Patents Assigned to Skyworks Solutions, Inc.
  • Patent number: 12381528
    Abstract: Bidirectional variable gain amplifiers (VGAs) for radio frequency (RF) communication systems are provided. In certain embodiments, a bidirectional VGA includes a first amplifier having an input coupled to a transmit/receive port, a second amplifier having an output coupled to a transmit port, a third amplifier having an input coupled to a receive port, a fourth amplifier having an output coupled to the transmit/receive port and to the input of the first amplifier, and a switch circuit that connects an output of the first amplifier to an input of the second amplifier in a transmit mode, and that connects an output of the third amplifier to an input of the fourth amplifier in a receive mode.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: August 5, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: John Jackson Nisbet, Hamed Golestaneh
  • Patent number: 12381522
    Abstract: Average power tracking (APT) systems with fast transient settling are disclosed. In certain embodiments, an APT system is used to provide a power amplifier supply voltage to a power amplifier that amplifies a radio frequency (RF) signal. The APT system controls the power amplifier supply voltage to track an average power of the RF signal, and includes a DC-to-DC converter that is assisted by an error amplifier in transitioning from one power amplifier supply voltage level to another power amplifier supply voltage level. Thus, the combination of a DC-to-DC converter with a fast changing error amplifier can swing enough AC voltage with a low enough slew rate to be able to rapidly transition the power amplifier supply voltage from one APT voltage level to another APT voltage level.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: August 5, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Haibo Cao, David Richard Pehlke
  • Patent number: 12381517
    Abstract: Amplification system having power amplifier memory correction and/or current collapse correction. In some embodiments, a power amplification system can include a power amplifier including an amplifying transistor configured to receive an input signal and provide an amplified signal, and a monitoring system configured to monitor one or more of a supply current for the amplifying transistor, an injection voltage point of the amplifying transistor, forward power at an output of the amplifying transistor, and temperature of the amplifying transistor. The power amplification system can further include a control system configured to obtain monitored information, and based on the information, generate a control signal for correcting either or both of a memory effect of the amplifying transistor and a current collapse effect of the amplifying transistor.
    Type: Grant
    Filed: September 19, 2022
    Date of Patent: August 5, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Patrick Marcus Naraine, Serge Francois Drogi
  • Patent number: 12381537
    Abstract: Dispersive delay lines are disclosed. A dispersive delay line can include a piezoelectric substrate having a first interdigital transducer electrode on a first region of the piezoelectric substrate and a second interdigital transducer electrode on a second region of the piezoelectric substrate. The dispersive delay line is arranged such that an acoustic wave is configured to propagate from the first interdigital transducer electrode to the second interdigital transducer electrode though a third region of the piezoelectric substrate. The third region of the piezoelectric substrate is configured as a waveguide and can have a thickness of less than half the wavelength of the acoustic wave. Related radio frequency modules, wireless communications devices, and methods are disclosed.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: August 5, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventor: Siarhei Dmitrievich Barsukou
  • Patent number: 12381474
    Abstract: Voltage generators with relatively low clock feedthrough are disclosed. A voltage generator can include a charge pump with a first set of two switches arranged between two voltages, a second set of two switches arranged between one of the two voltages and an output node, and a fly capacitor connected to the first and second sets of two switches. The voltage generator can include a clock generation circuit to provide clock signals such that the two switches of the first set transition state and the two switches of the second set transition state at different times. In certain embodiments, the charge pump includes a p-type fly capacitor connected to an output node by way of an n-type transistor. In some embodiments, a level shifter can generate a level shifted clock signal for the charge pump and includes cross coupled transistors to receive a regulated voltage provided to the voltage generator.
    Type: Grant
    Filed: July 17, 2023
    Date of Patent: August 5, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Jingfeng Gong, William Frede, Yeung Bun Choi
  • Patent number: 12374517
    Abstract: Fuse programming circuits, devices and methods. In some embodiments, a fuse circuit can include a fuse pad configured to receive a voltage, a fuse having a first end coupled to the fuse pad and a second end coupled to a switching element configured to enable a current to pass from the fuse pad to a ground potential.
