A vehicle tire interrogation system for interrogating sensors embedded in
a vehicle tire. The interrogation system both transmits and receives
appropriate RF signals to and from the sensors. The system includes
antennas operating at two separate frequency bands that have an input
impedance at both frequency bands at 50 ohms, are horizontally polarized,
and have a gain at a minimum of 2 dBi at the two frequency bands. The
antennas may be printed dual band antennas, such as wideband tapered slot
antennas, dual band printed dipoles with reflectors or Yagi-Uda array
antennas. The antennas can be embedded in various support structures to
protect both the antenna and the vehicle tires.