Patents by Inventor Hassan SARBISHAEI
Hassan SARBISHAEI 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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Publication number: 20240113735Abstract: 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: ApplicationFiled: September 20, 2023Publication date: April 4, 2024Inventors: John Jackson Nisbet, Hassan Sarbishaei, Guillaume Alexandre Blin
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Patent number: 11923808Abstract: Low noise amplifiers (LNAs) with low noise figure are provided. In certain embodiments, an LNA includes a single-ended LNA stage including an input for receiving a single-ended input signal from an antenna and an output for providing a single-ended amplified signal, a balun for converting the single-ended amplified signal to a differential signal, and a variable gain differential amplification stage for amplifying the differential signal from the balun. Implementing the LNA in this manner provides low noise figure, high gain, flexibility in controlling gain, and less sensitivity to ground/supply impedance.Type: GrantFiled: January 23, 2023Date of Patent: March 5, 2024Assignee: Skyworks Solutions, Inc.Inventors: Sanjeev Jain, Haoran Yu, Nan Sen Lin, Gregory Edward Babcock, Kai Jiang, Hassan Sarbishaei
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Patent number: 11811438Abstract: 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: GrantFiled: August 19, 2021Date of Patent: November 7, 2023Assignee: Skyworks Solutions, Inc.Inventors: John Jackson Nisbet, Hassan Sarbishaei, Guillaume Alexandre Blin
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Patent number: 11791800Abstract: Apparatus and methods for phase shifting are provided herein. In certain embodiments, a phase shifter includes a first port, a first controllable reflective load, a second port, a second controllable reflective load, and a pair of coupled lines that are electromagnetically coupled to one another. The pair of coupled lines includes a first conductive line between the first port and the first controllable reflective load and a second conductive line between the second controllable reflective load and the second port. At least one of the first controllable reflective load or the second controllable reflective load includes a switched transmission line load.Type: GrantFiled: November 16, 2021Date of Patent: October 17, 2023Assignee: Skyworks Solutions, Inc.Inventors: Mostafa Azizi, Hassan Sarbishaei
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Patent number: 11664767Abstract: Doherty power amplifiers with coupled line combiners are provided herein. In certain embodiments, a power amplifier system includes a carrier amplifier having a carrier output that provides a first radio frequency signal, a peaking amplifier having a peaking output that provides a second radio frequency signal, and a coupled line combiner including a first conductor line connected to the peaking output, a second conductor line electromagnetically coupled to the first conductor line, a third conductor line connected to the carrier output, and a fourth conductor line electromagnetically coupled to the third conductor line and in series with the second conductor line. The power amplifier system further includes an inductor in series with the fourth conductor line and the second conductor line and operable to provide a radio frequency output signal to an output terminal.Type: GrantFiled: June 21, 2022Date of Patent: May 30, 2023Assignee: Skyworks Solutions, Inc.Inventors: Brendan J. Korba, John William Mitchell Rogers, Hassan Sarbishaei
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Publication number: 20230112435Abstract: A fully differential power amplifier has an input matching network, a plurality of stacked transistors connected by a plurality of inter stack networks (ISNs), and an output matching network for amplification and conditioning of signal components. The differential amplifier uses a modified cascode FET topology with the FETs connected by gate decoupling capacitors to strongly attenuate common mode oscillations and eliminate the need for a source degeneration inductor or matching transformer. Inter stack networks provide signal conditioning and filtering between amplification stages to improve amplifier performance metrics such as long-term reliability, output power, and efficiency.Type: ApplicationFiled: October 12, 2022Publication date: April 13, 2023Inventors: Mehdi Naseri Ali Abadi, Hassan Sarbishaei, Mostafa Azizi
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Publication number: 20230095653Abstract: Low noise amplifiers (LNAs) are disclosed herein. In certain embodiments, an LNA includes an input balun configured to convert a single-ended radio frequency (RF) receive signal to a differential RF receive signal, an amplifier chain configured to amplify the differential RF receive signal to generate a differential amplified RF receive signal, and an output balun configured to convert the differential amplified RF receive signal into a single-ended amplified RF receive signal. The LNA's amplifier chain is operable in multiple gain modes, and includes a first differential amplification stage, a second differential amplification stage, and a third differential amplification stage.Type: ApplicationFiled: July 28, 2022Publication date: March 30, 2023Inventors: Sanjeev Jain, Haoran Yu, Nan Sen Lin, Hassan Sarbishaei
