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US 7,253,681 B2Granted
Power amplifier with integrated sensors
AssigneeMicro Mobio Corporation
InventorsIkuroh Ichitsubo, Weiping Wang
Life of this patent
Estimating the term…
Abstract
An amplifier circuit for amplifying radio frequency signals includes a radio frequency power amplifier to receive an input radio frequency signal and to output an amplified radio frequency signal; one or more sensors coupled to the radio frequency power amplifier to provide a closed-loop feedback signal; and a power sensor coupled to the amplified radio frequency signal.
Claims17
An amplifier circuit for amplifying radio frequency signals, comprising:
- a radio frequency power amplifier to receive an input radio frequency signal and to output an amplified radio frequency signal;
- one or more sensors coupled to the radio frequency power amplifier to provide a closed-loop feedback signal;
- and
- a power sensor coupled to the amplified radio frequency signal, wherein the sensors comprise a gain sensor and a phase sensor coupled to the radio frequency power amplifier.
1 more element
A circuit for sensing radio frequency signals, comprising:
- a radio frequency power amplifier to receive an input radio frequency signal and to output an amplified radio frequency signal;
- a phase sensor coupled to the radio frequency power amplifier to provide a closed-loop phase feedback signal;
- a gain sensor coupled to the radio frequency power amplifier to provide a closed-loop gain feedback signal;
- and
- a power sensor coupled to the radio frequency power amplifier to provide a closed-loop power feedback signal, the power sensor providing a power-sensing signal, wherein the power sensor generates a power-sensing signal substantially proportional to the strength of the amplified radio frequency signal and wherein the power-sensing signal is provided to an external circuit through a low-pass filter.
2 more elements
A circuit for sensing radio frequency (RF) signals, comprising:
- a radio frequency power amplifier to receive an input radio frequency signal and to output an amplified radio frequency signal;
- one or more sensors coupled to the power amplifier to provide a closed-loop feedback signal;
- and
- a power sensor coupled to the power amplifier to provide a closed-loop power feedback signal, the power sensor providing a power-sensing signal, wherein the sensors comprise a gain sensor and a phase sensor coupled to the radio frequency power amplifier.
1 more element
Dependencies are inferred from the claim text.