公开(公告)号：US10075200B2

公开(公告)日：2018-09-11

申请号：US14560399

申请日：2014-12-04

Applicant: RF Micro Devices, Inc.

Inventor： Thomas Philip Budka

IPC: H04B1/00

CPC classification number: H04B1/006

Abstract: Antenna switching circuitry includes an antenna node, a number of signal path nodes, and a number of switching elements. Each one of the switching elements is coupled between a different one of the signal path nodes and the antenna node. At least two of the signal path nodes are coupled together in order to form a low distortion node, such that the switching elements between the low distortion node and the antenna node are used to pass a low-distortion radio frequency (RF) signal. By coupling two of the signal path nodes together, a low distortion signal path is created to the antenna. Creating a low distortion signal path using multiple switching elements allows for the size of the switching elements to remain small, which reduces the parasitic capacitance of each one of the switches and therefore the insertion loss of the antenna switching circuitry.

公开(公告)号：US20150155906A1

公开(公告)日：2015-06-04

申请号：US14560399

申请日：2014-12-04

Applicant: RF Micro Devices, Inc.

Inventor： Thomas Philip Budka

IPC: H04B1/44 ,  H04B15/00

CPC classification number: H04B1/006

Abstract: Antenna switching circuitry includes an antenna node, a number of signal path nodes, and a number of switching elements. Each one of the switching elements is coupled between a different one of the signal path nodes and the antenna node. At least two of the signal path nodes are coupled together in order to form a low distortion node, such that the switching elements between the low distortion node and the antenna node are used to pass a low-distortion radio frequency (RF) signal. By coupling two of the signal path nodes together, a low distortion signal path is created to the antenna. Creating a low distortion signal path using multiple switching elements allows for the size of the switching elements to remain small, which reduces the parasitic capacitance of each one of the switches and therefore the insertion loss of the antenna switching circuitry.

Abstract translation: 天线切换电路包括天线节点，多个信号路径节点和多个交换元件。 每个开关元件耦合在不同的一个信号路径节点和天线节点之间。 信号路径节点中的至少两个耦合在一起以形成低失真节点，使得低失真节点和天线节点之间的开关元件用于通过低失真射频（RF）信号。 通过将两个信号路径节点耦合在一起，向天线产生低失真信号路径。 使用多个开关元件创建低失真信号路径允许开关元件的尺寸保持较小，这降低了每个开关的寄生电容，并因此降低了天线切换电路的插入损耗。