Invention Grant
- Patent Title: Control system for a power amplifier
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Application No.: US15495284Application Date: 2017-04-24
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Publication No.: US09991860B2Publication Date: 2018-06-05
- Inventor: Martin Goss
- Applicant: Astrium Limited
- Applicant Address: GB Stevenage
- Assignee: Astrium Limited
- Current Assignee: Astrium Limited
- Current Assignee Address: GB Stevenage
- Agency: McCarter & English, LLP
- Agent David R. Burns
- Priority: EP11275122 20111010
- Main IPC: H03G1/00
- IPC: H03G1/00 ; H03F1/32 ; H03F3/19 ; H03F3/21 ; H03F1/02 ; H03G3/00

Abstract:
An apparatus for controlling the gain and phase of an input signal input to a power amplifier comprises a gain control loop configured to control the gain of the input signal based on power levels of the input signal and an amplified signal output by the power amplifier, to obtain a predetermined gain of the amplified signal, and a phase control loop configured to obtain an error signal related to a phase difference between a first signal derived from the input and a second signal derived from the amplified signal, and control the phase based on the error signal, to obtain a predetermined phase of the amplified signal. The phase control loop delays the first signal such that the delayed first signal and the second signal used to obtain the error signal correspond to the same part of the input signal. The apparatus may be included in a satellite.
Public/Granted literature
- US20170230021A1 CONTROL SYSTEM FOR A POWER AMPLIFIER Public/Granted day:2017-08-10
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