Patents by Inventor Joshua Kawika Ellis
Joshua Kawika Ellis 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: 11909428Abstract: Aspects of this disclosure relate to a tunable filter with harmonic rejection. The tunable filter includes mutually coupled inductors and a tunable capacitance circuit electrically connected to at least one of the mutually coupled inductors. The tunable capacitance circuit includes N switches configured to adjust effective capacitance of the tunable capacitance circuit to tune harmonic rejection of the tunable filter for at least 2×2N harmonics. The tunable filter can filter a radio frequency signal. Related methods, radio frequency systems, radio frequency modules, and wireless communication devices are also disclosed.Type: GrantFiled: June 18, 2021Date of Patent: February 20, 2024Assignee: Skyworks Solutions, Inc.Inventors: Kun Chen, Joshua Kawika Ellis, Shayan Farahvash, Haibo Cao
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Radio frequency system with tunable filters including tunable filter with mutually coupled inductors
Patent number: 11824569Abstract: Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.Type: GrantFiled: August 24, 2021Date of Patent: November 21, 2023Assignee: Skyworks Solutions, Inc.Inventors: Fei Jia, Joshua Kawika Ellis, Kun Chen, Shayan Farahvash, Haisu Ju, Haibo Cao -
Publication number: 20230318646Abstract: Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.Type: ApplicationFiled: June 8, 2023Publication date: October 5, 2023Inventors: Fei Jia, Joshua Kawika Ellis, Kun Chen, Shayan Farahvash, Haisu Ju, Haibo Cao
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Radio frequency system with tunable filters including tunable filter with mutually coupled inductors
Patent number: 11722163Abstract: Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.Type: GrantFiled: August 24, 2021Date of Patent: August 8, 2023Assignee: Skyworks Solutions, Inc.Inventors: Fei Jia, Joshua Kawika Ellis, Kun Chen, Shayan Farahvash, Haisu Ju, Haibo Cao -
RADIO FREQUENCY SYSTEM WITH TUNABLE FILTERS INCLUDING TUNABLE FILTER WITH MUTUALLY COUPLED INDUCTORS
Publication number: 20220069854Abstract: Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.Type: ApplicationFiled: August 24, 2021Publication date: March 3, 2022Inventors: Fei Jia, Joshua Kawika Ellis, Kun Chen, Shayan Farahvash, Haisu Ju, Haibo Cao -
Publication number: 20220069786Abstract: Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter is coupled between an antenna switch and an antenna node. The second tunable filter has a notch at a lower frequency than a notch of the first tunable filter. Related methods and wireless communication devices are also disclosed.Type: ApplicationFiled: August 24, 2021Publication date: March 3, 2022Inventors: Fei Jia, Joshua Kawika Ellis, Kun Chen, Shayan Farahvash, Haisu Ju, Haibo Cao
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Publication number: 20210408992Abstract: Aspects of this disclosure relate to a tunable filter with tunable rejection. The tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The tunable impedance circuit is configured to adjust at least two notches in a frequency response of the tunable filter by changing a state of a switch. The tunable filter can filter a radio frequency signal. Related methods, radio frequency systems, radio frequency modules, and wireless communication devices are also disclosed.Type: ApplicationFiled: June 18, 2021Publication date: December 30, 2021Inventors: Kun Chen, Joshua Kawika Ellis, Shayan Farahvash, Haibo Cao
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Publication number: 20210409047Abstract: Aspects of this disclosure relate to a tunable filter with harmonic rejection. The tunable filter includes mutually coupled inductors and a tunable capacitance circuit electrically connected to at least one of the mutually coupled inductors. The tunable capacitance circuit includes N switches configured to adjust effective capacitance of the tunable capacitance circuit to tune harmonic rejection of the tunable filter for at least 2×2N harmonics. The tunable filter can filter a radio frequency signal. Related methods, radio frequency systems, radio frequency modules, and wireless communication devices are also disclosed.Type: ApplicationFiled: June 18, 2021Publication date: December 30, 2021Inventors: Kun Chen, Joshua Kawika Ellis, Shayan Farahvash, Haibo Cao
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Publication number: 20200007177Abstract: Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch and a tunable notch filter coupled to the common port. The impedance presented to the common port can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. According to embodiments of this disclosure, a shunt inductor in parallel with a tunable capacitance circuit can tune the impedance presented to the common port of the multi-throw switch. In certain embodiments, the tunable notch filter includes a series LC circuit in parallel with a tunable impedance circuit.Type: ApplicationFiled: June 14, 2019Publication date: January 2, 2020Inventors: David Steven Ripley, Edward F. Lawrence, Joshua Kawika Ellis
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Patent number: 10340963Abstract: Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch and a tunable notch filter coupled to the common port. The impedance presented to the common port can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. According to embodiments of this disclosure, a shunt inductor in parallel with a tunable capacitance circuit can tune the impedance presented to the common port of the multi-throw switch. In certain embodiments, the tunable notch filter includes a series LC circuit in parallel with a tunable impedance circuit.Type: GrantFiled: June 15, 2017Date of Patent: July 2, 2019Assignee: Skyworks Solutions, Inc.Inventors: David Steven Ripley, Edward F. Lawrence, Joshua Kawika Ellis
