公开(公告)号：US10574286B2

公开(公告)日：2020-02-25

申请号：US16118222

申请日：2018-08-30

Applicant: QUALCOMM Incorporated

Inventor： Cheng-Han Wang ,  Young Gon Kim ,  Kamal Aggarwal

IPC: H04B1/48 ,  H03F3/189 ,  H03H7/38 ,  H04B1/3805 ,  H04L5/14

Abstract: An RF front end provides high receive selectivity by selectively configuring matching networks within a Time Division Duplex transceiver. One or more elements of the transmit or receive signal paths are configured to perform multiple functions. Each of the functions can be performed in dependence on an operating mode of the RF front end. In some embodiments, one or more elements in the transmit or receive signal paths are reconfigured during receive portions of operation to provide additional receive selectivity.

公开(公告)号：US20140179241A1

公开(公告)日：2014-06-26

申请号：US13722668

申请日：2012-12-20

Applicant: Qualcomm Incorporated

Inventor： Kamal Aggarwal ,  Mounir Y. Bohsali ,  Mazhareddin Taghivand

IPC: H04B1/44

CPC classification number: H04B1/18 ,  H03H7/38 ,  H03H7/465 ,  H03H11/28 ,  H03H11/344 ,  H04B1/0458 ,  H04B1/525

Abstract: A concurrent matching network using transmission lines for low loss is disclosed. In an exemplary embodiment, an apparatus includes a first ¼ wavelength transmission line configured to couple a first signal path to a common node that is coupled to one or more additional signal paths. The apparatus also includes at least one switch configured to disable the first signal path causing the first ¼ wavelength transmission line to provide a first off-state impedance at the common node.

Abstract translation: 公开了一种使用低损耗传输线的并发匹配网络。 在示例性实施例中，一种装置包括配置成将第一信号路径耦合到耦合到一个或多个附加信号路径的公共节点的第一1/4波长传输线。 该装置还包括至少一个开关，其被配置为禁用导致第一1/4波长传输线在公共节点处提供第一截止状态阻抗的第一信号路径。