Patents by Inventor Kunal DATTA

Kunal DATTA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • LOAD MODULATED POWER AMPLIFIERS WITH PHASE COMPENSATION
    Publication number: 20260088763
    Abstract: Load modulated power amplifiers with phase compensation are disclosed herein. In certain embodiments, a load modulated power amplifier includes a load modulation capacitor, a pair of amplifiers, an output balun having a primary winding connected between the outputs of the pair of amplifiers and a secondary winding connected between an output terminal and the load modulation capacitor, and a load modulation control amplifier that controls a capacitance value of the load modulation capacitor based on an envelope of a radio frequency (RF) signal received at an input terminal to the load modulated power amplifier. The load modulated power amplifier further includes a phase modulation capacitor connected along an RF signal path between the input terminal and the output terminal and a phase modulation control amplifier that controls a capacitance value of the phase modulation capacitor to provide phase compensation.
    Type: Application
    Filed: September 18, 2025
    Publication date: March 26, 2026
    Inventors: Kunal Datta, Srivatsan Jayaraman
  • Stability in power amplifiers under high in-band voltage standing wave ratio condition
    Patent number: 12587149
    Abstract: In some embodiments, stability in power amplifiers can be achieved under high in-band voltage standing wave ratio condition, with an amplifier circuit that includes an amplifier having a first stage and a second stage, with each stage including an input and an output, such that the output of the first stage is coupled to the input of the second stage. The amplifier circuit further includes a stabilizing circuit implemented on the input side of the second stage and configured to provide stability in operation of the amplifier under a high in-band voltage standing wave ratio condition.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: March 24, 2026
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Khaled A. Fayed, Edward James Anthony, Srivatsan Jayaraman
  • Balun transformer circuit for reduction of an impedance of a differential power amplifier load line
    Patent number: 12574000
    Abstract: Apparatus and methods for balun transformer circuits within electronic devices are provided. In certain embodiments, balun transformer circuits are used for reduction of an impedance of a differential load line of a differential power amplifier.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: March 10, 2026
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Shihan Qin, Srivatsan Jayaraman
  • Gain boosting in power amplifiers using RF-coupled feedback
    Patent number: 12531527
    Abstract: A power amplifier comprises a first amplification stage having an input terminal receiving a radio frequency (RF) signal to be amplified and having a first coupling unit, a second amplification stage outputting an amplified radio frequency signal and having a second coupling unit and a third coupling unit providing RF feedback to the input terminal of the first amplification stage through an RF feedback path, the second coupling unit being coupled to the first coupling unit, and the third coupling unit being coupled to the first coupling unit.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: January 20, 2026
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Khaled A. Fayed
  • RECONFIGURABLE POWER AMPLIFIERS WITH CONTROLLABLE OUTPUT CAPACITANCE
    Publication number: 20250392272
    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 output capacitance of the pair of amplifiers.
    Type: Application
    Filed: June 30, 2025
    Publication date: December 25, 2025
    Inventors: Kunal Datta, Jinghang Feng, Srivatsan Jayaraman
  • Apparatus and methods for biasing of power amplifiers
    Patent number: 12500550
    Abstract: Apparatus and methods for biasing power amplifiers are provided herein. In certain embodiments, a power amplifier includes a bipolar transistor having a base biased by a bias network having a reactance that controls an impedance at the transistor base to achieve substantially flat phase response over large dynamic power levels. For example, the bias network can have a frequency response, such as a high-pass or band-pass response, that reduces the impact of power level on phase distortion (AM/PM).
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: December 16, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Khaled A. Fayed, Edward James Anthony, Srivatsan Jayaraman, Jinghang Feng
  • Gain boosting in envelope tracking power amplifiers using RF-coupled feedback
    Patent number: 12500557
    Abstract: An envelope tracking system has an envelope tracker that is configured to generate a power amplifier supply voltage that changes is relation to an envelope of a radio frequency signal, and a power amplifier comprises at least a first amplification stage having an input terminal receiving a radio frequency (RF) signal to be amplified. The power amplifier has a first coupling unit, and a second coupling unit inductively coupled with the first coupling unit, the second coupling unit provides radio frequency-coupled feedback to the input terminal of the first amplification stage through a radio frequency-coupled feedback path.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: December 16, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Khaled A. Fayed
  • Electric power grid inspection and management system
    Patent number: 12494059
    Abstract: In some embodiments, the system is directed to an autonomous inspection system for electrical grid components. In some embodiments, the system collects electrical grid component data using an autonomous drone and then transmits the inspection data to one or more computers. In some embodiments, the system includes artificial intelligence that analysis the data and identifies electrical grid components defects and provides a model highlighting the defects to a user. In some embodiments, the system enables a user to train the artificial intelligence by providing feedback for models where defects or components are not properly identified.
