Patents by Inventor Jeffrey Gordon Strahler
Jeffrey Gordon Strahler 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: 11973522Abstract: Aspects of this disclosure relate to a front end architecture for selectively adding an external carrier aggregation band. A switch element can connect a radio frequency signal path to an antenna path through a frequency domain multiplexer, such as a diplexer, in a first mode. The switch element can connect the radio frequency path to the antenna path and bypass the frequency domain multiplexer in a second mode. The frequency domain multiplexer can be external to a front end module that include the radio frequency signal path. In the first mode, a front end system can support carrier aggregation with a band associated with circuitry implemented external to the front end module.Type: GrantFiled: March 10, 2021Date of Patent: April 30, 2024Assignee: Skyworks Solutions, Inc.Inventors: Jen-Chien Chang, Reza Kasnavi, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, John G. Freed
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Patent number: 11949389Abstract: Aspects of this disclosure relate to a dual connectivity power amplifier system. The power amplifier system includes first and second power amplifiers that are concurrently active in a dual connectively mode. The first power amplifier is active in a different mode. A switch electrically connects the first power amplifier to different radio frequency signal paths in the dual connectivity mode and the different mode. Related methods, power amplifier modules, and wireless communication devices are disclosed.Type: GrantFiled: June 4, 2021Date of Patent: April 2, 2024Assignee: Skyworks Solutions, Inc.Inventors: Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler
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Patent number: 11942910Abstract: Apparatus and methods for adaptive power amplifier biasing are provided. In certain embodiments, a power amplifier system includes a power amplifier that provides amplification to a radio frequency (RF) signal, and a power amplifier bias control circuit that generates a bias signal of the power amplifier based on a bandwidth signal indicating a bandwidth of the RF signal. The power amplifier bias control circuit has a bandwidth that adapts to the bandwidth of the RF signal as indicated by the bandwidth signal.Type: GrantFiled: March 2, 2022Date of Patent: March 26, 2024Assignee: Skyworks Solutions, Inc.Inventors: Sabah Khesbak, Florinel G. Balteanu, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler
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Publication number: 20240080048Abstract: Configurable filters for asymmetrical radio frequency communication are disclosed. In one aspect, a radio frequency module includes a first filter configured to band-pass frequencies for a first transmit sub-band of a first communication band, a second filter configured to band-pass frequencies for a second transmit sub-band of the first communication band, and a third filter configured to band-pass frequencies for a receive band of the first communication band. The radio frequency module further includes an antenna terminal and at least one antenna switch module configured to connect the third filter and one of the first and second filters to the antenna terminal.Type: ApplicationFiled: August 31, 2023Publication date: March 7, 2024Inventors: Daniel Louis Longstreet, Jeffrey Gordon Strahler
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Publication number: 20230080564Abstract: A front-end module including a power amplifier, first and second couplers, an antenna switch, and a switch sub-assembly. The power amplifier has an input to receive a radio frequency signal and an output to provide an amplified radio frequency signal. The first coupler has an input port coupled to the output of the power amplifier, an output port coupled to an input of the antenna switch, a coupled port, and an isolated port. The second coupler has an input port coupled to an output of the antenna switch, an output port coupled to an antenna port, a coupled port, and an isolated port. The switch sub assembly connects one of the coupled port and the isolated port of the second coupler to an output of the switch assembly and the other one of the coupled port and the isolated port of the second coupler to a first termination impedance.Type: ApplicationFiled: September 13, 2022Publication date: March 16, 2023Inventors: David Richard Pehlke, Jeffrey Gordon Strahler, Roman Zbigniew Arkiszewski
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Publication number: 20230065303Abstract: Apparatus and methods for power amplifier envelope tracking systems with automatic control of a slew rate and a mode of an error amplifier of the envelope tracking system. The envelope tracker can include a signal bandwidth detection circuit that processes the envelope signal to generate a detected bandwidth signal, and a control circuit that controls the slew rate of the error amplifier based on the detected signal bandwidth.Type: ApplicationFiled: August 23, 2022Publication date: March 2, 2023Inventors: Sabah Khesbak, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, Florinel G. Balteanu
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Publication number: 20230065932Abstract: Apparatus and methods for power amplifier envelope tracking systems with automatic control of a slew rate and a mode of an error amplifier of the envelope tracking system. The envelope tracker can include a signal bandwidth detection circuit that processes the envelope signal to generate a detected bandwidth signal, and a control circuit that controls the slew rate of the error amplifier based on the detected signal bandwidth.Type: ApplicationFiled: August 23, 2022Publication date: March 2, 2023Inventors: Sabah Khesbak, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, Florinel G. Balteanu
