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公开(公告)号：US11978955B2
公开(公告)日：2024-05-07
申请号：US17956547
申请日：2022-09-29
申请人： Kymeta Corporation
发明人： Ryan A. Stevenson , Mohsen Sazegar , Cagdas Varel , Seyed Mohamad Amin Momeni Hasan Abadi , Steven Howard Linn , Hussein Esfahlani , Witold Teller
CPC分类号： H01Q15/0033 , H01Q3/34 , H01Q5/314 , H01Q9/14 , H01Q13/103 , H01Q13/18 , H01Q13/206 , H01Q15/0086 , H01Q21/08
摘要： A unit cell can be used for a metasurface, metamaterial, or beamforming antenna. The unit cell includes a metal layer attached to a substrate. The metal layer defines an iris opening for the unit cell. One or more tunable capacitance devices are positioned within or across the iris opening. Each tunable capacitance device is to tune resonance frequency of the unit cell. Mass transfer technologies or self-assembly processes may be used to position the tunable capacitance devices.
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公开(公告)号：US11715871B2
公开(公告)日：2023-08-01
申请号：US17121452
申请日：2020-12-14
申请人： Kymeta Corporation
发明人： Cagdas Varel , Steven Howard Linn
CPC分类号： H01Q1/02 , H05B3/262 , H05B2203/007 , H05B2203/016
摘要： An antenna has radio-frequency (RF) antenna elements and two substrates. A heater structure is connected to at least one of the two substrates, for heating the RF antenna elements. In one embodiment, the antenna comprises: a physical antenna aperture having an array of radio frequency (RF) antenna elements formed with patch and iris substrates, the iris substrate having a plurality of layers including an iris metal layer; and a heater structure coupled to one or more of the plurality of layers of the iris substrate for heating the RF antenna elements.
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公开(公告)号：US20230127172A1
公开(公告)日：2023-04-27
申请号：US17956547
申请日：2022-09-29
申请人： Kymeta Corporation
发明人： Ryan A. Stevenson , Mohsen Sazegar , Cagdas Varel , Seyed Mohamad Amin Momeni Hasan Abadi , Hussein Esfahlani , Witold Teller
摘要： A unit cell can be used for a metasurface, metamaterial, or beamforming antenna. The unit cell includes a metal layer attached to a substrate. The metal layer defines an iris opening for the unit cell. One or more tunable capacitance devices are positioned within or across the iris opening. Each tunable capacitance device is to tune resonance frequency of the unit cell. Mass transfer technologies or self-assembly processes may be used to position the tunable capacitance devices.
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公开(公告)号：US20220278449A1
公开(公告)日：2022-09-01
申请号：US17681375
申请日：2022-02-25
申请人： Kymeta Corporation
发明人： Mohsen Sazegar , Hussein Esfahlani , Cagdas Varel , Seyed Mohamad Amin Momeni Hasan Abadi , Tung Pham , Ryan Stevenson , Witold Teller , Mohammad Ranjbarnikkhah , Paul Klassen
摘要： Antennas with integrated varactor circuits are described. The antenna may comprise metasurface antennas. In some embodiments, an antenna comprises an array of antenna elements, wherein each antenna element comprises a iris and a varactor diode integrated on an integrated circuit (IC) chip coupled across a portion of the iris. The antenna can also comprise a plurality of transistors, each transistor coupled to a distinct one of the varactor diodes in the array of antenna elements to provide a tuning voltage to the one varactor diode.
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公开(公告)号：US11228097B2
公开(公告)日：2022-01-18
申请号：US16005242
申请日：2018-06-11
申请人： Kymeta Corporation
发明人： Steven Howard Linn , Cagdas Varel , Felix Chen
摘要： An apparatus for exchanging liquid crystal (LC) between two areas of an antenna array and method for using the same are disclosed. In one embodiment, the antenna comprises an antenna element array having a plurality of radiating radio-frequency (RF) antenna elements formed using portions of first and second substrates with a liquid crystal (LC) therebetween, and a structure between the first and second substrates and outside the area of the RF antenna elements to collect LC from an area between the first and second substrates forming the RF antenna elements due to LC expansion.
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公开(公告)号：US20190089305A1
公开(公告)日：2019-03-21
申请号：US16134221
申请日：2018-09-18
申请人： Kymeta Corporation
发明人： Steven Linn , Cagdas Varel
摘要： A method and apparatus for DC offset correction in an antenna aperture are described. In one embodiment, the antenna comprises: an array of antenna elements having liquid crystal (LC); drive circuitry coupled to the array and having a plurality of drivers, each driver of the plurality of drivers coupled to an antenna element of the array and operable to apply a drive voltage to the antenna element; and voltage correction logic coupled to the drive circuitry adjust drive voltages to compensate for an offset between a first magnitude of a first voltage applied to the LC of each antenna element during a first interval of drive polarity and a second magnitude of a second voltage applied to the LC of said each antenna element during a second interval of drive polarity opposite the drive polarity of the first interval.
