公开(公告)号：US08107914B2

公开(公告)日：2012-01-31

申请号：US12335905

申请日：2008-12-16

申请人： Daniel Firoiu ,  Damian Costa ,  Mats Lindstrom ,  Kendal McNaught-Davis Hess ,  Weinen Gao

发明人： Daniel Firoiu ,  Damian Costa ,  Mats Lindstrom ,  Kendal McNaught-Davis Hess ,  Weinen Gao

IPC分类号： H04B1/06 ,  H04B7/00 ,  H04B1/16 ,  H04B1/10 ,  H04B1/18 ,  H04B1/68 ,  H04B1/26

CPC分类号： H04B1/30

摘要： Radio-frequency (RF) circuits, methods and systems are implemented according to a variety of embodiments. According to one such embodiment, a radio-frequency (RF) receiver circuit is implemented with an adjustable RF filter circuit in a receive path of the RF receiver circuit. A local oscillator (LO) generates a LO signal and an RX_LO signal from the LO signal. A mixing circuit mixes a signal received from the adjustable RF filter circuit and the RX_LO signal. An intermediate-frequency (IF) circuit generates an IF_cal signal at the receiver circuit. A calibration circuit implements both a calibration mode and a receive mode. In the calibration mode, a calibration signal is injected into the receive path. A setting of the adjustable RF filter circuit is determined. In the receive mode, the calibration circuit disables the injection of the calibration signal into the receive path of the RF receiver circuit.

摘要翻译： 根据各种实施例实现射频（RF）电路，方法和系统。 根据一个这样的实施例，射频（RF）接收机电路在RF接收器电路的接收路径中用可调节RF滤波器电路实现。 本地振荡器（LO）从LO信号产生LO信号和RX_LO信号。 混合电路混合从可调RF滤波电路接收的信号和RX_LO信号。 中频（IF）电路在接收器电路处产生IF_cal信号。 校准电路同时实现校准模式和接收模式。 在校准模式下，将校准信号注入接收路径。 确定可调节RF滤波器电路的设置。 在接收模式下，校准电路禁止将校准信号注入RF接收器电路的接收路径。

公开(公告)号：US20100151806A1

公开(公告)日：2010-06-17

申请号：US12335905

申请日：2008-12-16

申请人： Daniel Firoiu ,  Damian Costa ,  Mats Lindstrom ,  Kendal McNaught-Davis Hess ,  Weinen Gao

发明人： Daniel Firoiu ,  Damian Costa ,  Mats Lindstrom ,  Kendal McNaught-Davis Hess ,  Weinen Gao

IPC分类号： H04B1/18 ,  H04B1/16

CPC分类号： H04B1/30

摘要： Radio-frequency (RF) circuits, methods and systems are implemented according to a variety of embodiments. According to one such embodiment, a radio-frequency (RF) receiver circuit is implemented with an adjustable RF filter circuit in a receive path of the RF receiver circuit. A local oscillator (LO) generates a LO signal and an RX_LO signal from the LO signal. A mixing circuit mixes a signal received from the adjustable RF filter circuit and the RX_LO signal. An intermediate-frequency (IF) circuit generates an IF_cal signal at the receiver circuit. A calibration circuit implements both a calibration mode and a receive mode. In the calibration mode, a calibration signal is injected into the receive path. A setting of the adjustable RF filter circuit is determined. In the receive mode, the calibration circuit disables the injection of the calibration signal into the receive path of the RF receiver circuit.

摘要翻译： 根据各种实施例实现射频（RF）电路，方法和系统。 根据一个这样的实施例，射频（RF）接收机电路在RF接收器电路的接收路径中用可调节RF滤波器电路实现。 本地振荡器（LO）从LO信号产生LO信号和RX_LO信号。 混合电路混合从可调RF滤波电路接收的信号和RX_LO信号。 中频（IF）电路在接收器电路处产生IF_cal信号。 校准电路同时实现校准模式和接收模式。 在校准模式下，将校准信号注入接收路径。 确定可调节RF滤波器电路的设置。 在接收模式下，校准电路禁止将校准信号注入RF接收器电路的接收路径。