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公开(公告)号：US20240128627A1
公开(公告)日：2024-04-18
申请号：US18372834
申请日：2023-09-26
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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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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公开(公告)号：US11961644B2
公开(公告)日：2024-04-16
申请号：US17752659
申请日：2022-05-24
CPC分类号： H01F1/10 , C01G49/0018 , C01G49/0036 , C01G49/0054 , C01G49/0063 , H01F1/346 , H01F41/0266 , C01P2002/30 , C01P2002/34 , C01P2002/52 , C01P2002/77 , C01P2006/40 , C01P2006/42 , H01P1/36 , H01P1/38
摘要： Disclosed are embodiments of synthetic garnet materials for use in radiofrequency applications. In some embodiments, increased amounts of gadolinium can be added into specific sites in the crystal structure of the synthetic garnet by incorporating indium, a trivalent element. By including both indium and increased amounts of gadolinium, the dielectric constant can be improved. Thus, embodiments of the disclosed material can be advantageous in both above and below resonance applications, such as for isolators and circulators.
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公开(公告)号：US11565976B2
公开(公告)日：2023-01-31
申请号：US16440221
申请日：2019-06-13
发明人： Michael David Hill , David Bowie Cruickshank , Jeffrey Alan Shunkwiler , John Jianzhong Jiang , David Martin Firor , Neil Bruce Coats
IPC分类号： C04B35/495 , C04B35/26 , C04B37/00 , H01P1/36 , H01P1/38
摘要： Disclosed herein are embodiments of low temperature co-fireable scheelite materials which can be used in combination with high dielectric materials, such as nickel zinc ferrite, to form composite structures, in particular for isolators and circulators for radiofrequency components. In some embodiments, the scheelite material can include aluminum oxide for temperature expansion regulation.
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公开(公告)号：US20210087071A1
公开(公告)日：2021-03-25
申请号：US16984989
申请日：2020-08-04
摘要： Embodiments of synthetic garnet materials having advantageous properties, especially for below resonance frequency applications, are disclosed herein. In particular, embodiments of the synthetic garnet materials can have high Curie temperatures and dielectric constants while maintaining low magnetization. These materials can be incorporated into isolators and circulators, such as for use in telecommunication base stations.
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6.发明申请公开(公告)号：US20210050133A1
公开(公告)日：2021-02-18
申请号：US16988967
申请日：2020-08-10
发明人： Michael David Hill , David Bowie Cruickshank , David Martin Firor , Iain Alexander MacFarlane , Hugh Charles Hancock , Jeffrey Alan Shunkwiler , John Jianzhong Jiang
摘要： Disclosed are embodiments of materials for 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. In particular, a sintering aid can be used to improve the fit between a ferrite material and a dielectric material, improving performance.
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7.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：US20160362341A1
公开(公告)日：2016-12-15
申请号：US15181786
申请日：2016-06-14
CPC分类号： C04B35/48 , C04B35/2641 , C04B35/2675 , C04B35/624 , C04B35/6261 , C04B35/6262 , C04B35/62655 , C04B35/62675 , C04B35/64 , C04B35/645 , C04B41/0027 , C04B41/009 , C04B41/80 , C04B2235/3208 , C04B2235/3224 , C04B2235/3225 , C04B2235/3239 , C04B2235/3244 , C04B2235/3248 , C04B2235/3255 , C04B2235/3256 , C04B2235/3272 , C04B2235/3274 , C04B2235/3286 , C04B2235/3294 , C04B2235/3298 , C04B2235/442 , C04B2235/5427 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/604 , C04B2235/608 , C04B2235/77 , C04B2235/79 , H01P1/2084 , H01P1/36 , H01P1/38 , H01P11/008
摘要： Disclosed are embodiments of synthetic garnet materials for use in radiofrequency applications. In some embodiments, increased amounts of bismuth can be added into specific sites in the crystal structure of the synthetic garnet in order to boost certain properties, such as the dielectric constant and magnetization. Accordingly, embodiments of the disclosed materials can be used in high frequency applications, such as in base station antennas.
摘要翻译： 公开了用于射频应用的合成石榴石材料的实施方案。 在一些实施方案中，可以将增加量的铋添加到合成石榴石的晶体结构中的特定位置，以便提高某些性能，例如介电常数和磁化强度。 因此，所公开的材料的实施例可以用在诸如基站天线的高频应用中。
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公开(公告)号：US20160148732A1
公开(公告)日：2016-05-26
申请号：US14950765
申请日：2015-11-24
CPC分类号： H01F7/0273 , H01P1/36 , H01P1/38 , H01P1/387 , H01P1/39 , H04B1/48 , H04B2001/485
摘要： Apparatus and methods related to ferrite based circulators are disclosed. A ferrite disk used in a circulator can be configured to reduce intermodulation distortion when routing radio-frequency signals having closely spaced frequencies. Such a reduction in intermodulation distortion can be achieved by adjusting magnetization at the edge portion of the ferrite disk. By way of an example, a ferrite disk with a reduced saturation magnetization (4PiMs) edge portion can reduce intermodulation distortion. Example configurations with such a reduced 4PiMs edge portions are disclosed.
摘要翻译： 公开了与基于铁氧体的循环器相关的装置和方法。 在循环器中使用的铁氧体磁盘可以配置成在布置具有紧密间隔的频率的射频信号时减少互调失真。 可以通过调整铁氧体磁盘的边缘部分的磁化来实现互调失真的这种减小。 作为示例，具有降低的饱和磁化强度（4PiMs）边缘部分的铁氧体磁盘可以减少互调失真。 公开了具有这种减小的4PiM边缘部分的示例配置。
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10.发明申请EFFECTIVE SUBSTITUTIONS FOR RARE EARTH METALS IN COMPOSITIONS AND MATERIALS FOR ELECTRONIC APPLICATIONS 有权用于电子应用的组合物和材料中的稀土金属的有效替代公开(公告)号：US20140175327A1
公开(公告)日：2014-06-26
申请号：US14191096
申请日：2014-02-26
IPC分类号： C04B35/505 , C04B35/64
CPC分类号： C30B29/28 , C04B35/2641 , C04B35/505 , C04B35/64 , C04B35/645 , C04B2235/3208 , C04B2235/3225 , C04B2235/3248 , C04B2235/3274 , C04B2235/3298 , C04B2235/656 , C04B2235/764 , C04B2235/96 , H01F10/24 , H01F10/245
摘要： Embodiments disclosed herein include methods of modifying synthetic garnets used in RF applications to reduce or eliminate Yttrium or other rare earth metals in the garnets without adversely affecting the magnetic properties of the material. Some embodiments include substituting Bismuth for some of the Yttrium on the dodecahedral sites and introducing one or more high valency ions to the octahedral and tetrahedral sites. Calcium may also be added to the dodecahedral sites for valency compensation induced by the high valency ions, which could effectively displace all or most of the Yttrium (Y) in microwave device garnets. The modified synthetic garnets with substituted Yttrium (Y) can be used in various microwave magnetic devices such as circulators, isolators and resonators.
摘要翻译： 本文公开的实施方案包括在RF应用中改进合成石榴石的方法，以减少或消除石榴石中的钇或其它稀土金属，而不会不利地影响材料的磁性。 一些实施方案包括在十二面体位置上取代铋中的一些钇，并将一个或多个高价离子引入八面体和四面体位置。 钙也可以加入到十二面体位点，用于由高价离子诱导的价态补偿，这可以有效地置换微波装置石榴石中的所有或大部分钇（Y）。 具有取代钇（Y）的改性合成石榴石可用于各种微波磁性器件，例如循环器，隔离器和谐振器。
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