A new modular design for test and application PCBs of SAW RF filters to ensure precisely predictable filter characteristics

This paper presents the design of an optimized test and application setup for surface acoustic wave (SAW) RF filters. These structures have been investigated, including the test devices, by simulation techniques based on full-wave methods and common SAW simulation methods. In this paper, the simulation technique will be explained in detail, focusing on the interfaces of the simulation models. Parasitic electromagnetic effects in the test and application setup will be analyzed by simulation and measurement. This paper demonstrates the possibility of accurate performance prediction of SAW RF filters using specially designed test setups in the measurement and an optimized application environment, e.g., in mobile phones. Modular parts for such test setups and the application environment are discussed.