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
频被动式射频辨

里,读取器传送未调变过之连续
讯号给标签,其不但可提供能量给标签也作为标签反向散射讯号的载
。


的;
的、一


