Patents by Inventor Oleksiy Klimashov
Oleksiy Klimashov 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).
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Patent number: 10205426Abstract: A linearization circuit reduces intermodulation distortion in an amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the amplifier.Type: GrantFiled: August 17, 2017Date of Patent: February 12, 2019Assignee: Skyworks Solutions, Inc.Inventors: Yu Zhu, Dylan Charles Bartle, Oleksiy Klimashov, Paul T. DiCarlo
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Patent number: 10164582Abstract: A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.Type: GrantFiled: November 20, 2017Date of Patent: December 25, 2018Assignee: Skyworks Solutions, Inc.Inventors: Yu Zhu, Boshi Jin, Steven Christopher Sprinkle, Florinel G. Balteanu, Oleksiy Klimashov, Dylan Charles Bartle, Paul T. DiCarlo
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Publication number: 20180331657Abstract: Aspects of this disclosure relate to a radio frequency system that includes an envelope generator configured to generate an envelope signal corresponding to an envelope of a radio frequency signal and at least two radio frequency components coupled to the envelope generator. One of the radio frequency components is a radio frequency switch configured to pass the radio frequency signal. The radio frequency switch is configured to receive the envelope signal to cause intermodulation distortion associated with the radio frequency switch to be reduced.Type: ApplicationFiled: April 9, 2018Publication date: November 15, 2018Inventors: Yu Zhu, Oleksiy Klimashov, Hailing Wang, Dylan Charles Bartle, Paul T. DiCarlo
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Publication number: 20180323778Abstract: In semiconductor switches, the isolation can be limited by the capacitive coupling between the switch input and the switch output. Ultra-high isolation can be achieved by adding a coupled transmission line to the semiconductor switch. The coupled transmission line introduces inductive coupling, which cancels at least a part of the capacitive coupling between the switch input and the switch output.Type: ApplicationFiled: May 3, 2018Publication date: November 8, 2018Inventors: Yu Zhu, Oleksiy Klimashov, Dylan Charles Bartle
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Patent number: 10103693Abstract: Envelope tracking can be employed to reduce power consumption of a power amplifier, but envelope tracking can introduce nonlinearities to a power amplifier. These nonlinearities can manifest themselves as noise at the output of the power amplifier. Embodiments described herein provide techniques for characterizing a parameter indicative of power amplifier noise when envelope tracking is employed. Measurement of this parameter can permit power amplifier designers to decide whether to forgo envelope tracking if a power amplifier is too susceptible to such noise, redesign the power amplifier to improve compatibility with envelope tracking, or to employ distortion compensation circuitry to reduce the noise output by the power amplifier. Counterintuitively, this distortion compensation circuitry may involve increasing the power, such as the envelope tracking power supply. However, increasing the power may be a desirable trade-off for increased linearity.Type: GrantFiled: September 28, 2016Date of Patent: October 16, 2018Assignee: SKYWORKS SOLUTIONS, INC.Inventors: Yu Zhu, Oleksiy Klimashov, Dylan C. Bartle, Paul T. DiCarlo
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Publication number: 20180183431Abstract: Disclosed herein are systems and methods for reducing intermodulation distortion (IMD) in switches using parallel distorter circuits. A switch circuit can include having a switch arm and a distorter arm that is configured to act as a compensation circuit to compensate for non-linearities in the switch arm. The switch circuit can include a plurality of FETs in the switch arm configured to provide switching functionality. The distorter arm is configured to compensate for a non-linearity effect generated by the FETs of the switch arm when it is in an ON state. The distorter arm is configured to compensate for the non-linearity effect generated by the switch arm independent of the frequency of the signal received by the switch arm. Various configurations of switch arms and distorter arms can be implemented to reduce harmonic distortion as well as intermodulation distortion.Type: ApplicationFiled: December 22, 2017Publication date: June 28, 2018Inventors: Yu Zhu, Hanching Fuh, Oleksiy Klimashov, Dylan Charles Bartle, Paul T. DiCarlo
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Publication number: 20180167037Abstract: A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.Type: ApplicationFiled: November 20, 2017Publication date: June 14, 2018Inventors: Yu Zhu, Boshi Jin, Steven Christopher Sprinkle, Florinel G. Balteanu, Oleksiy Klimashov, Dylan Charles Bartle, Paul T. DiCarlo
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Patent number: 9991885Abstract: Semiconductor switches in portable transceivers switch between outgoing and incoming radio frequency signal paths. The isolation can be limited by the capacitive coupling between the switch input and the switch output. Ultra-high isolation can be achieved by adding a coupled transmission line to the semiconductor switch. The coupled transmission line introduces inductive coupling, which cancels at least a part of the capacitive coupling between the switch input and the switch output.Type: GrantFiled: May 3, 2017Date of Patent: June 5, 2018Assignee: Skyworks Solutions, Inc.Inventors: Yu Zhu, Oleksiy Klimashov, Dylan Charles Bartle
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Patent number: 9973148Abstract: Aspects of this disclosure relate to a radio frequency system that includes an envelope generator configured to generate an envelope signal corresponding to an envelope of a radio frequency signal and at least two radio frequency components coupled to the envelope generator. One of the radio frequency components is a radio frequency switch configured to pass the radio frequency signal. The radio frequency switch is configured to receive the envelope signal to cause intermodulation distortion associated with the radio frequency switch to be reduced.Type: GrantFiled: August 7, 2017Date of Patent: May 15, 2018Assignee: Skyworks Solutions, Inc.Inventors: Yu Zhu, Oleksiy Klimashov, Hailing Wang, Dylan Charles Bartle, Paul T. DiCarlo