    Type: Grant
    Filed: March 14, 2023
    Date of Patent: December 9, 2025
    Assignee: PACIFIC GAS AND ELECTRIC COMPANY
    Inventors: Kunal Datta, Tony Chen, Marcella Kwan, Patrick Buckles, Michael James Locatelli, Teresa Alapat, Maria Joseph, Michael S. Glass, Jonathan Mello, Khushar Faizan, Xiwang Li, Michael Signorotti, Guilherme Mattar Bastos, Jacinto Chen, Erin Melissa Tan Antono, David Grayson, Jeffrey Mark Lovington, Laura Fehr, Charlene Chi-Johnston
  • Stability techniques in power amplifiers under high voltage standing wave ratio conditions
    Patent number: 12483211
    Abstract: In some embodiments, stability in power amplifiers can be achieved under high voltage standing wave ratio conditions, with an amplifier circuit that includes an amplifier having a selected stage among a plurality of stages, and either or both of a first stabilizing circuit implemented on an input side of the selected stage to provide stability in operation of the amplifier under a high in-band voltage standing wave ratio condition, and a second stabilizing circuit implemented on an output side of the selected stage to provide stability in operation of the amplifier under a high out-of-band voltage standing wave ratio condition.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: November 25, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Khaled A. Fayed, Edward James Anthony, Srivatsan Jayaraman
  • RECONFIGURABLE OUTPUT BALUN FOR WIDEBAND PUSH-PULL POWER AMPLIFIERS
    Publication number: 20250274148
    Abstract: Reconfigurable output baluns for wideband push-pull amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver that generates 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 that selectively amplifies 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 impedance of the output balun.
    Type: Application
    Filed: April 30, 2025
    Publication date: August 28, 2025
    Inventors: Kunal Datta, Hemin Wu, Shanshan Zhao, Sheikh Nijam Ali, Jinghang Feng
  • Reconfigurable power amplifiers with controllable output capacitance
    Patent number: 12375046
    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 output capacitance of the pair of amplifiers.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: July 29, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Jinghang Feng, Srivatsan Jayaraman
  • Reconfigurable power amplifiers with controllable input capacitance
    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
  • Reconfigurable output balun for wideband push-pull power amplifiers
    Patent number: 12316355
    Abstract: Reconfigurable output baluns for wideband push-pull amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver that generates 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 that selectively amplifies 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 impedance of the output balun.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: May 27, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Hemin Wu, Shanshan Zhao, Sheikh Nijam Ali, Jinghang Feng
  • Wireless communication technology, apparatuses, and methods
    Patent number: 12237589
    Abstract: Millimeter wave (mmWave) technology, apparatuses, and methods that relate to transceivers, receivers, and antenna structures for wireless communications are described. The various aspects include co-located millimeter wave (mmWave) and near-field communication (NFC) antennas, scalable phased array radio transceiver architecture (SPARTA), phased array distributed communication system with MIMO support and phase noise synchronization over a single coax cable, communicating RF signals over cable (RFoC) in a distributed phased array communication system, clock noise leakage reduction, IF-to-RF companion chip for backwards and forwards compatibility and modularity, on-package matching networks, 5G scalable receiver (Rx) architecture, among others.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: February 25, 2025
    Assignee: Intel Corporation
