range frequency response of TX filter
68 Figure 12 – Typical wide range frequency response of RX filter for upper local system
Figure 13 – Phase shifter by microstrip line on the surface of a ceramic package
Figure 14 – Lumped element phase shifter
69 6.2 Typical characteristics of SAW and BAW duplexers
6.2.1 UMTS duplexer
6.2.2 US CDMA duplexer
6.2.3 PCS CDMA duplexer
Figure 15 – Duplexer configuration
70 6.2.4 LTE Band 1 + Band 3 multiplexer
71 Figure 16 – Frequency characteristics of SAW duplexer for UMTS Band 1 system
72 Figure 17 – Frequency characteristics of a SAW duplexer for US CDMA system
73 Figure 18 – Frequency characteristics of BAW duplexer for PCS CDMA system
74 7 Application guidelines
7.1 Power durability
7.2 Harmonics and inter-modulation distortion
7.3 Measurement method for the duplexer
Figure 19 – Frequency characteristics of SAW Band 1 + Band 3 multiplexer for LTE
75 Figure 20 – Four-port-type network analyzer for duplexer measurement
76 7.4 Electrostatic voltage protection
Figure 21 – Four-port-type network analyzer for measurement ofa balanced RX port duplexer
77 Bibliography

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BS EN IEC 62604-2:2022 - TC
$217.84