发明名称 |
Method and system for chopped antenna impedance measurements with an RFID radio |
摘要 |
Described herein are methods, devices and systems for characterizing an attached antenna to an electronic device, such as a radio frequency identification (“RFID”) reader. One exemplary embodiment is related to a method comprising outputting a low amplitude modulation (“AM”) index radio frequency (“RF”) waveform, the waveform simulating tag data timing and bandwidth, removing a direct current (“DC”) component from the waveform to create a chopped portion of the waveform, applying at least one vector analyzer technique on the chopped portion of the waveform, characterizing at least one antenna impedance vector of the waveform. |
申请公布号 |
US8135354(B2) |
申请公布日期 |
2012.03.13 |
申请号 |
US20090476320 |
申请日期 |
2009.06.02 |
申请人 |
DURON MARK;CONNOLLY SEAN;STRZELCZYK MARTIN;SYMBOL TECHNOLOGIES, INC. |
发明人 |
DURON MARK;CONNOLLY SEAN;STRZELCZYK MARTIN |
分类号 |
H04B17/00;H04B1/06;H04Q5/22 |
主分类号 |
H04B17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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