    Inventors: Erkan Alpman, Arnaud Lucres Amadjikpe, Omer Asaf, Kameran Azadet, Rotem Banin, Miroslav Baryakh, Anat Bazov, Stefano Brenna, Bryan K. Casper, Anandaroop Chakrabarti, Gregory Chance, Debabani Choudhury, Emanuel Cohen, Claudio Da Silva, Sidharth Dalmia, Saeid Daneshgar Asl, Kaushik Dasgupta, Kunal Datta, Brandon Davis, Ofir Degani, Amr M. Fahim, Amit Freiman, Michael Genossar, Eran Gerson, Eyal Goldberger, Eshel Gordon, Meir Gordon, Josef Hagn, Shinwon Kang, Te Yu Kao, Noam Kogan, Mikko S. Komulainen, Igal Yehuda Kushnir, Saku Lahti, Mikko M. Lampinen, Naftali Landsberg, Wook Bong Lee, Run Levinger, Albert Molina, Resti Montoya Moreno, Tawfiq Musah, Nathan G. Narevsky, Hosein Nikopour, Oner Orhan, Georgios Palaskas, Stefano Pellerano, Ron Pongratz, Ashoke Ravi, Shmuel Ravid, Peter Andrew Sagazio, Eren Sasoglu, Lior Shakedd, Gadi Shor, Baljit Singh, Menashe Soffer, Ra'anan Sover, Shilpa Talwar, Nebil Tanzi, Moshe Teplitsky, Chintan S. Thakkar, Jayprakash Thakur, Avi Tsarfati, Yossi Tsfati, Marian Verhelst, Nir Weisman, Shuhei Yamada, Ana M. Yepes, Duncan Kitchin
  • WIRELESS COMMUNICATION TECHNOLOGY, APPARATUSES, AND METHODS
    Publication number: 20240243477
    Abstract: Millimeter wave (mmWave) technology, apparatuses, and methods that relate to transceivers, receivers, and antenna structures for wireless communications are described. The various aspects include co-located millimeter wave (mmWave) and near-field communication (NFC) antennas, scalable phased array radio transceiver architecture (SPARTA), phased array distributed communication system with MIMO support and phase noise synchronization over a single coax cable, communicating RF signals over cable (RFoC) in a distributed phased array communication system, clock noise leakage reduction, IF-to-RF companion chip for backwards and forwards compatibility and modularity, on-package matching networks, 5G scalable receiver (Rx) architecture, among others.
    Type: Application
    Filed: February 15, 2024
    Publication date: July 18, 2024
    Inventors: Erkan Alpman, Arnaud Lucres Amadjikpe, Omer Asaf, Kameran Azadet, Rotem Banin, Miroslav Baryakh, Anat Bazov, Stefano Brenna, Bryan K. Casper, Anandaroop Chakrabarti, Gregory Chance, Debabani Choudhury, Emanuel Cohen, Claudio Da Silva, Sidharth Dalmia, Saeid Daneshgar Asl, Kaushik Dasgupta, Kunal Datta, Ofir Degani, Amr M. Fahim, Amit Freiman, Michael Genossar, Eran Gerson, Eyal Goldberger, Eshel Gordon, Meir Gordon, Josef Hagn, Shinwon Kang, Te Yu Kao, Noam Kogan, Mikko S. Komulainen, Igal Yehuda Kushnir, Saku Lahti, Mikko M. Lampinen, Naftali Landsberg, Wook Bong Lee, Run Levinger, Albert Molina, Resti Montoya Moreno, Tawfiq Musah, Nathan G. Narevsky, Hosein Nikopour, Oner Orhan, Georgios Palaskas, Stefano Pellerano, Ron Pongratz, Ashoke Ravi, Shmuel Ravid, Peter Andrew Sagazio, Eren Sasoglu, Lior Shakedd, Gadi Shor, Baljit Singh, Menashe Soffer, Ra'anan Sover, Shilpa Talwar, Nebil Tanzi, Moshe Teplitsky, Chintan S. Thakkar, Jayprakash Thakur, Avi Tsarfati, Marian Verhelst, Yossi Tsfati, Nir Weisman, Shuhei Yamada, Ana M. Yepes, Duncan Kitchin
  • Wireless communication technology, apparatuses, and methods
    Patent number: 11955732
    Abstract: Millimeter wave (mmWave) technology, apparatuses, and methods that relate to transceivers, receivers, and antenna structures for wireless communications are described. The various aspects include co-located millimeter wave (mmWave) and near-field communication (NFC) antennas, scalable phased array radio transceiver architecture (SPARTA), phased array distributed communication system with MIMO support and phase noise synchronization over a single coax cable, communicating RF signals over cable (RFoC) in a distributed phased array communication system, clock noise leakage reduction, IF-to-RF companion chip for backwards and forwards compatibility and modularity, on-package matching networks, 5G scalable receiver (Rx) architecture, among others.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: April 9, 2024
    Assignee: Intel Corporation