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Patent number: 9966982Abstract: Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch. The impedance can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. This can, for example, provide impedance matching for a duplexer port coupled to a throw of the multi-throw switch that is activated. According to embodiments of this disclosure, a shunt inductor in parallel with a tunable capacitance circuit can tune the impedance presented to the common port of the multi-throw switch. The shunt inductor and the tunable capacitance circuit can be coupled to a node in a signal path between an antenna switch and an antenna port in some embodiments.Type: GrantFiled: August 25, 2016Date of Patent: May 8, 2018Assignee: Skyworks Solutions, Inc.Inventors: David Steven Ripley, Joshua Kawika Ellis, Edward F. Lawrence
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Publication number: 20170346516Abstract: Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch and a tunable notch filter coupled to the common port. The impedance presented to the common port can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. According to embodiments of this disclosure, a shunt inductor in parallel with a tunable capacitance circuit can tune the impedance presented to the common port of the multi-throw switch. In certain embodiments, the tunable notch filter includes a series LC circuit in parallel with a tunable impedance circuit.Type: ApplicationFiled: June 15, 2017Publication date: November 30, 2017Inventors: David Steven Ripley, Edward F. Lawrence, Joshua Kawika Ellis
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Patent number: 9712196Abstract: Aspects of this disclosure relate to a tunable notch filter. In an embodiment, a tunable notch filter includes a series LC circuit in parallel with a tunable impedance circuit, and the tunable notch filter is in a radio frequency signal path associated with a common port of a multi-throw radio frequency switch. According to certain embodiments, the tunable notch filter can be in a radio frequency signal path between an antenna switch and an antenna port.Type: GrantFiled: August 25, 2016Date of Patent: July 18, 2017Assignee: Skyworks Solutions, Inc.Inventors: David Steven Ripley, Edward F. Lawrence, Joshua Kawika Ellis
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Patent number: 9712197Abstract: Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch and a tunable notch filter coupled to the common port. The impedance presented to the common port can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. According to embodiments of this disclosure, a shunt inductor in parallel with a tunable capacitance circuit can tune the impedance presented to the common port of the multi-throw switch. In certain embodiments, the tunable notch filter includes a series LC circuit in parallel with a tunable impedance circuit.Type: GrantFiled: August 25, 2016Date of Patent: July 18, 2017Assignee: Skyworks Solutions, Inc.Inventors: David Steven Ripley, Edward F. Lawrence, Joshua Kawika Ellis
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Publication number: 20170063413Abstract: Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch. The impedance can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. This can, for example, provide impedance matching for a duplexer port coupled to a throw of the multi-throw switch that is activated. According to embodiments of this disclosure, a shunt inductor in parallel with a tunable capacitance circuit can tune the impedance presented to the common port of the multi-throw switch. The shunt inductor and the tunable capacitance circuit can be coupled to a node in a signal path between an antenna switch and an antenna port in some embodiments.Type: ApplicationFiled: August 25, 2016Publication date: March 2, 2017Inventors: David Steven Ripley, Joshua Kawika Ellis, Edward F. Lawrence
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Publication number: 20170063411Abstract: Aspects of this disclosure relate to a tunable notch filter. In an embodiment, a tunable notch filter includes a series LC circuit in parallel with a tunable impedance circuit, and the tunable notch filter is in a radio frequency signal path associated with a common port of a multi-throw radio frequency switch. According to certain embodiments, the tunable notch filter can be in a radio frequency signal path between an antenna switch and an antenna port.Type: ApplicationFiled: August 25, 2016Publication date: March 2, 2017Inventors: David Steven Ripley, Edward F. Lawrence, Joshua Kawika Ellis
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Publication number: 20170063412Abstract: Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch and a tunable notch filter coupled to the common port. The impedance presented to the common port can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. According to embodiments of this disclosure, a shunt inductor in parallel with a tunable capacitance circuit can tune the impedance presented to the common port of the multi-throw switch. In certain embodiments, the tunable notch filter includes a series LC circuit in parallel with a tunable impedance circuit.Type: ApplicationFiled: August 25, 2016Publication date: March 2, 2017Inventors: David Steven Ripley, Edward F. Lawrence, Joshua Kawika Ellis