Patents by Inventor Mikal Askarian Amiri
Mikal Askarian Amiri 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: 11962101Abstract: An electronic device may be provided with a phased antenna array that radiates at a frequency greater than 10 GHz. The array may include a dielectric resonator antenna having a dielectric column with non-planar sidewalls that include planar portions and corrugated portions with grooves and ridges, that include sidewall steps, and/or that include angled sidewall portions. The dielectric resonator antenna may include a first dielectric column and a second dielectric column stacked on the first dielectric column. The second column may be narrower and may have a higher dielectric constant than the first column or may have the same width but a lower dielectric constant than the first column. This may serve to broaden the bandwidth of the dielectric resonator antenna relative to scenarios where the dielectric resonator antenna includes only a single dielectric resonating element having only planar sidewalls.Type: GrantFiled: April 29, 2022Date of Patent: April 16, 2024Assignee: Apple Inc.Inventors: Panagiotis Theofanopoulos, Subramanian Ramalingam, Harish Rajagopalan, Bilgehan Avser, David Garrido Lopez, Forhad Hasnat, Mikal Askarian Amiri, Rodney A Gomez Angulo
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Patent number: 11831090Abstract: An electronic device may include a conductive housing with a rear wall and a sidewall. A display may be mounted to the sidewall and may include a conductive display structure separated from the sidewall by a slot. An antenna arm may be interposed between the conductive display structure and the rear wall. A first inductor may couple the conductive display structure to the housing and may compensate for a distributed capacitance between the antenna arm and the conductive display structure. A second inductor may couple the antenna arm to the rear wall and may compensate for a distributed capacitance between the antenna arm and the rear wall. A speaker may be co-located with the antenna. A third inductor may couple the antenna arm to the rear wall to allow antenna currents to bypass the speaker.Type: GrantFiled: June 16, 2020Date of Patent: November 28, 2023Assignee: Apple Inc.Inventors: Forhad Hasnat, David Garrido Lopez, Harish Rajagopalan, Mikal Askarian Amiri, Rodney A. Gomez Angulo, Lu Zhang
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Publication number: 20230261695Abstract: An electronic device may be provided with an antenna module having a substrate. A phased antenna array of dielectric resonator antennas and a radio-frequency integrated circuit for the array may be mounted to one or more surfaces of the substrate. The dielectric resonator antennas may include dielectric columns excited by feed probes. The feed probes may be printed onto sidewalls of the dielectric columns or may be pressed against the sidewalls by biasing structures. A plastic substrate may be molded over each dielectric column and each of the feed probes in the array. The feed probes may cover multiple polarizations. The array may include elements for covering multiple frequency bands. The dielectric columns may be aligned a longitudinal axis and may be rotated at a non-zero and non-perpendicular angle with respect to the longitudinal axis.Type: ApplicationFiled: April 24, 2023Publication date: August 17, 2023Inventors: Harish Rajagopalan, Bilgehan Avser, David Garrido Lopez, Forhad Hasnat, Mattia Pascolini, Mikal Askarian Amiri, Rodney A. Gomez Angulo, Thomas W. Yang, Jiechen Wu, Eric N. Nyland, Simone Paulotto, Jennifer M. Edwards, Matthew D. Hill, Ihtesham H. Chowdhury, David A. Hurrell, Siwen Yong, Jiangfeng Wu, Daniel C. Wagman, Soroush Akbarzadeh, Robert Scritzky, Subramanian Ramalingam
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Patent number: 11700035Abstract: An electronic device may be provided with an antenna module having a substrate. A phased antenna array of dielectric resonator antennas and a radio-frequency integrated circuit for the array may be mounted to one or more surfaces of the substrate. The dielectric resonator antennas may include dielectric columns excited by feed probes. The feed probes may be printed onto sidewalls of the dielectric columns or may be pressed against the sidewalls by biasing structures. A plastic substrate may be molded over each dielectric column and each of the feed probes in the array. The feed probes may cover multiple polarizations. The array may include elements for covering multiple frequency bands. The dielectric columns may be aligned a longitudinal axis and may be rotated at a non-zero and non-perpendicular angle with respect to the longitudinal axis.Type: GrantFiled: July 2, 2020Date of Patent: July 11, 2023Assignee: Apple Inc.Inventors: Harish Rajagopalan, Bilgehan Avser, David Garrido Lopez, Forhad Hasnat, Mattia Pascolini, Mikal Askarian Amiri, Rodney A. Gomez Angulo, Thomas W. Yang, Jiechen Wu, Eric N. Nyland, Simone Paulotto, Jennifer M. Edwards, Matthew D. Hill, Ihtesham H. Chowdhury, David A. Hurrell, Siwen Yong, Jiangfeng Wu, Daniel C. Wagman, Soroush Akbarzadeh, Robert Scritzky, Subramanian Ramalingam