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公开(公告)号：US20180182556A1
公开(公告)日：2018-06-28
申请号：US15849483
申请日：2017-12-20
申请人： Kymeta Corporation
发明人： Steven Linn , Cagdas Varel
CPC分类号： H01G4/30 , H01G4/35 , H01Q1/44 , H01Q1/48 , H01Q9/0407 , H01Q13/103 , H01Q21/064 , H04B1/40
摘要： A storage capacitor and method for using the same in an antenna aperture are described. In one embodiment, an antenna comprises a physical antenna aperture having first and second substrates forming an array of radio-frequency (RF) radiating antenna elements that are controlled and operable together to form a beam for the frequency band for use in holographic beam steering, wherein each of the antenna elements is coupled to a circuit to supply a voltage to the said each antenna element and a storage capacitor formed with a plurality of conductive layers (e.g., metal layers) on a first substrate, wherein top and bottom conductive layers of the plurality of conductive layers are at a first voltage that is equal to a second voltage on a conductive layer (e.g., a metal layer) of the second substrate to reduce parasitic capacitance produced between the storage capacitor and the conductive layer on the second substrate.
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公开(公告)号：US11978958B2
公开(公告)日：2024-05-07
申请号：US17889096
申请日：2022-08-16
申请人： Kymeta Corporation
发明人： Hussein Esfahlani , Cagdas Varel , Mohsen Sazegar , Steven Howard Linn , Ryan Stevenson , Mohammad Ranjbarnikkhah , Seyed Mohamad Amin Momeni Hasan Abadi
CPC分类号： H01Q15/0086 , G01J1/42 , G01R29/0885 , G01R31/2632
摘要： Methods and apparatuses for performing optical inspection of varactor diodes in an antenna are disclosed. In some embodiments, the method of testing an antenna having varactor diodes comprises: selecting a plurality of varactor diodes to be placed in a light emitting state; forward biasing the selected varactor diodes to a magnitude at which the selected varactor diodes are to emit light; and detecting one or more faulty varactor diodes of the selected varactor diodes based on their emitted light intensity.
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公开(公告)号：US11616305B2
公开(公告)日：2023-03-28
申请号：US17312090
申请日：2019-12-02
发明人： Takeshi Hara , Susumu Nakano , Koji Yasuda , Yoji Taniguchi , Yoshinori Tanaka , Ryan A. Stevenson , Steve Linn , Cagdas Varel , Colin Short , Felix Chen
IPC分类号： H01Q1/22 , H01Q13/22 , G02F1/1339 , H01Q3/34 , H01Q21/00
摘要： A scanning antenna includes a transmission and/or reception region including a plurality of antenna units and a non-transmission and/or reception region other than the transmission and/or reception region. The scanning antenna includes a TFT substrate, a slot substrate, a liquid crystal layer, a seal portion surrounding the liquid crystal layer, a wall structure (additional seal portion) disposed in a region surrounded by the seal portion in the non-transmission and/or reception region, a reflective conductive plate, a first spacer structure defining a first gap between a first dielectric substrate and a second dielectric substrate in the transmission and/or reception region, and a second spacer structure disposed in the wall structure and defining a second gap wider than the first gap. The wall structure includes a first main side face and a second main side face that intersect a surface of the first dielectric substrate, and at least one of the first main side face and the second main side face includes a plurality of recessed portions and/or a plurality of protruding portions when viewed from a normal direction of the first dielectric substrate.
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公开(公告)号：US11217890B2
公开(公告)日：2022-01-04
申请号：US16134221
申请日：2018-09-18
申请人： Kymeta Corporation
发明人： Steven Linn , Cagdas Varel
IPC分类号： H01Q1/38 , H01Q3/24 , H01Q3/28 , H01Q3/36 , G01R29/10 , H01Q17/00 , H01Q3/00 , H01Q3/34 , H01Q13/10 , H01Q21/00 , H01Q21/06 , H03D3/00 , G01R29/08 , G01R31/28
摘要： A method and apparatus for DC offset correction in an antenna aperture are described. In one embodiment, the antenna comprises: an array of antenna elements having liquid crystal (LC); drive circuitry coupled to the array and having a plurality of drivers, each driver of the plurality of drivers coupled to an antenna element of the array and operable to apply a drive voltage to the antenna element; and voltage correction logic coupled to the drive circuitry adjust drive voltages to compensate for an offset between a first magnitude of a first voltage applied to the LC of each antenna element during a first interval of drive polarity and a second magnitude of a second voltage applied to the LC of said each antenna element during a second interval of drive polarity opposite the drive polarity of the first interval.
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