TPMS receive antenna design for large vehicles

TPMS (Tire Pressure Monitoring System) is becoming an industry standard for driving safety and fuel efficiency. The receiving antenna for TPMS resides in the near field of the sensor antenna and this makes it very difficult to establish a reliable RF link for large vehicles. In the design of receiving antenna, it is paramount to consider the electric field distribution around the vehicle due to transmitter sensor. Through extensive large vehicle simulations, we show optimum locations for the receive antenna and we designed two candidate antennas for best reception.