PDF_AN4Application Note SAW-Components Matching of the B3550 and optimising the crosstalk by evaluating a good RF layout App. Note #4 For SAW filter performance a good matching to source and load impedance is important. A procedure is described to match a SAWF (B3550) to the desired input impedance of a receiver front-end. For best SAW filter selectivity (good ultimate rejection), PCB layout is important. Hints are given for a optimised layout structure. Author: Updated: Version: Department: Alexander Glas June 6, 2001 1.5 SAW CE AE PD EPCOS AG SAW Components D-81617 Munich P.O. Box 801709 http://www.epcos.com SAW Components Application: Matching and optimised PCB for B3550 Introduction SAW filters are used in RF receivers to increase the system sensitivity and selectivity. The B3550 is an……