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Publication number: 20230090668Abstract: An electronic device may be provided with a phased antenna array that radiates at a frequency greater than 10 GHz. The array may include a dielectric resonator antenna having a dielectric column with non-planar sidewalls that include planar portions and corrugated portions with grooves and ridges, that include sidewall steps, and/or that include angled sidewall portions. The dielectric resonator antenna may include a first dielectric column and a second dielectric column stacked on the first dielectric column. The second column may be narrower and may have a higher dielectric constant than the first column or may have the same width but a lower dielectric constant than the first column. This may serve to broaden the bandwidth of the dielectric resonator antenna relative to scenarios where the dielectric resonator antenna includes only a single dielectric resonating element having only planar sidewalls.Type: ApplicationFiled: April 29, 2022Publication date: March 23, 2023Inventors: Panagiotis Theofanopoulos, Subramanian Ramalingam, Harish Rajagopalan, Bilgehan Avser, David Garrido Lopez, Forhad Hasnat, Mikal Askarian Amiri, Rodney A Gomez Angulo
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Patent number: 11575209Abstract: An electronic device may have a first conductive sidewall at an upper end, a second conductive sidewall at a lower end, and a conductive rear wall. First and second antennas may be formed at the upper end and may include slots with edges defined by the first sidewall and the rear wall. Third, fourth, fifth, and sixth antennas may be formed at the lower end and may include slots with edges defined by the second sidewall and the rear wall. Each antenna may cover multiple frequency bands. First order and third order modes of the slots may contribute to the frequency responses of the third through sixth antennas. A display controller may be mounted at the lower end and may impose a lower limit on the frequencies covered by the third through sixth antennas. The first and second antennas may cover lower frequencies than the third through sixth antennas.Type: GrantFiled: June 18, 2020Date of Patent: February 7, 2023Assignee: Apple Inc.Inventors: David Garrido Lopez, Aobo Li, Forhad Hasnat, Harish Rajagopalan, Mikal Askarian Amiri, Rodney A. Gomez Angulo
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Publication number: 20220006486Abstract: An electronic device may be provided with an antenna module having a substrate. A phased antenna array of dielectric resonator antennas and a radio-frequency integrated circuit for the array may be mounted to one or more surfaces of the substrate. The dielectric resonator antennas may include dielectric columns excited by feed probes. The feed probes may be printed onto sidewalls of the dielectric columns or may be pressed against the sidewalls by biasing structures. A plastic substrate may be molded over each dielectric column and each of the feed probes in the array. The feed probes may cover multiple polarizations. The array may include elements for covering multiple frequency bands. The dielectric columns may be aligned a longitudinal axis and may be rotated at a non-zero and non-perpendicular angle with respect to the longitudinal axis.Type: ApplicationFiled: July 2, 2020Publication date: January 6, 2022Inventors: Harish Rajagopalan, Bilgehan Avser, David Garrido Lopez, Forhad Hasnat, Mattia Pascolini, Mikal Askarian Amiri, Rodney A. Gomez Angulo, Thomas W. Yang, Jiechen Wu, Eric N. Nyland, Simone Paulotto, Jennifer M. Edwards, Matthew D. Hill, Ihtesham H. Chowdhury, David A. Hurrell, Siwen Yong, Jiangfeng Wu, Daniel C. Wagman, Soroush Akbarzadeh, Robert Scritzky, Subramanian Ramalingam
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Publication number: 20210399429Abstract: An electronic device may have a first conductive sidewall at an upper end, a second conductive sidewall at a lower end, and a conductive rear wall. First and second antennas may be formed at the upper end and may include slots with edges defined by the first sidewall and the rear wall. Third, fourth, fifth, and sixth antennas may be formed at the lower end and may include slots with edges defined by the second sidewall and the rear wall. Each antenna may cover multiple frequency bands. First order and third order modes of the slots may contribute to the frequency responses of the third through sixth antennas. A display controller may be mounted at the lower end and may impose a lower limit on the frequencies covered by the third through sixth antennas. The first and second antennas may cover lower frequencies than the third through sixth antennas.Type: ApplicationFiled: June 18, 2020Publication date: December 23, 2021Inventors: David Garrido Lopez, Aobo Li, Forhad Hasnat, Harish Rajagopalan, Mikal Askarian Amiri, Rodney A. Gomez Angulo