    Type: Grant
    Filed: June 21, 2024
    Date of Patent: July 29, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventor: Bo Zhou
  • Patent number: 12374992
    Abstract: In some embodiments, a charge pump system can include a charge pump having a plurality of units driven by respective clock signals having different phases. The plurality of units can provide respective output voltages combined into an output voltage of the charge pump. The charge pump system can further include a feedback circuit configured to compare a scaled value of the output voltage with a reference voltage to generate a comparator output voltage. The charge pump system can further include a level shifter circuit configured to shift the comparator output voltage to a level of the output voltage of the charge pump.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: July 29, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Wei Liu, Abhishekh Devaraj, Sachin Nagarajan
  • Patent number: 12376341
    Abstract: In some embodiments, a semiconductor chip device can include a semiconductor substrate having a switching circuit with a first node, and a plurality of layers configured to support the semiconductor substrate and to provide electrical connections for the switching circuit between a second node connectable to a location external to the semiconductor chip and the first node. The plurality of layers can include a redistribution layer, and a signal path can be implemented as a part of the redistribution layer. The signal path can have a first end electrically connected to the first node and a second end electrically connected to the second node, and be configured to provide a selected inductance.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: July 29, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Peihua Ye, Guillaume Alexandre Blin, Thomas Obkircher
  • Patent number: 12375333
    Abstract: Apparatus and methods for sounding reference signal (SRS) switching are provided. In certain embodiments, a controller internal to the power amplifier module initiates a sequence of instructions, in response to a single command, that cause the antenna switch to actuate for transmission of the sounding reference signal symbol to a second antenna. The user equipment notifies the base station associated with the mobile device to withhold blanking symbols before and after a sounding reference signal symbol.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: July 29, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Serge Francois Drogi, David Steven Ripley, Dominique Michel Yves Brunel
  • Patent number: 12368430
    Abstract: A method of forming an acoustic wave device is disclosed. The method can include providing a structure having a support substrate that includes a first substrate portion, a second substrate portion, and a third substrate portion between the first portion and the second portion, a piezoelectric layer that includes a first portion over the first substrate portion and a second portion over the second substrate portion, a first interdigital transducer electrode on the first portion of the piezoelectric layer, and a second interdigital transducer electrode on the second portion of the piezoelectric layer. the method can also include etching at least a portion of the piezoelectric layer such that a region over the third substrate portion is free from the piezoelectric layer.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: July 22, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Rei Goto, Hironori Fukuhara
  • Patent number: 12368431
    Abstract: An acoustic wave filter includes a piezoelectric layer. A first acoustic wave device includes a portion of the piezoelectric layer and a first multi-layer interdigital transducer electrode disposed over the first portion of the piezoelectric layer. Additional acoustic wave devices are coupled to the first acoustic wave device, the additional acoustic wave devices including a second portion of the piezoelectric layer and a plurality of multi-layer interdigital transducer electrodes disposed over the second portion of the piezoelectric layer. At least one of the plurality of multi-layer interdigital transducer electrodes includes a layer that is thinner than a corresponding layer of the same material of the first multi-layer interdigital transducer electrode of the first acoustic wave device.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: July 22, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Benjamin Paul Abbott, Gong Bin Tang, Rei Goto, Keiichi Maki
  • Patent number: 12362776
    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 includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: July 15, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Fei Jia, Joshua Kawika Ellis, Kun Chen, Shayan Farahvash, Haisu Ju, Haibo Cao
  • Patent number: 12363931
    Abstract: This disclosure relates to bipolar transistors, such as heterojunction bipolar transistors, having increased collector thickness for improved ruggedness. In some embodiments, the collector thickness can be above 1.1 microns. The collector can have at least one doping concentration grading. The collector can have a high doping concentration at a junction between the collector and the sub-collector, such as at the high end of the grading. In some embodiments, the high doping concentration can be above about 9×1016 cm?3. The collector can include a region with high doping concentration adjacent the base. The collector can include a discontinuity in the doping concentration, such as at the low end of the grading. Such bipolar transistors can be implemented, for example, in power amplifiers.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: July 15, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kai Hay Kwok, Cristian Cismaru, Andre G. Metzger, Guoliang Zhou
  • Patent number: 12362763
    Abstract: In some embodiments, an analog-to-digital converter (ADC) architecture can be implemented to process a signal from a charge output sensor. The ADC architecture can include a summing node for receiving a sensor signal from the charge output sensor, and an output node implemented to provide a digital signal representative of the sensor signal. The ADC architecture can further include a charge amplifier implemented to receive an analog signal from the summing node as an input analog signal and generate an output analog signal with a gain, and an ADC circuit implemented to generate the digital signal based on the output analog signal from the charge amplifier. The ADC architecture can further include a feedback circuit implemented between the output node and the summing node.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: July 15, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Min Gyu Kim, Joseph Garrett Hamilton, Timir Nandi, Barkat A. Wani, Praveen Kumar Venkatachala, Wai Laing Lee, Michael Jon Wurtz, Humberto Campanella-Pineda
  • Patent number: 12348350
    Abstract: A receiver has a sample rate converter that outputs samples of orthogonal frequency division multiplexing symbols. The receiver includes a fast Fourier transform engine that receives the samples and converts them into a plurality of frequency domain sub-carriers. A timing control circuit generates a timing error and controls the sample rate converter to adjust a sample rate of the orthogonal frequency division multiplexing symbols based at least in part on the timing error.