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Publication number: 20180069511Abstract: A linearization circuit reduces intermodulation distortion in an amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the amplifier.Type: ApplicationFiled: August 17, 2017Publication date: March 8, 2018Inventors: Yu Zhu, Dylan Charles Bartle, Oleksiy Klimashov, Paul T. DiCarlo
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Patent number: 9893682Abstract: A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.Type: GrantFiled: June 24, 2016Date of Patent: February 13, 2018Assignee: Skyworks Solutions, Inc.Inventors: Yu Zhu, Boshi Jin, Steven Christopher Sprinkle, Florinel G. Balteanu, Oleksiy Klimashov, Dylan Charles Bartle, Paul T. DiCarlo
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Publication number: 20180041170Abstract: Aspects of this disclosure relate to a radio frequency system that includes an envelope generator configured to generate an envelope signal corresponding to an envelope of a radio frequency signal and at least two radio frequency components coupled to the envelope generator. One of the radio frequency components is a radio frequency switch configured to pass the radio frequency signal. The radio frequency switch is configured to receive the envelope signal to cause intermodulation distortion associated with the radio frequency switch to be reduced.Type: ApplicationFiled: August 7, 2017Publication date: February 8, 2018Inventors: Yu Zhu, Oleksiy Klimashov, Hailing Wang, Dylan Charles Bartle, Paul T. DiCarlo
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Publication number: 20180041204Abstract: Aspects of this disclosure relate to a switching circuit with enhanced linearity. The switching circuit can include a switch and an envelope generator. The switch can receive an input signal, provide an output signal, and receive an envelope signal corresponding to an envelope of the input signal. The envelope generator can generate the envelope signal so as to cause intermodulation distortion in the output signal to be reduced to cause linearity of the switch to be improved.Type: ApplicationFiled: August 7, 2017Publication date: February 8, 2018Inventors: Yu Zhu, Oleksiy Klimashov, Hailing Wang, Dylan Charles Bartle, Paul T. DiCarlo
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Patent number: 9813029Abstract: A linearization circuit reduces intermodulation distortion in a differential amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the differential amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the differential amplifier.Type: GrantFiled: June 24, 2016Date of Patent: November 7, 2017Assignee: Skyworks Solutions, Inc.Inventors: Yu Zhu, Dylan Charles Bartle, Oleksiy Klimashov, Paul T. DiCarlo
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Publication number: 20170237425Abstract: Semiconductor switches in portable transceivers switch between outgoing and incoming radio frequency signal paths. The isolation can be limited by the capacitive coupling between the switch input and the switch output. Ultra-high isolation can be achieved by adding a coupled transmission line to the semiconductor switch. The coupled transmission line introduces inductive coupling, which cancels at least a part of the capacitive coupling between the switch input and the switch output.Type: ApplicationFiled: May 3, 2017Publication date: August 17, 2017Inventors: Yu Zhu, Oleksiy Klimashov, Dylan Charles Bartle
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Patent number: 9674006Abstract: In semiconductor switches, the isolation can be limited by the capacitive coupling between the switch input and the switch output. Ultra-high isolation can be achieved by adding a coupled transmission line to the semiconductor switch. The coupled transmission line introduces inductive coupling, which cancels at least a part of the capacitive coupling between the switch input and the switch output.Type: GrantFiled: April 23, 2015Date of Patent: June 6, 2017Assignee: Skyworks Solutions, Inc.Inventors: Yu Zhu, Oleksiy Klimashov, Dylan Charles Bartle
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Publication number: 20170005625Abstract: A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.Type: ApplicationFiled: June 24, 2016Publication date: January 5, 2017Inventors: Yu Zhu, Boshi Jin, Steven Christopher Sprinkle, Florinel G. Balteanu, Oleksiy Klimashov, Dylan Charles Bartle, Paul T. DiCarlo
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Publication number: 20170005624Abstract: A linearization circuit reduces intermodulation distortion in a parallel amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the parallel amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the parallel amplifier.Type: ApplicationFiled: June 24, 2016Publication date: January 5, 2017Inventors: Yu Zhu, Dylan Charles Bartle, Oleksiy Klimashov, Paul T. DiCarlo
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Publication number: 20170005626Abstract: A linearization circuit reduces intermodulation distortion in a cascade amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the cascade amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the cascade amplifier.Type: ApplicationFiled: June 24, 2016Publication date: January 5, 2017Inventors: Yu Zhu, Dylan Charles Bartle, Oleksiy Klimashov, Paul T. DiCarlo
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Publication number: 20170005623Abstract: A linearization circuit reduces intermodulation distortion in a differential amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the differential amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the differential amplifier.Type: ApplicationFiled: June 24, 2016Publication date: January 5, 2017Inventors: Yu Zhu, Dylan Charles Bartle, Oleksiy Klimashov, Paul T. DiCarlo