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公开(公告)号:US20140097905A1
公开(公告)日:2014-04-10
申请号:US14105130
申请日:2013-12-12
Applicant: QUALCOMM INCORPORATED
Inventor: Yang XU , Timothy Paul PALS , Kevin Hsi Huai WANG
IPC: H03F3/04
CPC classification number: H03F3/04 , G01S19/21 , G01S19/34 , G01S19/36 , H03F1/02 , H03F1/223 , H03F1/3205 , H03F3/19 , H03F3/24 , H04B7/18513 , H04B2001/045 , Y02D70/1222 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/446
Abstract: A device includes a low noise amplifier (LNA) for amplifying an input signal, with the LNA including a first transistor configured to receive the input signal, a second transistor configured to receive a bias current and forming a current mirror for the first transistor, and an operational amplifier (op amp) operative to generate a bias voltage for the first and second transistors to match operating points of the first and second transistors.
Abstract translation: 一种器件包括用于放大输入信号的低噪声放大器(LNA),其中LNA包括被配置为接收输入信号的第一晶体管,被配置为接收偏置电流并形成用于第一晶体管的电流镜的第二晶体管,以及 运算放大器(op amp),用于产生第一和第二晶体管的偏置电压以匹配第一和第二晶体管的工作点。
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公开(公告)号:US20140099885A1
公开(公告)日:2014-04-10
申请号:US14105126
申请日:2013-12-12
Applicant: QUALCOMM INCORPORATED
Inventor: Yang XU , Timothy Paul PALS , Kevin Hsi Huai WANG
IPC: H04B7/185
CPC classification number: H03F3/04 , G01S19/21 , G01S19/34 , G01S19/36 , H03F1/02 , H03F1/223 , H03F1/3205 , H03F3/19 , H03F3/24 , H04B7/18513 , H04B2001/045 , Y02D70/1222 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/446
Abstract: A method of selecting a mode for an SPS receiver includes selecting either a first mode or a second mode for the SPS receiver based on a comparison between an output power of a communications transceiver and a mode switch point wherein the mode switch point is a power value. The first mode corresponds to a first bias current value of the SPS receiver, the second mode corresponds to a second bias current value of the SPS receiver, and the first bias current value is different from the second bias current value.
Abstract translation: 选择SPS接收机的模式的方法包括:基于通信收发器的输出功率与模式切换点之间的比较来选择用于SPS接收机的第一模式或第二模式,其中模式切换点是功率值 。 第一模式对应于SPS接收机的第一偏置电流值,第二模式对应于SPS接收机的第二偏置电流值,并且第一偏置电流值不同于第二偏置电流值。
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