In a UHF passive RFID system, a reader transmits an unmodulated continuous wave (CW) to tags, which not only provides energy to tags but also serves as the carrier of tag backscatter signals.
在超高频被动式射频辨识系统里,传送未调变过连续波讯号给,不但可提供能量给也作为反向散射讯号的载波。
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