Tire sensor

A tire monitoring device for monitoring various tire conditions of a tubeless tire mounted on a vehicle wheel rotatably mounted on an axle of a vehicle, said vehicle having an underbody and wheel wells for housing the vehicle wheel, said wheel having a recessed portion of the wheel and a wheel rim defining the recessed portion, said tire monitoring device comprising:

• a composite wheel having a recessed portion of the wheel and a wheel rim defining the recessed portion suitable for supporting a tubeless tire mounted thereon wherein said composite wheel is made from a material being selected from the group consisting of graphite, plastics, double skinned reinforced foam-center plastic composites, composite coated steel rim wheels, aluminum alloys, Kevlar reinforced plastics and metal mesh reinforced plastics:
• at least one wire free transmitter and a receiver incorporated into and embedded into the surface of the composite wheel in the recessed portions of the wheel such that the transmitter and receiver are both permanently embedded into the composite wheel, and said transmitter and receiver are both adapted for monitoring, transmitting and receiving signals about the tire condition, said transmitter transmitting signals having a wavelength of from about 1 to about 150 Hz;
• an embedded antenna permanently incorporated into the recessed portion of the composite wheel, such that the antenna becomes a part of the wheel, with an antenna winding length of from about 0.5 to about 5.0 meters long.