专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

3. 发明公开

EP2430746A1 RECEIVER WITH BALANCED I/Q TRANSFORMER 有权
标题翻译： EMPFÄNGERMIT EINEM SYMMETRISCHEN I / Q-TRANSFORMATOR
公开(公告)号：EP2430746A1
公开(公告)日：2012-03-21
申请号：EP10721893.5
申请日：2010-05-17
申请人： QUALCOMM Incorporated
发明人： CHANG, Li-Chung , BHAGAT, Maulin P. , LEE, Hanil , SRIDHARA, Ravi
IPC分类号： H03D7/14
CPC分类号： H03D7/1466 , H03D7/1458 , H03D7/165 , H03D2200/0082
摘要： 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.
摘要翻译：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。

IPRDB

热门服务

关于我们

友情链接

联系方式