SENSOR TAG AND METHOD FOR MANUFACTURING SENSOR TAG

摘要

A sensor tag (10) is provided with a crystal oscillator (110) and an antenna (102). Said antenna (102) is provided with a radiating conductor (121) and connecting conductors (122). The crystal oscillator (110) is mounted on land conductors (120) provided at the ends of the connecting conductors (122) facing away from the antenna (121). The antenna (102) is shaped such that, given the resonant frequency (Fxs) and equivalent inductance (Lxs) of the crystal oscillator (110) and the self-resonant frequency (Fant) and equivalent inductance (Lant) of the antenna (102), the amount of shift (&Dgr;F) in the radiating frequency of the sensor tag (10) falls within an acceptable range.