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公开(公告)号：US20230057627A1
公开(公告)日：2023-02-23
申请号：US17886719
申请日：2022-08-12
IPC分类号： H01P1/387 , G01R33/032
摘要： A differential circulator comprises first and second magnets, a ground plane, a first three-port junction conductor disposed between the first magnet and the ground plane, and a second three-port junction conductor disposed between the second magnet and the ground plane. The first three-port junction conductor and the second three-port junction conductor are in the same magnetic circuit including the first and second magnets to provide substantially same pass characteristics to radio frequency signals passing through the first three-port junction conductor and the second three-port junction conductor.
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2.发明公开公开(公告)号：US20240124361A1
公开(公告)日：2024-04-18
申请号：US18394922
申请日：2023-12-22
发明人： Michael David Hill , David Bowie Cruickshank , David Martin Firor , Iain Alexander Macfarlane , Jeffrey Alan Shunkwiler , John Jianzhong Jiang
IPC分类号： C04B35/465 , B32B18/00 , C04B35/26 , C04B35/64 , C04B37/00 , C04B41/00 , H01P1/387 , H01P11/00
CPC分类号： C04B35/465 , B32B18/00 , C04B35/265 , C04B35/2658 , C04B35/64 , C04B37/00 , C04B37/001 , C04B41/0072 , H01P1/387 , H01P11/00 , C04B35/443 , C04B2235/656 , C04B2235/763 , C04B2235/77 , C04B2235/94 , C04B2237/84
摘要： The disclosed technology generally relates dielectric materials and methods of forming the same, and more particularly to a combination of co-fireable dielectric materials that can be attached to each other without the use of adhesives. In an aspect, a composite article comprises a magnetic portion comprising a nickel zinc ferrite. The composite article additionally comprises a non-magnetic portion contacting the magnetic portion, the non-magnetic portion comprising a spinel-structured oxide comprising Mg2-xAl2xTi1-xO4 and having a dielectric constant between about 7 and 14, wherein 0
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3.发明申请公开(公告)号：US20170294696A1
公开(公告)日：2017-10-12
申请号：US15623740
申请日：2017-06-15
CPC分类号： H01P1/383 , C01G23/003 , H01P1/2084 , H01P1/212 , H01P1/218 , H01P1/387
摘要： Disclosed are methods related to junction ferrite devices having improved insertion loss performance. In some implementations, a method of fabricating a circulator includes providing a grounding plane having a first side and a second side, positioning a magnet on the first side of the grounding plane, and positioning a ferrite-based disk on the second side of the grounding plane, the ferrite-based disk including a metalized layer on a grounding surface such that the metalized layer is in electrical contact with the second side of the grounding plane. In some implementations, a method for fabricating a ferrite disk assembly for a radio-frequency circulator includes forming a ferrite-based disk that includes a ferrite center portion, and forming a metalized layer on a first surface of the disk to improve electrical contact between the first surface of the disk with an external contact surface. Optionally, the metalized layer can be a silver layer formed on the grounding surface of the disk and having a desired thickness.
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公开(公告)号：US12113264B2
公开(公告)日：2024-10-08
申请号：US18494036
申请日：2023-10-25
CPC分类号： H01P1/38 , H03F3/245 , H04B1/40 , H03F2200/294 , H03F2200/451
摘要： A method of forming an integrated microstrip circulator includes translating a ferrite disc into an aperture in a dielectric substrate, securing the ferrite disc in the dielectric substrate with an adhesive to form a composite structure, and forming circuitry on an upper surface of the composite structure and forming surface mount contacts on a lower surface of the composite structure by metallizing the upper and lower surfaces of the composite structure.
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5.发明授权公开(公告)号：US11843152B2
公开(公告)日：2023-12-12
申请号：US17540522
申请日：2021-12-02
CPC分类号： H01P1/38 , H03F3/245 , H04B1/40 , H03F2200/294 , H03F2200/451
摘要： An integrated microstrip circulator comprises a dielectric substrate having an aperture, a ferrite disc secured within the aperture in the dielectric substrate, metallization on upper surfaces of the dielectric substrate and the ferrite disc, and surface mount contacts disposed on lower surfaces of the dielectric substrate and the ferrite disc and in electrical communication with the metallization on the upper surfaces of the dielectric substrate and the ferrite disc.
