发明名称 |
A near field communications reader |
摘要 |
The present application relates to a near field communications (NFC) reader having a power amplifier which has an output that connects to an input terminal of an antenna by means of an antenna filter made up of one or more series resistors and one or more series capacitors. The NFC reader includes means for adjusting the Q factor of the antenna so as to increase the available transmit bandwidth and/or improve the efficiency of the reader. The means for adjusting the Q factor of the antenna may be, for example, a variable resistive component or one or more switches. |
申请公布号 |
GB2496459(B) |
申请公布日期 |
2014.06.04 |
申请号 |
GB20110020192 |
申请日期 |
2011.11.23 |
申请人 |
CAMBRIDGE SILICON RADIO LIMITED |
发明人 |
ANTONY LAWRENCE MCFARTHING |
分类号 |
H04B1/04;G06K7/00;H01Q5/10;H04B5/00 |
主分类号 |
H04B1/04 |
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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