公开(公告)号：US10367535B2

公开(公告)日：2019-07-30

申请号：US15844081

申请日：2017-12-15

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Nir Corse ,  Mark Rozental ,  Yaniv Salem

IPC: H03F1/32 ,  H03G3/30 ,  H04B1/04

CPC classification number: H04B1/04 ,  H03F1/3223 ,  H03F1/3247 ,  H03F1/3294 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/57 ,  H03G3/3042 ,  H04B2001/0416 ,  H04B2001/0433 ,  H04B2001/0441

Abstract: A Cartesian loop circuit includes a reference signal amplifier, a forward path coupled to the reference signal amplifier, a feedback path coupled to the forward path, and a controller. The forward path includes an up-mixer to up mix a forward path signal to a radio frequency signal. The feedback path includes a down-mixer to down mix a feedback signal to a frequency of a baseband reference signal inputted to the forward path. The feedback path provides the down-mixed feedback signal to the forward path. The controller is to perform power control at a low power by controlling a gain of the reference signal amplifier and is to perform power control at a high power by controlling a gain of the down-mixer. At the high power, the controller may perform power control by further controlling the gain of the up-mixer.

公开(公告)号：US20190190549A1

公开(公告)日：2019-06-20

申请号：US15844081

申请日：2017-12-15

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Nir Corse ,  Mark Rozental ,  Yaniv Salem

IPC: H04B1/04 ,  H03G3/30

CPC classification number: H04B1/04 ,  H03F1/3223 ,  H03F1/3247 ,  H03F1/3294 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/57 ,  H03G3/3042 ,  H04B2001/0416 ,  H04B2001/0433 ,  H04B2001/0441

Abstract: A Cartesian loop circuit includes a reference signal amplifier, a forward path coupled to the reference signal amplifier, a feedback path coupled to the forward path, and a controller. The forward path includes an up-mixer to up mix a forward path signal to a radio frequency signal. The feedback path includes a down-mixer to down mix a feedback signal to a frequency of a baseband reference signal inputted to the forward path. The feedback path provides the down-mixed feedback signal to the forward path. The controller is to perform power control at a low power by controlling a gain of the reference signal amplifier and is to perform power control at a high power by controlling a gain of the down-mixer. At the high power, the controller may perform power control by further controlling the gain of the up-mixer.

公开(公告)号：US10305518B1

公开(公告)日：2019-05-28

申请号：US15844081

申请日：2017-12-15

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Nir Corse ,  Mark Rozental ,  Yaniv Salem

IPC: H03F1/32 ,  H03G3/30 ,  H04B1/04

Abstract: A Cartesian loop circuit includes a reference signal amplifier, a forward path coupled to the reference signal amplifier, a feedback path coupled to the forward path, and a controller. The forward path includes an up-mixer to up mix a forward path signal to a radio frequency signal. The feedback path includes a down-mixer to down mix a feedback signal to a frequency of a baseband reference signal inputted to the forward path. The feedback path provides the down-mixed feedback signal to the forward path. The controller is to perform power control at a low power by controlling a gain of the reference signal amplifier and is to perform power control at a high power by controlling a gain of the down-mixer. At the high power, the controller may perform power control by further controlling the gain of the up-mixer.