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公开(公告)号：US20230102155A1
公开(公告)日：2023-03-30
申请号：US17936792
申请日：2022-09-29
发明人： Michael David Hill , David Bowie Cruickshank , Iain Alexander Macfarlane , Srinivas Polisetty , James Gerard O'Callaghan , Scott David Wilson
摘要： The disclosed technology relates to a ceramic composition and an article formed therefrom. A ceramic article for radio frequency applications is formed of a ceramic material having a chemical formula represented by: Bi1.0+aY2.0-a-x-2yCax+2yFe5-x-yMIVxVyO12 or Bi1.0+aY2.0-a-2yCa2yFe5-y-zVyInzO12. The ceramic material has a composition such that a normalized change in saturation magnetization (Δ4πMs), defined as Δ4πMs=[(4πMs at 20° C.)-(4πMs at 120° C.)]/(4πMs at 20° C.), is less than about 0.35.
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公开(公告)号：US20230096130A1
公开(公告)日：2023-03-30
申请号：US17936795
申请日：2022-09-29
发明人： Michael David Hill , David Bowie Cruickshank , Iain Alexander Macfarlane , Srinivas Polisetty , James Gerard O'Callaghan , Scott David Wilson
IPC分类号： H01P1/387 , C04B35/505
摘要： The disclosed technology relates to a ceramic composition and an article formed therefrom. A ceramic article for radio frequency applications is formed of a ceramic material having a chemical formula represented by: Bi1.0+aY2.0−a−x−2yCax+2yFe5−x−yMIVxVyO12 or Bi1.0+aY2.0−a−2yCa2yFe5−y−zVyInzO12. The ceramic material has a composition such that a normalized change in saturation magnetization (Δ4πMs), defined as Δ4πMs=[(4πMs at 20° C.)−(4πMs at 120° C.)]/(4πMs at 20° C.), is less than about 0.35.
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公开(公告)号：US20180166763A1
公开(公告)日：2018-06-14
申请号：US15807914
申请日：2017-11-09
CPC分类号： H01P3/121 , H01P1/36 , H01P1/38 , H01P1/387 , H01P3/085 , H01P3/16 , H04B1/00 , H04B1/0057 , H04B1/04 , H04B2001/0408
摘要： Disclosed are embodiments of microstrip and substrate integrated waveguide circulators/isolators which can be integrated with a substrate. This composite structure can serve as a platform for other components, allowing for improved miniaturization of components. Embodiments of the disclosure can be particular advantageous in the high frequency ranges, such as above 1.8 GHz or above 3 GHz, which allows devices to be used in the 5G space.
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9.发明公开公开(公告)号：US20240079753A1
公开(公告)日：2024-03-07
申请号：US18494036
申请日：2023-10-25
CPC分类号： H01P1/38 , H03F3/245 , H04B1/40 , H03F2200/294 , H03F2200/451
摘要： A method of forming an integrated microstrip circulator includes translating a ferrite disc into an aperture in a dielectric substrate, securing the ferrite disc in the dielectric substrate with an adhesive to form a composite structure, and forming circuitry on an upper surface of the composite structure and forming surface mount contacts on a lower surface of the composite structure by metallizing the upper and lower surfaces of the composite structure.
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10.发明授权公开(公告)号：US11891340B2
公开(公告)日：2024-02-06
申请号：US16514876
申请日：2019-07-17
发明人： Michael David Hill , David Bowie Cruickshank , David Martin Firor , Iain Alexander Macfarlane , Jeffrey Alan Shunkwiler , John Jianzhong Jiang
IPC分类号： C04B35/443 , C04B35/465 , C04B35/26 , C04B41/00 , C04B35/64 , H01P1/387 , B32B18/00 , C04B37/00 , H01P11/00
CPC分类号： C04B35/465 , B32B18/00 , C04B35/265 , C04B35/2658 , C04B35/64 , C04B37/00 , C04B37/001 , C04B41/0072 , H01P1/387 , H01P11/00 , C04B35/443 , C04B2235/656 , C04B2235/763 , C04B2235/77 , C04B2235/94 , C04B2237/34 , C04B2237/765 , C04B2237/84
摘要： The disclosed technology generally relates dielectric materials, and more particularly to a combination of co-fireable dielectric materials that can be attached to each other without the use of adhesives. In an aspect, a composite article comprises a magnetic portion comprising a nickel zinc ferrite. The composite article additionally comprises a non-magnetic portion contacting the magnetic portion, the non-magnetic portion comprising a spinel-structured oxide comprising Mg2-xAl2xTi1-xO4 and having a dielectric constant between about 7 and 14, wherein 0
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