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Patent number: 11614760Abstract: A front-end module comprises a low-dropout (LDO) voltage regulator, a reference current generator, and a power amplifier. The LDO voltage regulator, reference current generator, and power amplifier are integrated on a first semiconductor die.Type: GrantFiled: February 10, 2022Date of Patent: March 28, 2023Assignee: Skyworks Solutions, Inc.Inventors: Bang Li Liang, Yasser Khairat Soliman, Adrian John Bergsma, Haoran Yu, Hassan Sarbishaei
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Patent number: 11595008Abstract: Low noise amplifiers (LNAs) with low noise figure are provided. In certain embodiments, an LNA includes a single-ended LNA stage including an input for receiving a single-ended input signal from an antenna and an output for providing a single-ended amplified signal, a balun for converting the single-ended amplified signal to a differential signal, and a variable gain differential amplification stage for amplifying the differential signal from the balun. Implementing the LNA in this manner provides low noise figure, high gain, flexibility in controlling gain, and less sensitivity to ground/supply impedance.Type: GrantFiled: December 29, 2020Date of Patent: February 28, 2023Assignee: Skyworks Solutions, Inc.Inventors: Sanjeev Jain, Haoran Yu, Nan Sen Lin, Gregory Edward Babcock, Kai Jiang, Hassan Sarbishaei
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Publication number: 20220329210Abstract: Doherty power amplifiers with coupled line combiners are provided herein. In certain embodiments, a power amplifier system includes a carrier amplifier having a carrier output that provides a first radio frequency signal, a peaking amplifier having a peaking output that provides a second radio frequency signal, and a coupled line combiner including a first conductor line connected to the peaking output, a second conductor line electromagnetically coupled to the first conductor line, a third conductor line connected to the carrier output, and a fourth conductor line electromagnetically coupled to the third conductor line and in series with the second conductor line. The power amplifier system further includes an inductor in series with the fourth conductor line and the second conductor line and operable to provide a radio frequency output signal to an output terminal.Type: ApplicationFiled: June 21, 2022Publication date: October 13, 2022Inventors: Brendan J. Korba, John William Mitchell Rogers, Hassan Sarbishaei
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Publication number: 20220253081Abstract: A front-end module comprises a low-dropout (LDO) voltage regulator, a reference current generator, and a power amplifier. The LDO voltage regulator, reference current generator, and power amplifier are integrated on a first semiconductor die.Type: ApplicationFiled: February 10, 2022Publication date: August 11, 2022Inventors: Bang Li Liang, Yasser Khairat Soliman, Adrian John Bergsma, Haoran Yu, Hassan Sarbishaei
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Patent number: 11398798Abstract: Doherty power amplifiers with coupled line combiners are provided herein. In certain embodiments, a power amplifier system includes a carrier amplifier having a carrier output that provides a first radio frequency signal, a peaking amplifier having a peaking output that provides a second radio frequency signal, and a coupled line combiner that combines the first radio frequency signal and the second radio frequency signal to generate a radio frequency output signal at an output terminal. The coupled line combiner includes a first conductor line connected between the peaking output and a reference voltage, a second conductor line electromagnetically coupled to the first conductor line, a third conductor line connected between the carrier output and the reference voltage, and a fourth conductor line electromagnetically coupled to the third conductor line and connected between the output terminal and the second conductor line.Type: GrantFiled: February 26, 2021Date of Patent: July 26, 2022Assignee: Skyworks Solutions, Inc.Inventors: Brendan J. Korba, John William Mitchell Rogers, Hassan Sarbishaei
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Publication number: 20220200560Abstract: Apparatus and methods for phase shifters with switched transmission line loads are provided herein. In certain embodiments, a phase shifter includes a first port, a first controllable reflective load, a second port, a second controllable reflective load, and a pair of coupled lines that are electromagnetically coupled to one another. The pair of coupled lines includes a first conductive line between the first port and the first controllable reflective load and a second conductive line between the second controllable reflective load and the second port. At least one of the first controllable reflective load or the second controllable reflective load includes a switched transmission line load.Type: ApplicationFiled: November 16, 2021Publication date: June 23, 2022Inventors: Mostafa Azizi, Hassan Sarbishaei
