发明名称 |
Linearity of an RF receive path by spurious tone suppression |
摘要 |
A method of increasing linearity of an RF signal receive path includes measuring a signal amplified by the receive path. The receive path has a local oscillator operating at an LO frequency and a ground. An error signal is determined from the amplified signal, the error signal being representative of the nonlinearity. An anti-spur tone is injected into the ground. The anti-spur tone has a frequency about equal to the LO frequency and an amplitude and phase that are determined to increase the linearity of the receive path. |
申请公布号 |
US8121576(B2) |
申请公布日期 |
2012.02.21 |
申请号 |
US20090492413 |
申请日期 |
2009.06.26 |
申请人 |
CHOO HUNSOO;ELAHI IMTINAN;MUHAMMAD KHURRAM;TEXAS INSTRUMENTS INCORPORATED |
发明人 |
CHOO HUNSOO;ELAHI IMTINAN;MUHAMMAD KHURRAM |
分类号 |
H04B1/10;H04K3/00 |
主分类号 |
H04B1/10 |
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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