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
射频辨识系统里，读取器传送未调变过之连
波讯号给
签，其不但可提供能量给签也
签反向散射讯号的载波。
波激光器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.
在超高频射频辨识系统里，读取器传送未调变过之连波讯号给签，其不但可提供能量给签也签反向散射讯号的载波。
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