公开(公告)号：US11075784B1

公开(公告)日：2021-07-27

申请号：US17014927

申请日：2020-09-08

申请人： Apple Inc.

发明人： Mark T. Dawkins ,  Yi-An Li ,  Yen-Ling Huang

IPC分类号： H04L27/20 ,  H04L27/26 ,  H04L7/033

摘要： The present disclosure is directed a wideband multiphase transmitter with two-point modulation. A transmitter includes a control circuit configured to receive a source signal having amplitude and phase components. Using the phase component, the control circuit generates a frequency control signal and a phase jump signal. The transmitter further includes a phase conversion circuit configured to generate a first phase-modulated signal using the phase component and the frequency control signal. The phase conversion circuit is also configured to adjust the phase of the first phase-modulated signal using the phase jump signal. The first phase-modulate signal and the amplitude component are provided to an amplifier, which generates a transmit signal based thereon.