Abstract
Keywords - Radio frequency, scanning receiver, integration, remote keyless entry, TPMS
Abstract - The number of wireless functions in vehicles is growing: We have recently seen the TREAD Act. developing a standard for low tire pressure monitoring that will be mandatory for vehicles sold in North America beginning in 2006. Remote Keyless Entry systems and Passive Entry are present in most of new cars and due to the potential addition of new features to keyless entry, such as remote engine starting, easy go and others, the number of RF functions will continue to grow.
In most current architectures different RF functions have separate receivers. It is feasible, however, to allow both Keyless and TPMS to share the same receiver although they do not share the same transmitting format. As possible further step the integration of the receiver within body controllers can be envisioned. The benefit as a result of increased integration is the reduction of overall system cost.
Designing the next receiver generation requires in-depth RF knowledge of components and system architectures, to overcome challenges such as noise rejection and sensitivity issues, and therefore needs an innovative effort of design.
This paper describes and discusses the design of such an integrated receiver solution for RF functions.