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公开(公告)号：US11637370B2
公开(公告)日：2023-04-25
申请号：US17312089
申请日：2019-12-02
发明人： Kenichi Kitoh , Takeshi Hara , Susumu Nakano , Yoshinori Tanaka , Ryan A. Stevenson , Steve Linn , Cagdas Varel , Colin Short , Felix Chen
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 provided between the TFT substrate and the slot substrate, a seal portion provided in the non-transmission and/or reception region and surrounding the liquid crystal layer, and a reflective conductive plate disposed opposing a second main surface of a second dielectric substrate with a dielectric layer interposed between the reflective conductive plate and the second main surface. The slot electrode includes an opening or a recessed portion formed in the non-transmission and/or reception region and in the region surrounded by the seal portion.
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公开(公告)号：US11909091B2
公开(公告)日：2024-02-20
申请号：US17323800
申请日：2021-05-18
申请人： Kymeta Corporation
发明人： Steven Howard Linn , Mehdi Afkhami Reihani , Stephen Olfert , Chris Eylander , Felix Chen , Corey Pfeiff , Jonathan Byron
CPC分类号： H01Q1/085 , H01Q1/42 , H01Q21/005
摘要： Expansion compensation structures for an antenna are disclosed. In one embodiment, the antenna comprises: an array of antenna elements; and a structure coupled to the array of antenna elements, the structure having a plurality of components comprising materials having different coefficients of thermal expansion (CTEs), wherein first and second components of the plurality of components are pin bonded with one or more pins, and one or more components of the plurality of components other than the first and second components are between the first and second components and have one or more slots through which the one or more pins traverse and have CTEs different than CTEs of the first and second components.
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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：US10886605B2
公开(公告)日：2021-01-05
申请号：US16430311
申请日：2019-06-03
申请人： Kymeta Corporation
发明人： Cagdas Varel , Steven Howard Linn , Felix Chen
摘要： An antenna apparatus 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, the first substrate comprising a plurality of irises and the second substrate comprises a plurality of patches, wherein each of the patches is co-located over and separated from an iris in the plurality of irises with LC at least partially between each overlap region a patch and iris overlap; and a reservoir structure between the first and second substrates to hold LC and comprising areas around the RF antenna elements, the reservoir structure having a cavity large enough to accommodate thermal expansion of the LC and having one or more areas void of LC, wherein LC remains in patch/iris overlap regions of the plurality of radiating RF antenna elements even when additional LC could enter the one or more areas void of LC.
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公开(公告)号：US20240258677A1
公开(公告)日：2024-08-01
申请号：US18433232
申请日：2024-02-05
申请人： Kymeta Corporation
发明人： Steven Howard Linn , Mehdi Afkhami Reihani , Stephen Olfert , Chris Eylander , Felix Chen , Corey Pfeiff , Jonathan Byron
CPC分类号： H01Q1/085 , H01Q1/42 , H01Q21/005
摘要： Expansion compensation structures for an antenna are disclosed. In one embodiment, the antenna comprises: an array of antenna elements; and a structure coupled to the array of antenna elements, the structure having a plurality of components comprising materials having different coefficients of thermal expansion (CTEs), wherein first and second components of the plurality of components are pin bonded with one or more pins, and one or more components of the plurality of components other than the first and second components are between the first and second components and have one or more slots through which the one or more pins traverse and have CTEs different than CTEs of the first and second components.
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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：US10727610B2
公开(公告)日：2020-07-28
申请号：US16043033
申请日：2018-07-23
申请人： Kymeta Corporation
发明人： Steven Howard Linn , Felix Chen
摘要： An apparatus for exchanging liquid crystal (LC) between two areas of an antenna array in an antenna and method for using the same are disclosed. In one embodiment, the antenna comprises a waveguide; an antenna element array having a plurality of radiating radio-frequency (RF) antenna elements, and a structure in an RF inactive area outside of, and at an outer periphery of, the antenna element array that is without a ground plane instantiating the waveguide. The structure collects LC from an area between substrates forming the RF antenna elements due to LC expansion and provides LC to the area between the substrates forming the RF antenna elements due to LC contraction.
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公开(公告)号：US20190036227A1
公开(公告)日：2019-01-31
申请号：US16043033
申请日：2018-07-23
申请人： Kymeta Corporation
发明人： Steven Howard Linn , Felix Chen
摘要： An apparatus for exchanging liquid crystal (LC) between two areas of an antenna array in an antenna and method for using the same are disclosed. In one embodiment, the antenna comprises a waveguide; 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, the portions of the first and second substrates adhered together, and a structure between the first and second substrates and in an RF inactive area outside of, and at an outer periphery of, the antenna element array that is without a ground plane instantiating the waveguide, the structure being operable to collect LC from an area between the first and second substrates forming the RF antenna elements due to LC expansion and to provide LC to the area between the first and second substrates forming the RF antenna elements due to LC contraction, the structure having a plurality of support spacers between the first and second substrates.
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公开(公告)号：US11848503B2
公开(公告)日：2023-12-19
申请号：US17312123
申请日：2019-12-02
发明人： Takeshi Hara , Yoshinori Tanaka , Susumu Nakano , Ryan A. Stevenson , Steve Linn , Cagdas Varel , Colin Short , Felix Chen
CPC分类号： H01Q3/30 , H01Q9/0407 , H01Q19/10
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 provided between the TFT substrate and the slot substrate, a seal portion provided in the non-transmission and/or reception region and surrounding the liquid crystal layer, a reflective conductive plate disposed opposing a second main surface of a second dielectric substrate with a dielectric layer interposed between the reflective conductive plate and the second main surface, a first spacer structure defining a first gap between a first dielectric substrate and the second dielectric substrate in the transmission and/or reception region, and a second spacer structure defining a second gap between the first dielectric substrate and the second dielectric substrate in the non-transmission and/or reception region, the second gap being wider than the first gap. The second spacer structure is disposed within the seal portion or within a region surrounded by the seal portion.
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公开(公告)号：US20210028552A1
公开(公告)日：2021-01-28
申请号：US16940027
申请日：2020-07-27
申请人： Kymeta Corporation
发明人： Steven Howard Linn , Felix Chen
摘要： An apparatus for exchanging liquid crystal (LC) between two areas of an antenna array in an antenna and method for using the same are disclosed. In one embodiment, the antenna comprises a waveguide; 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, the portions of the first and second substrates adhered together, and a structure between the first and second substrates and in an RF inactive area outside of, and at an outer periphery of, the antenna element array that is without a ground plane instantiating the waveguide, the structure being operable to collect LC from an area between the first and second substrates forming the RF antenna elements due to LC expansion and to provide LC to the area between the first and second substrates forming the RF antenna elements due to LC contraction, the structure having a plurality of support spacers between the first and second substrates.
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