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).

  • SIGNAL COMBINER HAVING A TUNED TERMINATION CIRCUIT ON AN ISOLATION PORT FOR A DOHERTY POWER AMPLIFIER
    Publication number: 20210384868
    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: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Inventors: Kunal DATTA, Reza KASNAVI, Aleksey A. LYALIN
  • Wideband tunable hybrid-based combiner for a Doherty power amplifier architecture
    Patent number: 11101775
    Abstract: The disclosure relates to a wideband, tunable hybrid-based combiner for a Doherty power amplifier architecture. The architecture includes two parallel power amplifiers: 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. Typically, a multi-mode/multi-band power amplifier module that does not include a tunable impedance circuit as disclosed herein, several Doherty power amplifier modules (each of which uses two amplifiers) would be used to cover several bands, which may make implementation costly and/or impractical. Thus, the architectures described herein provide wideband amplification using a Doherty amplifier configuration.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 24, 2021
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Kunal Datta, Reza Kasnavi, Aleksey A. Lyalin
  • Apparatus and methods for biasing of power amplifiers
    Patent number: 11070171
    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: January 9, 2020
    Date of Patent: July 20, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Khaled A. Fayed, Edward James Anthony, Srivatsan Jayaraman, Jinghang Feng
  • ELECTRIC POWER GRID INSPECTION AND MANAGEMENT SYSTEM
    Publication number: 20210034027
    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: Application
    Filed: July 29, 2020
    Publication date: February 4, 2021
    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
  • APPARATUS AND METHODS FOR BIASING OF POWER AMPLIFIERS
    Publication number: 20200228064
    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: January 9, 2020
    Publication date: July 16, 2020
    Inventors: Kunal Datta, Khaled A. Fayed, Edward James Anthony, Srivatsan Jayaraman, Jinghang Feng
  • WIRELESS COMMUNICATION TECHNOLOGY, APPARATUSES, AND METHODS
    Publication number: 20200091608
    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: December 20, 2017
    Publication date: March 19, 2020
    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
  • WIDEBAND TUNABLE HYBRID-BASED COMBINER FOR A DOHERTY POWER AMPLIFIER ARCHITECTURE
    Publication number: 20200014338
    Abstract: The disclosure relates to a wideband, tunable hybrid-based combiner for a Doherty power amplifier architecture. The architecture includes two parallel power amplifiers: 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. Typically, a multi-mode/multi-band power amplifier module that does not include a tunable impedance circuit as disclosed herein, several Doherty power amplifier modules (each of which uses two amplifiers) would be used to cover several bands, which may make implementation costly and/or impractical. Thus, the architectures described herein provide wideband amplification using a Doherty amplifier configuration.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 9, 2020
    Inventors: Kunal DATTA, Reza KASNAVI, Aleksey A. LYALIN
  • Doherty power amplifier combiner with tunable impedance termination circuit
    Patent number: 10355647
    Abstract: Doherty power amplifier combiner with tunable impedance termination circuit. A signal combiner can include a balun transformer circuit having a first coil and a second coil. The first coil can be implemented between a first port and a second port. The second coil can be implemented between a third port and a fourth port. The first port and the third port can be coupled by a first capacitor. The second port and fourth port can be coupled by a second capacitor. The first port can be configured to receive a first signal. The fourth port can be configured to receive a second signal. The second port can be configured to yield a combination of the first signal and the second signal. The signal combiner can include a termination circuit that couples the third port to a ground. The termination circuit can include a tunable impedance circuit.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 16, 2019
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Kunal Datta, Reza Kasnavi, Aleksey A. Lyalin
  • DOHERTY POWER AMPLIFIER COMBINER WITH TUNABLE IMPEDANCE TERMINATION CIRCUIT
    Publication number: 20180145636
    Abstract: Doherty power amplifier combiner with tunable impedance termination circuit. A signal combiner can include a balun transformer circuit having a first coil and a second coil. The first coil can be implemented between a first port and a second port. The second coil can be implemented between a third port and a fourth port. The first port and the third port can be coupled by a first capacitor. The second port and fourth port can be coupled by a second capacitor. The first port can be configured to receive a first signal. The fourth port can be configured to receive a second signal. The second port can be configured to yield a combination of the first signal and the second signal. The signal combiner can include a termination circuit that couples the third port to a ground. The termination circuit can include a tunable impedance circuit.
    Type: Application
    Filed: October 24, 2017
    Publication date: May 24, 2018
    Inventors: Kunal DATTA, Reza KASNAVI, Aleksey A. LYALIN
  • Doherty power amplifier combiner with tunable impedance termination circuit
    Patent number: 9800207
    Abstract: Doherty power amplifier combiner with tunable impedance termination circuit. A signal combiner can include a balun transformer circuit having a first coil and a second coil. The first coil can be implemented between a first port and a second port. The second coil can be implemented between a third port and a fourth port. The first port and the third port can be coupled by a first capacitor. The second port and fourth port can be coupled by a second capacitor. The first port can be configured to receive a first signal. The fourth port can be configured to receive a second signal. The second port can be configured to yield a combination of the first signal and the second signal. The signal combiner can include a termination circuit that couples the third port to a ground. The termination circuit can include a tunable impedance circuit.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 24, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Reza Kasnavi, Aleksey A. Lyalin
  • Doherty power amplifier with tunable input network
    Patent number: 9712119
    Abstract: Doherty power amplifier with tunable input network. An input network for a Doherty power amplifier can include a splitter circuit configured to receive a radio-frequency (RF) signal and split the RF signal into a first portion along a first path to a carrier amplifier of the Doherty power amplifier and a second portion along a second path to a peaking amplifier of the Doherty power amplifier. The input network can further include a tunable input circuit implemented along either or both of the first path and second path. The tunable input circuit can be configured to provide control of the amplitude and phase of either or both of the first portion and second portion.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: July 18, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Reza Kasnavi, Aleksey A. Lyalin, Ying Shi
  • DOHERTY POWER AMPLIFIER WITH TUNABLE INPUT NETWORK
    Publication number: 20160118944
    Abstract: Doherty power amplifier with tunable input network. An input network for a Doherty power amplifier can include a splitter circuit configured to receive a radio-frequency (RF) signal and split the RF signal into a first portion along a first path to a carrier amplifier of the Doherty power amplifier and a second portion along a second path to a peaking amplifier of the Doherty power amplifier. The input network can further include a tunable input circuit implemented along either or both of the first path and second path. The tunable input circuit can be configured to provide control of the amplitude and phase of either or both of the first portion and second portion.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 28, 2016
    Inventors: Kunal DATTA, Reza KASNAVI, Aleksey A. LYALIN, Ying SHI
  • DOHERTY POWER AMPLIFIER COMBINER WITH TUNABLE IMPEDANCE TERMINATION CIRCUIT
    Publication number: 20160049910
    Abstract: Doherty power amplifier combiner with tunable impedance termination circuit. A signal combiner can include a balun transformer circuit having a first coil and a second coil. The first coil can be implemented between a first port and a second port. The second coil can be implemented between a third port and a fourth port. The first port and the third port can be coupled by a first capacitor. The second port and fourth port can be coupled by a second capacitor. The first port can be configured to receive a first signal. The fourth port can be configured to receive a second signal. The second port can be configured to yield a combination of the first signal and the second signal. The signal combiner can include a termination circuit that couples the third port to a ground. The termination circuit can include a tunable impedance circuit.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 18, 2016
    Inventors: Kunal DATTA, Reza KASNAVI, Aleksey A. LYALIN