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    • 5. 发明申请
    • COMMUNICATIONS CIRCUIT FOR REDUCING CROSSTALK
    • 通信电路减少CROSSTALK
    • US20120038420A1
    • 2012-02-16
    • US13177904
    • 2011-07-07
    • Jun Goo WONYoun Suk KIMKi Joong KIMJae Hyouck CHOIYoung Jean SONG
    • Jun Goo WONYoun Suk KIMKi Joong KIMJae Hyouck CHOIYoung Jean SONG
    • H03F1/00
    • H03F3/24H03F3/195H03F2200/111H03F2200/541Y10T307/398
    • There is provided a communications circuit for reducing crosstalk. The communications circuit for reducing crosstalk may include: a conductive power supply pattern supplying driving power applied from the outside; a first transformer implemented as an integrated passive device (IPD) type having a first input conductive line receiving a first signal of a low-frequency band received from a first power amplifier and a first output conductive line close to the first input conductive line and electromagnetically coupled with the first input conductive line, and receiving the driving power supplied from the conductive power supply pattern through a terminal formed on the first input conductive line; and a second transformer implemented as the IPD type having a second input conductive line receiving a second signal of a high-frequency band received from a second power amplifier and a second output conductive line close to the second input conductive line and electromagnetically coupled with the second input conductive line, and receiving the driving power supplied from the conductive power supply pattern through a terminal formed on the second input conductive line, and the conductive power supply pattern may include an inductor component. Therefore, crosstalk between the low-frequency band and the high-frequency band can be reduced.
    • 提供了用于减少串扰的通信电路。 用于减少串扰的通信电路可以包括:提供从外部施加的驱动电力的导电电源图案; 实现为集成无源器件(IPD)类型的第一变压器,其具有接收从第一功率放大器接收的低频带的第一信号的第一输入导线和靠近第一输入导线的第一输出导线,并且以电磁方式 耦合第一输入导线,并且通过形成在第一输入导线上的端子接收从导电电源图案提供的驱动电力; 以及实现为IPD类型的第二变压器,其具有接收从第二功率放大器接收的高频带的第二信号的第二输入导线和靠近第二输入导线并与第二输入导线电磁耦合的第二输出导线 输入导线,并且通过形成在第二输入导线上的端子接收从导电电源图案提供的驱动电力,并且导电电源图案可以包括电感器部件。 因此,可以降低低频带与高频带之间的串扰。