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    • 120. 发明申请
    • RADIO FREQUENCY MULTIPLEXER
    • 无线电频率多路复用器
    • WO2016063108A1
    • 2016-04-28
    • PCT/IB2014/065517
    • 2014-10-21
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)JIAN, ChunyunSYCHALEUN, SomsackLIU, Wei
    • JIAN, ChunyunSYCHALEUN, SomsackLIU, Wei
    • H04B1/525
    • H04B1/525
    • A method and apparatus for routing transmit and receive signals in a radio RF front end. According to one aspect, the disclosure provides a multiplexer method and apparatus for routing transmit signals to an antenna and routing amplified receive signals to a receiver. The multiplexer includes a first hybrid coupler having a first frequency response and at least one other hybrid coupler having a second frequency response. The at least one other hybrid coupler is coupled to the first hybrid coupler by a first and second splitters each cascaded with a set of amplifying circuits for balanced amplification. In some embodiments, the second frequency response complements the first frequency response to increase cancellation of two signals arriving at an output port of the at least one other hybrid coupler from two different paths through the first and the at least one other hybrid couplers.
    • 一种用于在无线电RF前端中路由发送和接收信号的方法和装置。 根据一个方面,本公开提供了一种用于将发射信号路由到天线并将放大的接收信号路由到接收机的多路复用器方法和装置。 多路复用器包括具有第一频率响应的第一混合耦合器和具有第二频率响应的至少一个其它混合耦合器。 所述至少一个其它混合耦合器通过第一和第二分离器耦合到第一混合耦合器,第一和第二分离器与用于平衡放大的一组放大电路级联。 在一些实施例中,第二频率响应补充了第一频率响应,以增加通过第一和至少一个其它混合耦合器从两个不同路径到达至少一个其它混合耦合器的输出端口的两个信号的抵消。