Rectifier, received signal strength indicator, and receiver

A rectifier comprising:

• a class AB voltage-current converter including a first transistor of which a gate electrode is connected to a first input voltage and a second transistor of which a gate electrode is connected to a second input voltage;
• a third transistor including a source electrode connected to a source electrode of the first transistor, a drain electrode connected to a source electrode of the second transistor, and a gate electrode connected to the first input voltage;
• and
• a fourth transistor including a source electrode connected to the source electrode of the first transistor, a drain electrode connected to the source electrode of the second transistor, and a gate electrode connected to the second input voltage.

A received signal strength indicator, comprising:

• a plurality of differential amplifiers for forming an amplifier chain that amplifies differential signals;
• a plurality of rectifiers for rectifying output signals from the plurality of differential amplifiers and the differential signals, respectively;
• and
• a first low pass filter for combining output signals from the plurality of rectifiers and outputting received signal strength,
• wherein at least one input among inputs for the plurality of rectifiers includes a first input voltage and a second input voltage, and
• at least one among the plurality of rectifiers includes:
• a first transistor including a gate electrode connected to the first input voltage;
• and
• a second transistor including a source electrode connected to a source electrode of the first transistor, a drain electrode connected to a drain electrode of the first transistor, and a gate electrode connected to the second input voltage.

A receiver, comprising:

• a first low pass filter for filtering an in-phase signal;
• a second low pass filter for filtering a quadrature phase signal;
• and
• a received signal strength indicator,
• wherein the received signal strength indicator includes:
• a plurality of differential amplifiers forming an amplifier chain that uses the filtered in-phase signal and the filtered quadrature phase signal as differential signals and amplifies the differential signals;
• and
• a plurality of rectifiers for rectifying output signals from the plurality of differential amplifiers and the differential signals, respectively,
• wherein at least one among the plurality of rectifiers includes:
• a first transistor including a gate electrode connected to the first input voltage;
• and
• a second transistor including a source electrode connected to a source electrode of the first transistor, a drain electrode connected to a drain electrode of the first transistor, and a gate electrode connected to the second input voltage.