-
公开(公告)号：US12231099B2
公开(公告)日：2025-02-18
申请号：US18509060
申请日：2023-11-14
Applicant: Skyworks Solutions, Inc.
Inventor： Aleksey A. Lyalin , Huiming Xu , Shayan Farahvash , Reinhard Ulrich Mahnkopf
Abstract: Composite cascode power amplifiers for envelope tracking applications are provided herein. In certain embodiments, an envelope tracking system includes a composite cascode power amplifier that amplifies a radio frequency (RF) signal and that receives power from a power amplifier supply voltage, and an envelope tracker that generates the power amplifier supply voltage based on an envelope of the RF signal. The composite cascode power amplifier includes an enhancement mode (E-MODE) field-effect transistor (FET) for amplifying the RF signal and a depletion mode (D-MODE) FET in cascode with the E-MODE FET.
-
公开(公告)号：US20240405736A1
公开(公告)日：2024-12-05
申请号：US18807446
申请日：2024-08-16
Applicant: Skyworks Solutions, Inc.
Inventor： Joel Richard King , Shayan Farahvash
Abstract: Apparatus and methods for power amplifier power management are disclosed. In certain embodiments, a mobile device includes a transceiver that generates a radio frequency signal, a front-end system including a first power amplifier module that amplifies the radio frequency signal, and a power management system including an envelope tracking power management unit that provides an envelope tracking supply voltage to the first power amplifier module, and a first average power tracking power management unit that provides an average power tracking supply voltage to the first power amplifier module. The first power amplifier module is configured to selectively switch between the envelope tracking supply voltage and the average power tracking supply voltage.
-
公开(公告)号：US12126307B2
公开(公告)日：2024-10-22
申请号：US17445179
申请日：2021-08-16
Applicant: Skyworks Solutions, Inc.
Inventor： Florinel G. Balteanu , Serge Francois Drogi , Robert John Thompson , Shayan Farahvash , David Richard Pehlke , Stephan Henzler
CPC classification number: H03F1/0238 , H03F3/245 , H04B1/40 , H03F2200/105 , H03F2200/165 , H03F2200/451
Abstract: Power amplifier modules with controllable envelope tracking noise filters are provided herein. In certain embodiments, an envelope tracking system includes a power amplifier module and an envelope tracker that provides the power amplifier module with a power amplifier supply voltage that changes based on an envelope of a radio frequency (RF) signal amplified by the power amplifier module. The power amplifier module includes a controllable filter that filters the power amplifier supply voltage to provide flexibility in filtering envelope tracking noise.
-
公开(公告)号：US12003263B2
公开(公告)日：2024-06-04
申请号：US17410902
申请日：2021-08-24
Applicant: Skyworks Solutions, Inc.
Inventor： Fei Jia , Joshua Kawika Ellis , Kun Chen , Shayan Farahvash , Haisu Ju , Haibo Cao
CPC classification number: H04B1/1036 , H03F3/245 , H03H7/0115 , H04M1/0202 , H03F2200/171 , H04B2001/1063 , H04B2001/1072
Abstract: Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter is coupled between an antenna switch and an antenna node. The second tunable filter has a notch at a lower frequency than a notch of the first tunable filter. Related methods and wireless communication devices are also disclosed.
-
公开(公告)号：US20230017220A1
公开(公告)日：2023-01-19
申请号：US17934340
申请日：2022-09-22
Applicant: Skyworks Solutions, Inc.
Inventor： Aleksey A. Lyalin , Huiming Xu , Shayan Farahvash , Georgios Palaskas
Abstract: Power amplifiers with adaptive bias for envelope tracking applications are provided herein. In certain embodiments, an envelope tracking system includes a power amplifier that amplifies a radio frequency (RF) signal and that receives power from a power amplifier supply voltage, and an envelope tracker that controls a voltage level of the power amplifier supply voltage based on an envelope of the RF signal. The power amplifier includes a current mirror having an input that receives a reference current, an output electrically connected to the power amplifier supply voltage, and a node that outputs a gate bias voltage. The power amplifier further includes a field-effect transistor that amplifies the radio frequency signal and a first depletion-mode transistor having a gate connected to the node of the current mirror and a source connected to a gate of the field-effect transistor.
