会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 73. 发明申请
    • High linearity and low noise CMOS mixer and signal mixing method
    • 高线性度和低噪声CMOS混频器和信号混合方法
    • US20060035611A1
    • 2006-02-16
    • US10917891
    • 2004-08-13
    • Lawrence ConnellYan CuiPoojan WaghPatrick Rakers
    • Lawrence ConnellYan CuiPoojan WaghPatrick Rakers
    • H04B7/00
    • H03D7/1441H03D7/1458H03D7/1466H03D2200/0025H03D2200/0088H04B1/30
    • Method and apparatus are provided for high linearity and low noise communication signal mixing. The apparatus includes a high linearity low noise mixer having an input stage coupled to a switch stage by a series-coupled blocking capacitance and input resistance. The input stage includes a buffer with negative feedback, and the switch stage includes a transistor based switch network connected to an amplifier that has feedback resistance and shunting capacitance. The method includes AC coupling an RF signal, increasing a gain of the RF signal, reducing third-order distortion by negatively feeding-back the RF signal, blocking IM2 generated from said gain increasing step, increasing a second-order input intercept point (IIP2) by attenuating the RF signal across a resistance, and applying a local oscillator input to the RF signal.
    • 提供了高线性度和低噪声通信信号混合的方法和装置。 该装置包括具有通过串联耦合的阻塞电容和输入电阻耦合到开关级的输入级的高线性度低噪声混合器。 输入级包括具有负反馈的缓冲器,并且开关级包括连接到具有反馈电阻和分流电容的放大器的基于晶体管的开关网络。 该方法包括AC耦合RF信号,增加RF信号的增益,通过负反馈RF信号减少三阶失真,阻止从所述增益增加步骤产生的IM2,增加二阶输入截点(IIP2 ),通过跨越电阻衰减RF信号,以及将本地振荡器输入施加到RF信号。