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Publication number: 20230063006Abstract: Apparatus and methods for power amplifier envelope tracking systems with automatic control of a slew rate and a mode of an error amplifier of the envelope tracking system. The envelope tracker can include a signal bandwidth detection circuit that processes the envelope signal to generate a detected bandwidth signal, and a control circuit that controls the slew rate of the error amplifier based on the detected signal bandwidth.Type: ApplicationFiled: August 23, 2022Publication date: March 2, 2023Inventors: Sabah Khesbak, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, Florinel G. Balteanu
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Publication number: 20230020586Abstract: In some embodiments, a front-end system can include a switch network that includes an antenna node, a first signal node connectable to a first filter-based assembly for a first band, a second signal node connectable to a second filter-based assembly for a second band, and a third signal node connectable to a third filter-based assembly for a third band. The switch network can be configured to support carrier aggregation of at least the first and second bands. The front-end system can further include a reconfigurable routing circuit configured to allow carrier aggregation of the third band and a selected one of the first and second bands utilizing the third filter-based assembly and the filter-based assembly associated with the selected one of the first and second bands.Type: ApplicationFiled: June 28, 2022Publication date: January 19, 2023Inventors: Reza KASNAVI, Jianxing NI, Jeffrey Gordon STRAHLER, Yang HOU, Shao?Min HSU
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Publication number: 20220247370Abstract: Apparatus and methods for adaptive power amplifier biasing are provided. In certain embodiments, a power amplifier system includes a power amplifier that provides amplification to a radio frequency (RF) signal, and a power amplifier bias control circuit that generates a bias signal of the power amplifier based on a bandwidth signal indicating a bandwidth of the RF signal. The power amplifier bias control circuit has a bandwidth that adapts to the bandwidth of the RF signal as indicated by the bandwidth signal.Type: ApplicationFiled: March 2, 2022Publication date: August 4, 2022Inventors: Sabah Khesbak, Florinel G. Balteanu, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler
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Patent number: 11303255Abstract: Apparatus and methods for adaptive power amplifier biasing are provided. In certain embodiments, a power amplifier system includes a power amplifier that provides amplification to a radio frequency (RF) signal, and a power amplifier bias control circuit that generates a bias signal of the power amplifier based on a bandwidth signal indicating a bandwidth of the RF signal. The power amplifier bias control circuit has a bandwidth that adapts to the bandwidth of the RF signal as indicated by the bandwidth signal.Type: GrantFiled: July 17, 2020Date of Patent: April 12, 2022Assignee: Skyworks Solutions, Inc.Inventors: Sabah Khesbak, Florinel G. Balteanu, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler
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Publication number: 20210408985Abstract: Aspects of this disclosure relate to a multi-mode power amplifier system. A first power amplifier is configured to provide a radio frequency signal associated with a different radio access technology in a first mode than in a second mode. A second power amplifier is configured to be active in the first mode such that the first power amplifier and the second power amplifier are concurrently active in the first mode. A switch can electrically connect the output of the first power amplifier to different radio frequency signal path in the first mode than in the second mode. Related methods, power amplifier modules, and wireless communication devices are disclosed.Type: ApplicationFiled: June 4, 2021Publication date: December 30, 2021Inventors: Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler
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Publication number: 20210408984Abstract: Aspects of this disclosure relate to a dual connectivity power amplifier system. The power amplifier system includes first and second power amplifiers that are concurrently active in a dual connectively mode. The first power amplifier is active in a different mode. A switch electrically connects the first power amplifier to different radio frequency signal paths in the dual connectivity mode and the different mode. Related methods, power amplifier modules, and wireless communication devices are disclosed.Type: ApplicationFiled: June 4, 2021Publication date: December 30, 2021Inventors: Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler
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Publication number: 20210194511Abstract: Aspects of this disclosure relate to a front end architecture for selectively adding an external carrier aggregation band. A switch element can connect a radio frequency signal path to an antenna path through a frequency domain multiplexer, such as a diplexer, in a first mode. The switch element can connect the radio frequency path to the antenna path and bypass the frequency domain multiplexer in a second mode. The frequency domain multiplexer can be external to a front end module that include the radio frequency signal path. In the first mode, a front end system can support carrier aggregation with a band associated with circuitry implemented external to the front end module.Type: ApplicationFiled: March 10, 2021Publication date: June 24, 2021Inventors: Jen-Chien Chang, Reza Kasnavi, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, John G. Freed
