公开(公告)号：JP2000114885A

公开(公告)日：2000-04-21

申请号：JP23329199

申请日：1999-08-19

Applicant: HARRIS CORP

Inventor： BORODULIN DMITRYI ,  POGGI PETER ,  HU ZHIQUN ,  CABERA GEORGE ,  DITTMER TIMOTHY ,  ROBERSTON BRYCE

IPC: G05B23/02 ,  H03F1/52 ,  H03F3/60 ,  H03G3/30

Abstract: PROBLEM TO BE SOLVED: To obtain a power amplifier with a monitoring device monitoring and protecting a system by providing a signal modulating means modulating the gain of an inputted signal and a monitor controlling means impressing a gain control signal to the signal modulating means. SOLUTION: Concerning a signal from power amplifiers PA-1 to PA-N, N inputted signal to be composed by a signal composer CB is impressed to a vector modulator 16 in a case when an RF switch 20 is on (closed), in order to provide an output signal impressed to a load L. A microcontroller MC controls the vector modulator for varying the phase and gain of an RF signal. In addition, the microcontroller MC monitors the operation of an amplifier system, varies the phase or gain of the RF signal and controls the operation of the switch 20 and a DC switch 40 to control the system. The signal modulating means varies the gain of the inputted signal and the monitor control means impresses the gain control signal to the signal modulating means in order to control the gain of the inputted signal.

公开(公告)号：CA2280471A1

公开(公告)日：2000-02-19

申请号：CA2280471

申请日：1999-08-18

Applicant: HARRIS CORP

Inventor： CABRERA GEORGE ,  DITTMER TIMOTHY ,  HU ZHIQUN ,  ROBERTSON BRYCE ,  BORODULIN DMITRIY ,  POGGI PETER

IPC: G05B23/02 ,  H03F1/52 ,  H03F3/60 ,  H03G3/30 ,  H03G3/20

Abstract: A power amplifier system is presented for amplifying an RF input signal. The system includes a vector modulator for receiving and modifying an input signal and providing therefrom a modified signal. The system also includes at least one power amplifier the operation of which is monitored and the vector modulator is controlled in accordance with the monitoring.

公开(公告)号：DE69942992D1

公开(公告)日：2011-01-13

申请号：DE69942992

申请日：1999-08-19

Applicant: HARRIS CORP

Inventor： BORODULIN DMITRYI ,  POGGI PETER ,  HU ZHIQUN ,  CABRERA GEORGE ,  DITTMER TIMOTHY ,  ROBERSTON BRYCE

IPC: G05B23/02 ,  H03F1/52 ,  H03F3/60 ,  H03F3/72 ,  H03G3/20 ,  H03G3/30

公开(公告)号：CA2280471C

公开(公告)日：2007-10-09

申请号：CA2280471

申请日：1999-08-18

Applicant: HARRIS CORP

Inventor： CABRERA GEORGE ,  HU ZHIQUN ,  DITTMER TIMOTHY ,  ROBERTSON BRYCE ,  POGGI PETER ,  BORODULIN DMITRIY

IPC: G05B23/02 ,  H03G3/20 ,  H03F1/52 ,  H03F3/20 ,  H03F3/60 ,  H03G3/30

Abstract: A power amplifier system is presented for amplifying an RF input signal. Th e system includes a vector modulator for receiving and modifying an input sign al and providing therefrom a modified signal. The system also includes at least one power amplifier the operation of which is monitored and the vector modulator is controlled in accordance with the monitoring.