公开(公告)号：US20160094187A1

公开(公告)日：2016-03-31

申请号：US14500992

申请日：2014-09-29

Applicant: Freescale Semiconductor, Inc.

Inventor： JOSEPH STAUDINGER ,  ABDULRHMAN M.S. AHMED ,  PAUL R. HART ,  MONTE G. MILLER ,  NICHOLAS J. SPENCE

IPC: H03F1/02 ,  H03F3/21 ,  H04B1/04 ,  H03F3/19

CPC classification number: H03F1/0288 ,  H03F1/3247 ,  H03F1/3282 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/222 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2201/3233 ,  H03F2203/21106

Abstract: An embodiment of an amplifier system includes a modifiable signal adjustment device with an RF signal adjustment circuit coupled between first and second nodes. The RF signal adjustment circuit includes an adjustable phase shifter and an adjustable attenuator coupled in series with each other. The device also includes a memory and a controller circuit. The controller circuit retrieves a phase shift value and an attenuation value from the memory. The controller circuit then controls the adjustable phase shifter to apply a phase shift corresponding to the phase shift value to an input RF signal received at the first node, and controls the adjustable attenuator to apply an attenuation corresponding to the attenuation value to the input RF signal. Applying the phase shift and the attenuation results in an output RF signal at the second node.

Abstract translation: 放大器系统的实施例包括具有耦合在第一和第二节点之间的RF信号调整电路的可修改信号调整装置。 RF信号调节电路包括可调相移器和可调衰减器，它们彼此串联耦合。 该装置还包括存储器和控制器电路。 控制器电路从存储器检索相移值和衰减值。 然后，控制器电路控制可调移相器将对应于相移值的相移施加到在第一节点处接收的输入RF信号，并且控制可调衰减器将对应于衰减值的衰减应用于输入RF信号 。 应用相移和衰减导致第二节点处的输出RF信号。