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.
在超高被动辨识系统里,读取器传送未调变过连续波讯号标签,其不但可提供标签也作为标签反向散讯号的载波。
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