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BS EN 62575-2:2012

$142.49

Radio frequency (RF) bulk acoustic wave (BAW) filters of assessed quality – Guidelines for the use

Published By Publication Date Number of Pages
BSI 2012 26
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This part of IEC 62575 gives practical guidance on the use of RF BAW filters which are used in telecommunications, measuring equipment, radar systems and consumer products. General information, standard values and test conditions will be provided in a future IEC standard1.

This part of IEC 62575 includes various kinds of filter configurations, of which the operating frequency range is from approximately 500 MHz to 10 GHz and the relative bandwidth is about 1 % to 5 % of the centre frequency.

PDF Catalog

PDF Pages PDF Title
5 English
CONTENTS
6 INTRODUCTION
7 1 Scope
2 Normative references
3 Technical considerations
8 4 Fundamentals of RF BAW filters
4.1 General
Figure 1 – Frequency response of a RF BAW filter
9 4.2 Fundamentals of RF BAW resonators
Figure 2 – Applicable range of frequency and relative bandwidth of the RF BAW filter and the other filters
10 Figure 3 – Basic BAW resonator structure
Figure 4 – BVD model
11 Figure 5 – Typical impedance characteristics
13 Figure 6 – Typical impedance characteristics of RF BAW devices
14 4.3 RF resonator structures
Figure 7 – Modified BVD model
15 Figure 8 – FBAR structures
16 4.4 Ladder filters
4.4.1 Basic structure
Figure 9 – SMR structure
Figure 10 – Structure of ladder filter
17 4.4.2 Principle of operation
Figure 11 – Equivalent circuit of basic section of ladder filter
Figure 12 – Basic concept of ladder filter
18 4.4.3 Characteristics of ladder filters
Figure 13 – Typical characteristics of a 1,9 GHz range ladder filter
19 5 Application guide
5.1 Application to electronics circuits
5.2 Availability and limitations
5.3 Input levels
6 Practical remarks
6.1 General
20 6.2 Feed-through signals
6.3 Load and source impedance conditions
7 Miscellaneous
7.1 Soldering conditions
7.2 Static electricity
8 Ordering procedure
23 Bibliography
BS EN 62575-2:2012
$142.49