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Publication number: 20210391651Abstract: An electronic device may include a conductive housing with a rear wall and a sidewall. A display may be mounted to the sidewall and may include a conductive display structure separated from the sidewall by a slot. An antenna arm may be interposed between the conductive display structure and the rear wall. A first inductor may couple the conductive display structure to the housing and may compensate for a distributed capacitance between the antenna arm and the conductive display structure. A second inductor may couple the antenna arm to the rear wall and may compensate for a distributed capacitance between the antenna arm and the rear wall. A speaker may be co-located with the antenna. A third inductor may couple the antenna arm to the rear wall to allow antenna currents to bypass the speaker.Type: ApplicationFiled: June 16, 2020Publication date: December 16, 2021Inventors: Forhad Hasnat, David Garrido Lopez, Harish Rajagopalan, Mikal Askarian Amiri, Rodney A. Gomez Angulo, Lu Zhang
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Patent number: 10819029Abstract: An electronic device may be provided with control circuitry and doublets of first and second antennas that are used to determine the position and orientation of the device relative to external wireless equipment. The control circuitry may determine the relative position and orientation of the external equipment by measuring the angle of arrival of radio-frequency signals from the external equipment. Each doublet may include first and second cavity-backed slot antennas. The first and second antennas may each include a first slot element that is directly fed and a second slot element that is parasitically fed by the first slot element. The first slot element may radiate in an ultra-wideband communications band at 8.0 GHz and the second slot element may radiate in an ultra-wideband communications band at 6.5 GHz. The doublet may be aligned with a dielectric window in a conductive sidewall for the device.Type: GrantFiled: February 8, 2019Date of Patent: October 27, 2020Assignee: Apple Inc.Inventors: Mikal Askarian Amiri, Carlo di Nallo, David Garrido Lopez, Harish Rajagopalan, Nikolaj P. Kammersgaard, Rodney A. Gomez Angulo, Umar Azad
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Publication number: 20200259258Abstract: An electronic device may be provided with control circuitry and doublets of first and second antennas that are used to determine the position and orientation of the device relative to external wireless equipment. The control circuitry may determine the relative position and orientation of the external equipment by measuring the angle of arrival of radio-frequency signals from the external equipment. Each doublet may include first and second cavity-backed slot antennas. The first and second antennas may each include a first slot element that is directly fed and a second slot element that is parasitically fed by the first slot element. The first slot element may radiate in an ultra-wideband communications band at 8.0 GHz and the second slot element may radiate in an ultra-wideband communications band at 6.5 GHz. The doublet may be aligned with a dielectric window in a conductive sidewall for the device.Type: ApplicationFiled: February 8, 2019Publication date: August 13, 2020Inventors: Mikal Askarian Amiri, Carlo di Nallo, David Garrido Lopez, Harish Rajagopalan, Nikolaj P. Kammersgaard, Rodney A. Gomez Angulo, Umar Azad
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Patent number: 10714823Abstract: Antenna structure with a curvilinear radiating element and a circularly symmetric high impedance surface ground plane. The curvilinear radiating element has a first diameter in a plane of the curvilinear radiating element and the circularly symmetric high impedance surface ground plane has a second diameter in a plane of the circularly symmetric high impedance surface ground plane. The curvilinear radiating element is positioned proximate the circularly symmetric high impedance surface ground plane with the plane of the curvilinear radiating element parallel to the plane of the circularly symmetric high impedance surface ground plane. A surface of the curvilinear radiating element is separated from a surface of the circularly symmetric high impedance surface ground plane by a distance.Type: GrantFiled: January 26, 2018Date of Patent: July 14, 2020Assignee: Arizona Board of Regents on behalf of Arizona State UniversityInventors: Constantine A. Balanis, Mikal Askarian Amiri, Craig R. Birtcher
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Publication number: 20180212318Abstract: Antenna structure with a curvilinear radiating element and a circularly symmetric high impedance surface ground plane. The curvilinear radiating element has a first diameter in a plane of the curvilinear radiating element and the circularly symmetric high impedance surface ground plane has a second diameter in a plane of the circularly symmetric high impedance surface ground plane. The curvilinear radiating element is positioned proximate the circularly symmetric high impedance surface ground plane with the plane of the curvilinear radiating element parallel to the plane of the circularly symmetric high impedance surface ground plane. A surface of the curvilinear radiating element is separated from a surface of the circularly symmetric high impedance surface ground plane by a distance.Type: ApplicationFiled: January 26, 2018Publication date: July 26, 2018Inventors: Constantine A. Balanis, Mikal Askarian Amiri, Craig R. Birtcher