| 摘要 |
A carrier shower system is provided to improve a recognition rate of a tag by transferring a signal for supplying energy of certain strength to the tag although the distance between a reader and the tag is increased. The first and second signal combining units(140,142) combines RF(Radio Frequency) signals received from a tag(300) or a reader(200). A voltage adjusting unit(170) adjusts the voltage of the combined signal to a certain level. A signal conversion unit(150) synthesizes an RF signal transferred from an antenna into an IF(Intermediate Frequency) signal by using the voltage-adjusted signal as an oscillation frequency signal. A signal processing unit(160) processes the IF signal into a digital signal. An RF radiating unit(194) generates an RF signal for an energy supply by using the combined signal. The first antenna(110) receives an RF signal from the tag or the reader. The second antenna(196) is connected with the RF radiating unit and transmits the RF signal for an energy supply.
|
