发明名称 RFID READING DEVICE AND A METHOD IN AN RFID READING DEVICE
摘要 The invention relates to an RFID reader and method for it. The reader comprises a transmitter portion, a receiver portion, and an antenna or antenna group connected to them. According to the invention, the transmitter portion comprises a reactive power divider, in which there are at least two reactive branches (La, Lr), one branch for feeding the signal to the antenna and a second branch for a variable resistor.
申请公布号 US2010253477(A1) 申请公布日期 2010.10.07
申请号 US20080746789 申请日期 2008.12.17
申请人 SEPPAE HEIKKI;PURSULA PEKKA 发明人 SEPPAE HEIKKI;PURSULA PEKKA
分类号 H04Q5/22 主分类号 H04Q5/22
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