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1
US11101775B2
Wideband tunable hybrid-based combiner for a Doherty power amplifier architecture
Publication/Patent Number: US11101775B2 Publication Date: 2021-08-24 Application Number: 16/513,630 Filing Date: 2019-07-16 Inventor: Datta, Kunal   Kasnavi, Reza   Lyalin, Aleksey A.   Assignee: SKYWORKS SOLUTIONS, INC.   IPC: H03F1/02 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.
2
US11070171B2
Apparatus and methods for biasing of power amplifiers
Publication/Patent Number: US11070171B2 Publication Date: 2021-07-20 Application Number: 16/738,654 Filing Date: 2020-01-09 Inventor: Datta, Kunal   Fayed, Khaled A.   Anthony, Edward James   Jayaraman, Srivatsan   Feng, Jinghang   Assignee: Skyworks Solutions, Inc.   IPC: H03F1/02 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).
3
US2021034027A1
ELECTRIC POWER GRID INSPECTION AND MANAGEMENT SYSTEM
Publication/Patent Number: US2021034027A1 Publication Date: 2021-02-04 Application Number: 16/942,060 Filing Date: 2020-07-29 Inventor: Datta, Kunal   Chen, Tony   Kwan, Marcella   Buckles, Patrick   Locatelli, Michael James   Alapat, Teresa   Joseph, Maria   Glass, Michael S.   Mello, Jonathan   Faizan, Khushar   Li, Xiwang   Assignee: PACIFIC GAS AND ELECTRIC COMPANY   IPC: G05B19/048 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.
4
US2020014338A1
WIDEBAND TUNABLE HYBRID-BASED COMBINER FOR A DOHERTY POWER AMPLIFIER ARCHITECTURE
Publication/Patent Number: US2020014338A1 Publication Date: 2020-01-09 Application Number: 16/513,630 Filing Date: 2019-07-16 Inventor: Datta, Kunal   Kasnavi, Reza   Lyalin, Aleksey A.   Assignee: SKYWORKS SOLUTIONS, INC.   IPC: H03F1/02 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.
5
US202014338A1
WIDEBAND TUNABLE HYBRID-BASED COMBINER FOR A DOHERTY POWER AMPLIFIER ARCHITECTURE
Publication/Patent Number: US202014338A1 Publication Date: 2020-01-09 Application Number: 20/191,651 Filing Date: 2019-07-16 Inventor: Kasnavi, Reza   Datta, Kunal   Lyalin, Aleksey A.   Assignee: Skyworks Solutions, Inc.   IPC: H03F1/02 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.
6
US2020228064A1
APPARATUS AND METHODS FOR BIASING OF POWER AMPLIFIERS
Publication/Patent Number: US2020228064A1 Publication Date: 2020-07-16 Application Number: 16/738,654 Filing Date: 2020-01-09 Inventor: Datta, Kunal   Fayed, Khaled A.   Anthony, Edward James   Jayaraman, Srivatsan   Feng, Jinghang   Assignee: Skyworks Solutions, Inc.   IPC: H03F1/02 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).
7
US2020091608A1
WIRELESS COMMUNICATION TECHNOLOGY, APPARATUSES, AND METHODS
Publication/Patent Number: US2020091608A1 Publication Date: 2020-03-19 Application Number: 16/472,830 Filing Date: 2017-12-20 Inventor: Alpman, Erkan   Amadjikpe, Arnaud Lucres   Asaf, Omer   Azadet, Kameran   Banin, Rotem   Baryakh, Miroslav   Bazov, Anat   Brenna, Stefano   Casper, Bryan K.   Chakrabarti, Anandaroop   Chance, Gregory   Choudhury, Debabani   Cohen, Emanuel   Da, Silva Claudio   Dalmia, Sidharth   Daneshgar, Asl Saeid   Dasgupta, Kaushik   Datta, Kunal   Davis, Brandon   Degani, Ofir   Fahim, Amr M.   Freiman, Amit   Genossar, Michael   Gerson, Eran   Goldberger, Eyal   Gordon, Eshel   Gordon, Meir   Hagn, Josef   Kang, Shinwon   Kao, Te Yu   Kogan, Noam   Komulainen, Mikko S.   Kushnir, Igal Yehuda   Lahti, Saku   Lampinen, Mikko M.   Landsberg, Naftali   Lee, Wook Bong   Levinger, Run   Molina, Albert   Montoya, Moreno Resti   Musah, Tawfiq   Narevsky, Nathan G.   Nikopour, Hosein   Orhan, Oner   Palaskas, Georgios   Pellerano, Stefano   Pongratz, Ron   Ravi, Ashoke   Ravid, Shmuel   Sagazio, Peter Andrew   Sasoglu, Eren   Shakedd, Lior   Shor, Gadi   Singh, Baljit   Soffer, Menashe   Sover, Ra'anan   Talwar, Shilpa   Tanzi, Nebil   Teplitsky, Moshe   Thakkar, Chintan S.   Thakur, Jayprakash   Tsarfati, Avi   Tsfati, Yossi   Verhelst, Marian   Weisman, Nir   Yamada, Shuhei   Yepes, Ana M.   Kitchin, Duncan   Assignee: Intel Corporation   IPC: H01Q9/04 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.