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Publication number: 20220200577Abstract: Apparatus and methods for phase shifting are provided herein. In certain embodiments, a phase shifter includes a first port, a first controllable reflective load, a second port, a second controllable reflective load, and a pair of coupled lines that are electromagnetically coupled to one another. The pair of coupled lines includes a first conductive line between the first port and the first controllable reflective load and a second conductive line between the second controllable reflective load and the second port. At least one of the first controllable reflective load or the second controllable reflective load includes a switched transmission line load.Type: ApplicationFiled: November 16, 2021Publication date: June 23, 2022Inventors: Mostafa Azizi, Hassan Sarbishaei
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Publication number: 20220190803Abstract: Baluns with integrated matching networks are provided herein. In certain embodiments, a balun structure includes a first pair of coupled lines, a second pair of coupled lines and a transmission line. Additionally, a first port of the balun is connected to a reference voltage by way of a first line of the first pair of coupled lines, the transmission line, and a first line of the second pair of coupled lines. Furthermore, a second port of the balun is connected to the reference voltage by way of a second line of the first pair of coupled lines, while a third port of the balun is connected to the reference voltage by way of a second line of the second pair of coupled lines. The first port serves as an unbalanced signal terminal, while the second port and the third port serve as positive and negative signal terminals.Type: ApplicationFiled: November 16, 2021Publication date: June 16, 2022Inventors: Mostafa Azizi, Mehdi Naseri Ali Abadi, Hassan Sarbishaei
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Patent number: 11281247Abstract: A front-end module comprises a low-dropout (LDO) voltage regulator, a reference current generator, a power amplifier, and a voltage reference configured to provide a reference voltage to the LDO voltage regulator and the reference current generator. The LDO voltage regulator, reference current generator, power amplifier, and voltage reference are integrated on a first semiconductor die.Type: GrantFiled: February 26, 2020Date of Patent: March 22, 2022Assignee: Skyworks Solutions, Inc.Inventors: Bang Li Liang, Yasser Khairat Soliman, Adrian John Bergsma, Haoran Yu, Hassan Sarbishaei
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Publication number: 20220060202Abstract: 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: ApplicationFiled: August 19, 2021Publication date: February 24, 2022Inventors: John Jackson Nisbet, Hassan Sarbishaei, Guillaume Alexandre Blin
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Publication number: 20210273612Abstract: Doherty power amplifiers with coupled line combiners are provided herein. In certain embodiments, a power amplifier system includes a carrier amplifier having a carrier output that provides a first radio frequency signal, a peaking amplifier having a peaking output that provides a second radio frequency signal, and a coupled line combiner that combines the first radio frequency signal and the second radio frequency signal to generate a radio frequency output signal at an output terminal. The coupled line combiner includes a first conductor line connected between the peaking output and a reference voltage, a second conductor line electromagnetically coupled to the first conductor line, a third conductor line connected between the carrier output and the reference voltage, and a fourth conductor line electromagnetically coupled to the third conductor line and connected between the output terminal and the second conductor line.Type: ApplicationFiled: February 26, 2021Publication date: September 2, 2021Inventors: Brendan J. Korba, John William Mitchell Rogers, Hassan Sarbishaei
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Publication number: 20210218373Abstract: Low noise amplifiers (LNAs) with low noise figure are provided. In certain embodiments, an LNA includes a single-ended LNA stage including an input for receiving a single-ended input signal from an antenna and an output for providing a single-ended amplified signal, a balun for converting the single-ended amplified signal to a differential signal, and a variable gain differential amplification stage for amplifying the differential signal from the balun. Implementing the LNA in this manner provides low noise figure, high gain, flexibility in controlling gain, and less sensitivity to ground/supply impedance.Type: ApplicationFiled: December 29, 2020Publication date: July 15, 2021Inventors: Sanjeev Jain, Haoran Yu, Nan Sen Lin, Gregory Edward Babcock, Kai Jiang, Hassan Sarbishaei
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Publication number: 20200272182Abstract: A front-end module comprises a low-dropout (LDO) voltage regulator, a reference current generator, a power amplifier, and a voltage reference configured to provide a reference voltage to the LDO voltage regulator and the reference current generator. The LDO voltage regulator, reference current generator, power amplifier, and voltage reference are integrated on a first semiconductor die.Type: ApplicationFiled: February 26, 2020Publication date: August 27, 2020Inventors: Bang Li Liang, Yasser Khairat Soliman, Adrian John Bergsma, Haoran Yu, Hassan Sarbishaei