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
    • 3. 发明公开
    • RECEIVER WITH BALANCED I/Q TRANSFORMER
    • EMPFÄNGERMIT EINEM SYMMETRISCHEN I / Q-TRANSFORMATOR
    • EP2430746A1
    • 2012-03-21
    • EP10721893.5
    • 2010-05-17
    • QUALCOMM Incorporated
    • CHANG, Li-ChungBHAGAT, Maulin P.LEE, HanilSRIDHARA, Ravi
    • H03D7/14
    • H03D7/1466H03D7/1458H03D7/165H03D2200/0082
    • A receiver with a balanced I/Q transformer is described. In an exemplary design, the receiver includes an LNA that amplifies a received RF signal and provides a single-ended RF signal to the balanced I/Q transformer. The balanced I/Q transformer includes at least one primary coil and first and second secondary coils. The first secondary coil is magnetically coupled to the at least one primary coil and provides a first differential RF signal to a first mixer. The second secondary coil is magnetically coupled to the at least one primary coil and provides a second differential RF signal to a second mixer. The first and second mixers downconvert the first and second differential RF signals with I and Q LO signals, respectively, and provide differential I and Q downconverted signals. The primary and secondary coils may be fabricated on two conductive layers of an integrated circuit.
    • 描述了具有平衡I / Q变压器的接收机。 在示例性设计中,接收机包括放大接收的RF信号的LNA,并向平衡I / Q变压器提供单端RF信号。 平衡I / Q变压器包括至少一个初级线圈和第一和第二次级线圈。 第一次级线圈磁耦合到至少一个初级线圈,并向第一混频器提供第一差分RF信号。 第二次级线圈磁耦合到至少一个初级线圈,并向第二混频器提供第二差分RF信号。 第一和第二混频器分别用I和Q LO信号下变频第一和第二差分RF信号,并提供差分I和Q下变频信号。 初级线圈和次级线圈可以制造在集成电路的两个导电层上。