    Type: Grant
    Filed: October 4, 2023
    Date of Patent: July 1, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Alexander Kleinerman, Connor William Blasie, Bradley Arthur Wallace
  • Patent number: 12348252
    Abstract: Systems and methods for magnitude and phase trimming are provided. In one aspect, a radio frequency (RF) trimmer circuit includes an input terminal configured to receive an RF signal, an output terminal configured to output the RF signal, a control input configured to receive a control signal, at least one impedance element, and at least one transistor configured to selectively connect the impedance element onto a path between the input and output terminals. The selectively connecting the impedance element controls at least one of a magnitude trim and a phase trim of the RF signal.
    Type: Grant
    Filed: September 20, 2023
    Date of Patent: July 1, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: John Jackson Nisbet, Hassan Sarbishaei, Guillaume Alexandre Blin
  • Patent number: 12341487
    Abstract: A surface acoustic wave device has a piezoelectric substrate having a cut angle (e.g., the piezoelectric angle is cut so as to have a crystal orientation) that allows the surface acoustic wave device to operate as a longitudinally leaky surface acoustic wave device that confines the acoustic wave energy within the piezoelectric substrate and that has less propagation attenuation and a higher electromechanical coupling coefficient k2.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: June 24, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Rei Goto, Keiichi Maki, Gong Bin Tang
  • Patent number: 12341495
    Abstract: Aspects of this disclosure relate to a multiplexer that includes a switchable acoustic wave filter. The switchable acoustic wave filter can include one or more acoustic wave resonators, switchable acoustic wave resonators, and a switch configurable into at least a first state and a second state. The switch can select a different subset of the switchable acoustic wave resonators to filter a radio frequency signal together with at least the one or more acoustic wave resonators in the first state than in the second state. Related filters, radio frequency systems, wireless communication devices, and methods are also disclosed.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: June 24, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Weimin Sun, Hai H. Ta, David Richard Pehlke
  • Patent number: 12334880
    Abstract: Apparatus and methods for reconfigurable power amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver configured to generate a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band, and a front-end system including a push-pull power amplifier configured to selectively amplify one of the first radio frequency signal or the second radio frequency signal based on a band control signal. The push-pull power amplifier includes an input balun, an output balun, and a pair of amplifiers coupled between the input balun and the output balun. The band control signal is operable to control an input capacitance of the pair of amplifiers.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Jinghang Feng, Srivatsan Jayaraman
  • Patent number: 12334885
    Abstract: Bias schemes for cascode power amplifiers are disclosed. In certain embodiments, a power amplifier system includes a cascode power amplifier biased by a first cascode bias voltage and that amplifies a radio frequency input signal. The power amplifier system further includes a bias voltage generation circuit including a first switch, a first cascode transmit mode bias circuit that provides the first cascode bias voltage to the cascode power amplifier through the first switch in a normal power transmit mode, a low power mode bias circuit that overrides the first cascode transmit mode bias circuit to set the first cascode bias voltage in a low power transmit mode, a second switch, and a sleep mode bias circuit that provides the first cascode bias voltage to the cascode power amplifier through the second switch in a sleep mode.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Bang Li Liang, Guillaume Alexandre Blin, Thomas Obkircher