-
Patent Agency Ranking
公开(公告)号：US20220182085A1
公开(公告)日：2022-06-09
申请号：US17457395
申请日：2021-12-02
Applicant: Skyworks Solutions, Inc.
Inventor： Joel Richard King , Tianming Chen , Shayan Farahvash , Stephane Richard Marie Wloczysiak , Anand Raghavan , David Richard Pehlke
Abstract: Radio frequency front end modules are provided. In one aspect, a front end system includes at least one power amplifier configured to amplify a transmit radio frequency signal, at least one low noise amplifier configured to receive a receive radio frequency signal, an output node coupled to an antenna. The front end system also includes a first switch configured to selectively couple the output node to the at least one power amplifier during a transmit period and to the at least one low noise amplifier during a receive period, at least one transmit filter coupled between the power amplifier and the at least one switch, and at least one receive filter coupled between the low noise amplifier and the at least one switch. The front end system further includes a transmit supplemental filter, a receive supplemental filter, and a second switch.
-
公开(公告)号：US20220085766A1
公开(公告)日：2022-03-17
申请号：US17456955
申请日：2021-11-30
Applicant: Skyworks Solutions, Inc.
Inventor： Florinel G. Balteanu , Serge Francois Drogi , Shayan Farahvash , David Richard Pehlke
Abstract: Multi-level envelope trackers with an analog interface are provided herein. In certain embodiments, an envelope tracking system for generating a power amplifier supply voltage for a power amplifier is provided. The envelope tracking system includes a multi-level supply (MLS) DC-to-DC converter that outputs multiple regulated voltages, and an MLS modulator that controls selection of the regulated voltages over time based on an analog envelope signal corresponding to an envelope of the RF signal amplified by the power amplifier.
-
公开(公告)号：US11038471B2
公开(公告)日：2021-06-15
申请号：US16678696
申请日：2019-11-08
Applicant: Skyworks Solutions, Inc.
Inventor： Serge Francois Drogi , Florinel G. Balteanu , Shayan Farahvash
IPC: H03F1/30 , H03F1/02 , H03F3/195 , H03F3/24 , G06F30/367 , G06F119/06 , G06F119/10
Abstract: Envelope tracking systems with modeling for power amplifier supply voltage filtering are provided herein. In certain embodiments, an envelope tracking system includes a supply voltage filter, a power amplifier that receives a power amplifier supply voltage through the supply voltage filter, and an envelope tracker that generates the power amplifier supply voltage. The power amplifier provides amplification to a radio frequency (RF) signal that is generated based on digital signal data, and the envelope tracker generates the power amplifier supply voltage based on an envelope signal corresponding to an envelope of the RF signal. The envelope tracking system further includes digital modeling circuitry that models the supply voltage filter and operates to digitally compensate the digital signal data for effects of the supply voltage filter, such as distortion.
-
公开(公告)号：US12199651B2
公开(公告)日：2025-01-14
申请号：US17351886
申请日：2021-06-18
Applicant: Skyworks Solutions, Inc.
Inventor： Kun Chen , Joshua Kawika Ellis , Shayan Farahvash , Haibo Cao
Abstract: Aspects of this disclosure relate to a tunable filter with tunable rejection. The tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The tunable impedance circuit is configured to adjust at least two notches in a frequency response of the tunable filter by changing a state of a switch. The tunable filter can filter a radio frequency signal. Related methods, radio frequency systems, radio frequency modules, and wireless communication devices are also disclosed.
-
公开(公告)号：US20240396577A1
公开(公告)日：2024-11-28
申请号：US18649371
申请日：2024-04-29
Applicant: Skyworks Solutions, Inc.
Inventor： Joel Richard King , Tianming Chen , Shayan Farahvash , Stephane Richard Marie Wloczysiak , Anand Raghavan , David Richard Pehlke
Abstract: Radio frequency front end modules are provided. In one aspect, a front end system includes at least one power amplifier configured to amplify a transmit radio frequency signal, at least one low noise amplifier configured to receive a receive radio frequency signal, an output node coupled to an antenna. The front end system further includes at least one switch configured to selectively couple the output node to the at least one power amplifier during a transmit period and to the at least one low noise amplifier during a receive period, at least one transmit filter coupled between the power amplifier and the at least one switch, and at least one receive filter coupled between the low noise amplifier and the at least one switch.
-
-
-
-
-
-
-
-
-
Search Results
57
records
(took 0.023 seconds)