    Inventors: Erkan Alpman, Arnaud Lucres Amadjikpe, Omer Asaf, Kameran Azadet, Rotem Banin, Miroslav Baryakh, Anat Bazov, Stefano Brenna, Bryan K. Casper, Anandaroop Chakrabarti, Gregory Chance, Debabani Choudhury, Emanuel Cohen, Claudio Da Silva, Sidharth Dalmia, Saeid Daneshgar Asl, Kaushik Dasgupta, Kunal Datta, Brandon Davis, Ofir Degani, Amr M. Fahim, Amit Freiman, Michael Genossar, Eran Gerson, Eyal Goldberger, Eshel Gordon, Meir Gordon, Josef Hagn, Shinwon Kang, Te Yu Kao, Noam Kogan, Mikko S. Komulainen, Igal Yehuda Kushnir, Saku Lahti, Mikko M. Lampinen, Naftali Landsberg, Wook Bong Lee, Run Levinger, Albert Molina, Resti Montoya Moreno, Tawfiq Musah, Nathan G. Narevsky, Hosein Nikopour, Oner Orhan, Georgios Palaskas, Stefano Pellerano, Ron Pongratz, Ashoke Ravi, Shmuel Ravid, Peter Andrew Sagazio, Eren Sasoglu, Lior Shakedd, Gadi Shor, Baljit Singh, Menashe Soffer, Ra'anan Sover, Shilpa Talwar, Nebil Tanzi, Moshe Teplitsky, Chintan S. Thakkar, Jayprakash Thakur, Avi Tsarfati, Yossi Tsfati, Marian Verhelst, Nir Weisman, Shuhei Yamada, Ana M. Yepes, Duncan Kitchin
  • APPARATUS AND METHODS FOR BIASING OF POWER AMPLIFIERS
    Publication number: 20240048101
    Abstract: Apparatus and methods for biasing power amplifiers are provided herein. In certain embodiments, a power amplifier includes a bipolar transistor having a base biased by a bias network having a reactance that controls an impedance at the transistor base to achieve substantially flat phase response over large dynamic power levels. For example, the bias network can have a frequency response, such as a high-pass or band-pass response, that reduces the impact of power level on phase distortion (AM/PM).
    Type: Application
    Filed: July 18, 2023
    Publication date: February 8, 2024
    Inventors: Kunal Datta, Khaled A. Fayed, Edward James Anthony, Srivatsan Jayaraman, Jinghang Feng
  • BALUN TRANSFORMER CIRCUIT FOR REDUCTION OF AN IMPEDANCE OF A DIFFERENTIAL POWER AMPLIFIER LOAD LINE
    Publication number: 20230402988
    Abstract: Apparatus and methods for balun transformer circuits within electronic devices are provided. In certain embodiments, balun transformer circuits are used for reduction of an impedance of a differential load line of a differential power amplifier.
    Type: Application
    Filed: June 9, 2023
    Publication date: December 14, 2023
    Inventors: Kunal Datta, Shihan Qin, Srivatsan Jayaraman
  • Signal combiner having a tuned termination circuit on an isolation port for a Doherty power amplifier
    Patent number: 11764734
    Abstract: The disclosure relates to a signal combiner for a Doherty power amplifier architecture, the signal combiner including a termination circuit on an isolation port, the termination circuit being tuned to improve performance of the Doherty power amplifier. The architecture includes a carrier amplifier and a peaking amplifier. The peaking amplifier modulates the load seen by the carrier amplifier, allowing the carrier amplifier to remain in high-efficiency, saturated operation even at back-off. This load modulation can be achieved using impedance matching networks having an impedance matched to a specific frequency. The architectures include tuned or tailored signal combiners with termination circuits on isolation ports. The termination circuits are tuned or tailored for particular operating frequencies to enhance operation.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: September 19, 2023
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Kunal Datta, Reza Kasnavi, Aleksey A. Lyalin
  • Apparatus and methods for biasing of power amplifiers
    Patent number: 11750151
    Abstract: Apparatus and methods for biasing power amplifiers are provided herein. In certain embodiments, a power amplifier includes a bipolar transistor having a base biased by a bias network having a reactance that controls an impedance at the transistor base to achieve substantially flat phase response over large dynamic power levels. For example, the bias network can have a frequency response, such as a high-pass or band-pass response, that reduces the impact of power level on phase distortion (AM/PM).
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: September 5, 2023
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Khaled A. Fayed, Edward James Anthony, Srivatsan Jayaraman, Jinghang Feng