BS EN 60862-2:2012

What is BS EN 60862-2 - Guidelines for the use of Surface acoustic wave (SAW) filters about?  

BS EN 60862-2 is the second part of the multi-series standard used for Surface acoustic wave (SAW) filters. This is useful in evaluating the performance that results in manufacturing good quality Surface acoustic wave (SAW) filters.  

BS EN 60862-2 gives practical guidance on the use of SAW filters which are used in telecommunications, measuring equipment, radar systems, and consumer products. IEC 60862-1 should be referred to for general information, standard values, and test conditions. 

BS EN 60862-2 includes various kinds of filter configuration, of which the operating frequency range is from approximately 10 MHz to 3 GHz and the relative bandwidth is about 0,02 % to 50 % of the centre frequency. Standard specifications, given in IEC 60862 series, and national specifications or detail specifications issued by manufacturers, define the available combinations of nominal frequency, pass bandwidth, ripple, shape factor, terminating impedance, etc. These specifications are compiled to include a wide range of SAW filters with standardized performances. It cannot be over-emphasized that the user should, wherever possible, select his SAW filters from these specifications, when available, even if it may lead to making small modifications to his circuit to enable standard filters to be used. This applies particularly to the selection of the nominal frequency. 

Note: It is not the aim of this standard to explain a theory, nor to attempt to cover all the eventualities which may arise in practical circumstances. This standard draws attention to some of the more fundamental questions, which should be considered by the user before he places an 

order for a SAW filter for a new application. Such a procedure will be the user's insurance against unsatisfactory performance. 

Who is BS EN 60862-2 - Guidelines for the use of Surface acoustic wave (SAW) filters for? 

BS EN 60862-2on Surface acoustic wave (SAW) filters of assessed quality are useful for: 

• Manufacturer of electronic equipment 
• Telecommunication industry 
• Manufacturer of frequency devices 
• Aerospace  
• Defense 
• Electronic engineer 

Why should you use BS EN 60862-2 - Guidelines for the use of Surface acoustic wave (SAW) filters?  

SAW filters are useful in converting electrical energy into acoustic or mechanical energy on a piezoelectric material.  

BS EN 60862-2 is useful in determining the frequency response characteristics and general characteristics of these filters. This is useful in understanding the fundamentals of SAW resonator filters and also helps in classifying these resonator filters.  

BS EN 60862-2 can be your best guide in applying and identifying these substrate materials, electronic circuits, availability and limitations, and input levels of these filters. By using BS EN 60862-2 you can evaluate the performance and helps in manufacturing good quality Surface acoustic wave (SAW) filters used in electronic equipment.  

What’s changed since the last update?  

BS EN 60862-2:2012 supersedes BS EN 60862-2:2002. BS EN 60862-2:2012 includes some technical changes with respect to BS EN 60862-2:2002. These include: 

• Clause 3 “Terms and definitions” has been deleted to be included in the next edition of EN 60862-1 
• The tapered IDT filter and the RSPUDT filter have been added to the clause of SAW transversal filters. Also, DART, DWSF, and EWC have been added as variations of SPUDT 
• The balanced connection has been added to the sub clause of coupled-resonator filters 
• Recent substrate materials have been described 
• A sub clause about the packaging of SAW filters has been added.