Skyworks Solutions, Inc Patent Portfolio Statistics

Publication number: US20220021468A1
Application number: 17/449,511

Abstract:
Apparatus and methods for envelope alignment calibration in radio frequency (RF) systems are provided. In certain embodiments, calibration is performed by providing an envelope signal that is substantially triangular along an envelope path, and by providing an RF signal to a power amplifier along an RF signal path. Additionally, an output of the power amplifier is observed to generate an observation signal using an observation receiver. The observation signal includes a first peak and a second peak, and a delay between the envelope signal and the RF signal is controlled based on relative size of the peaks of the observation signal to one another.

Publication date: 2022-01-20
Applicant: Skyworks Solutions, Inc.
Inventors: Dicarlo Paul T

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Publication number: US20220021359A1
Application number: 17/449,305

Abstract:
Apparatus and methods for true power detection are provided herein. In certain embodiments, a power amplifier system includes an antenna, a directional coupler, and a power amplifier electrically connected to the antenna by way of a through line of the directional coupler. The power amplifier system further includes a first switch, a second switch, and a combiner that combines a first coupled signal received from a first end of the directional coupler's coupled line through the first switch and a second coupled signal received from a second end of the directional coupler's coupled line through the second switch.

Publication date: 2022-01-20
Applicant: Skyworks Solutions, Inc.
Inventors: Arfaei Foad Malekzadeh

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Publication number: US20220021351A1
Application number: 17/449,307

Abstract:
Radio frequency (RF) amplifiers with overload protection are provided herein. In certain configurations, an RF amplifier system includes an RF amplifier that receives an RF signal from an input terminal. The RF amplifier includes an amplification field-effect transistor (FET) having a gate that receives the RF signal, and a degeneration circuit connected between a source of the amplifier FET and a ground voltage. The RF amplifier system further includes an electrostatic discharge protection circuit including a plurality of protection diodes electrically connected in series between the input terminal and the ground voltage, and a detector having an input connected along an electrical path through the plurality of protection diodes and an output that generates a detection signal operable to control an amount of degeneration provided by the degeneration circuit.

Publication date: 2022-01-20
Applicant: Skyworks Solutions, Inc.
Inventors: Leslie Paul Wallis

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