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Patent number: 10979088Abstract: Aspects of this disclosure relate to a front end architecture for selectively adding an external carrier aggregation band. A switch element can connect a radio frequency signal path to an antenna path through a frequency domain multiplexer, such as a diplexer, in a first mode. The switch element can connect the radio frequency path to the antenna path and bypass the frequency domain multiplexer in a second mode. The frequency domain multiplexer can be external to a front end module that include the radio frequency signal path. In the first mode, a front end system can support carrier aggregation with a band associated with circuitry implemented external to the front end module.Type: GrantFiled: December 12, 2018Date of Patent: April 13, 2021Assignee: Skyworks Solutions, Inc.Inventors: Jen-Chien Chang, Reza Kasnavi, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, John G. Freed
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Publication number: 20210036669Abstract: Apparatus and methods for adaptive power amplifier biasing are provided. In certain embodiments, a power amplifier system includes a power amplifier that provides amplification to a radio frequency (RF) signal, and a power amplifier bias control circuit that generates a bias signal of the power amplifier based on a bandwidth signal indicating a bandwidth of the RF signal. The power amplifier bias control circuit has a bandwidth that adapts to the bandwidth of the RF signal as indicated by the bandwidth signal.Type: ApplicationFiled: July 17, 2020Publication date: February 4, 2021Inventors: Sabah Khesbak, Florinel G. Balteanu, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler
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Publication number: 20190190548Abstract: Aspects of this disclosure relate to a front end architecture for selectively adding an external carrier aggregation band. A switch element can connect a radio frequency signal path to an antenna path through a frequency domain multiplexer, such as a diplexer, in a first mode. The switch element can connect the radio frequency path to the antenna path and bypass the frequency domain multiplexer in a second mode. The frequency domain multiplexer can be external to a front end module that include the radio frequency signal path. In the first mode, a front end system can support carrier aggregation with a band associated with circuitry implemented external to the front end module.Type: ApplicationFiled: December 12, 2018Publication date: June 20, 2019Inventors: Jen-Chien Chang, Reza Kasnavi, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, John G. Freed
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Patent number: 10080192Abstract: Apparatus and methods for envelope tracking systems are disclosed herein. In certain implementations, an envelope tracking system for generating a power amplifier supply voltage for a power amplifier is provided. The envelope tracking system includes a DC-to-DC converter that generates a regulated voltage from a battery voltage and controls a voltage of the regulated voltage using a low frequency feedback signal. The envelope tracking system further includes an error amplifier that generates an output current using an envelope signal and a high frequency feedback signal. The low frequency feedback signal is based on a low frequency component of the power amplifier supply voltage and the high frequency feedback signal is based on a high frequency component of the power amplifier supply voltage. The error amplifier generates the power amplifier supply voltage by adjusting the magnitude of the regulated voltage using the output current.Type: GrantFiled: April 21, 2017Date of Patent: September 18, 2018Assignee: Skyworks Solutions, Inc.Inventors: Florinel G. Balteanu, David Steven Ripley, Sabah Khesbak, Jeffrey Gordon Strahler, Roman Zbigniew Arkiszewski, Yevgeniy A. Tkachenko
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Publication number: 20170223632Abstract: Apparatus and methods for envelope tracking systems are disclosed herein. In certain implementations, an envelope tracking system for generating a power amplifier supply voltage for a power amplifier is provided. The envelope tracking system includes a DC-to-DC converter that generates a regulated voltage from a battery voltage and controls a voltage of the regulated voltage using a low frequency feedback signal. The envelope tracking system further includes an error amplifier that generates an output current using an envelope signal and a high frequency feedback signal. The low frequency feedback signal is based on a low frequency component of the power amplifier supply voltage and the high frequency feedback signal is based on a high frequency component of the power amplifier supply voltage. The error amplifier generates the power amplifier supply voltage by adjusting the magnitude of the regulated voltage using the output current.Type: ApplicationFiled: April 21, 2017Publication date: August 3, 2017Inventors: Florinel G. Balteanu, David Steven Ripley, Sabah Khesbak, Jeffrey Gordon Strahler, Roman Zbigniew Arkiszewski, Yevgeniy A. Tkachenko
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Patent number: 9668215Abstract: Apparatus and methods for envelope tracking in a mobile device are disclosed herein. In certain configurations, a method includes amplifying a radio frequency (RF) input signal using a power amplifier, providing power to the power amplifier from a power amplifier supply voltage, controlling a voltage level of the power amplifier supply voltage based on a control voltage using a DC-to-DC converter, adjusting the voltage level of the power amplifier supply voltage based on an envelope of the RF input signal using an error amplifier, low pass filtering the power amplifier supply voltage to generate a filtered voltage using a low pass filter, and generating the control voltage based on comparing the filtered voltage to a reference voltage using a comparator.Type: GrantFiled: February 8, 2016Date of Patent: May 30, 2017Assignee: SKYWORKS SOLUTIONS, INC.Inventors: Florinel G. Balteanu, David Steven Ripley, Sabah Khesbak, Jeffrey Gordon Strahler, Roman Zbigniew Arkiszewski, Yevgeniy A. Tkachenko