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公开(公告)号：US11846865B1
公开(公告)日：2023-12-19
申请号：US18459310
申请日：2023-08-31
申请人： Lumotive, Inc.
发明人： Gleb M. Akselrod
CPC分类号： G02F1/29 , G02F2202/30 , G02F2203/15
摘要： A metasurface may include a substrate layer and a two-dimensional array of metallic optical pillars arranged in parallel rows extending vertically relative to the substrate layer. Gaps between adjacent pillars form optical resonators and a tunable dielectric material is positioned in the optical resonators between the pillars. A reflective layer positioned between the substrate layer and the two-dimensional array of pillars may include a two-dimensional array of elongated rectangular reflector patches arranged in parallel rows with an electrical isolation gap between adjacent rows of reflector patches. The plurality of reflector patches may be arranged lengthwise within each row with an off-resonance gap between adjacent reflector patches. The reflector patches in adjacent rows may be offset with respect to one another, such that the off-resonance gaps between adjacent reflector patches in one row are not aligned with the off-resonance gaps between adjacent reflector patches in an adjacent row.
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公开(公告)号：US20210376476A1
公开(公告)日：2021-12-02
申请号：US17318439
申请日：2021-05-12
申请人： PREMO, S.A.
发明人： Jose Ramon FERNANDEZ DE LA FUENTE , Claudio CANETE CABEZA , Antonio ROJAS CUEVAS , Francisco Ezequiel NAVARRO PEREZ
摘要： A long range low frequency antenna having an elongated magnetic core; a coil surrounding the elongated magnetic core; a bobbin; where the elongated magnetic core is introduced in a cavity of the bobbin; and a housing overmolded on the bobbin in a waterproof manner. The antenna also comprises at least one damper located at one extreme of the elongated magnetic core. The at least one damper is made of an elastic and thermally-stable compound having a resin and a first filler including a natural mineral filler. Therefore, longitudinal dilatations, shrinkage, mechanical shocks, and vibrations of the elongated magnetic core are absorbed by the at least one damper, avoiding an impact over an inductance variation of the coil.
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公开(公告)号：US20190115662A1
公开(公告)日：2019-04-18
申请号：US16155384
申请日：2018-10-09
发明人： Satoshi Sakita , Minoru Sakurai , Tabito Tonooka
CPC分类号： H01Q5/357 , H01Q1/243 , H01Q1/48 , H01Q5/335 , H01Q5/371 , H01Q9/0407 , H01Q9/30 , H01Q11/04 , H01Q21/28
摘要： The wireless communication device has a first radiation element, which includes a first line path being extended between a first end and a second end and performs communication at a first frequency. The device also has a second radiating element coupled to the first radiating element and resonating at a second frequency, which element has a second line path extending from a first connecting portion connected to the sheet metal to a third end portion near the first end portion, and a third path line extending from an intermediate point between the first connecting portion and the third end portion to the fourth end portion. And a power supply circuit for a third frequency is connected to the fourth end via a cutoff circuit which cuts off the second frequency. With this configuration, the wireless communication device enables the communication in more frequency bands.
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4.发明申请公开(公告)号：US20160352020A1
公开(公告)日：2016-12-01
申请号：US15052817
申请日：2016-02-24
发明人： Lee M. Hively
IPC分类号： H01Q11/04
CPC分类号： G06F17/5009 , G06F17/10 , H01Q11/04 , H04B13/02 , H04W72/0453
摘要： Scalar-longitudinal waves (SLWs) may be transmitted and/or received. A first apparatus configured to transmit and/or receive SLWs may include a linear first conductor configured to operate as a linear monopole antenna at a first operating frequency. The first apparatus may include a tubular second conductor coaxially aligned with the first conductor and an annular balun configured to cancel most or all return current on an outer surface of the second conductor during operation such that the first conductor transmits or receives SLWs. A second apparatus configured to transmit and/or receive scalar-longitudinal waves may include a bifilar coil formed in an alternating fashion of a first conductor and a second conductor such that an electrical current in the coil will propagate in opposite directions in adjacent turns of the coil thereby cancelling any magnetic field so that during operation the coil transmits or receives SLWs.
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公开(公告)号：US09225069B2
公开(公告)日：2015-12-29
申请号：US13654420
申请日：2012-10-18
发明人： Steven Bowers , Seyed Ali Hajimiri
摘要： An integrated Multi-Port Driven (MPD) antenna that can be driven at many points with different signals. An integrated MPD radiating source utilizing an 8-phase ring oscillator and eight power amplifiers to drive the MPD antenna at 161 GHz with a total radiated power of −2 dBm and a single element EIRP of 4.6 dBm has been demonstrated in silicon with single lobe well behaved radiation patterns closely matching simulation.
摘要翻译： 集成的多端口驱动（MPD）天线，可以在不同信号的多个点被驱动。 采用8相环形振荡器和8个功率放大器的集成MPD辐射源，以161 dB的总辐射功率和4.6 dBm的单个元件EIRP驱动MPD天线，已经在具有单瓣阱的硅中证明 表现出与模拟密切匹配的辐射图。
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公开(公告)号：US20110148723A1
公开(公告)日：2011-06-23
申请号：US12999454
申请日：2008-06-23
申请人： Erik Bengtsson , Richard Breiter
发明人： Erik Bengtsson , Richard Breiter
IPC分类号： H01Q11/04
CPC分类号： H01Q9/0442 , H01Q1/243 , H01Q9/0421 , H01Q9/42
摘要： An antenna arrangement including an antenna; a first variable impedance circuit connected between ground and a first point of the antenna; and a second variable impedance circuit connected between ground and a second point of the antenna and a connection from a third point of the antenna to ground wherein; the first point of the antenna and the second point of the antenna are separated along the length of the antenna and the impedance of the first variable impedance circuit and the second variable impedance circuit control the resonant frequency of the antenna arrangement.
摘要翻译： 一种包括天线的天线装置; 连接在天线与第一点之间的第一可变阻抗电路; 以及连接在天线的地面和第二点之间的第二可变阻抗电路以及从天线的第三点到地的连接，其中： 天线的第一点和天线的第二点沿着天线的长度分开，并且第一可变阻抗电路和第二可变阻抗电路的阻抗控制天线装置的谐振频率。
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公开(公告)号：US20050128149A1
公开(公告)日：2005-06-16
申请号：US10498886
申请日：2002-12-19
IPC分类号： H01Q1/24 , H01Q1/38 , H01Q1/44 , H01Q5/00 , H01Q5/371 , H01Q5/40 , H01Q11/04 , H01Q21/29 , H01Q21/30
摘要： An antenna device has at least one antenna element with two radiators disposed on a retainer member. The retainer member may be a separate unit but may also constitute an integral part of a casing for a cell or mobile telephone. In order to provide superior antenna performance and simple impedance adaptation, the radiators are connected in parallel and are designed so that they have a surface extent which is shaped to conform closely with the shape of interior surfaces of the casing. In one embodiment, there is an outer radiator which has a connecting portion which is located physically proximal the antenna element in order thereby to realize a capacitative/inductive connection of the outer radiator to the antenna element.
摘要翻译： 天线装置具有至少一个天线元件，其中两个散热器设置在保持器构件上。 保持器构件可以是单独的单元，但也可以构成用于电池或移动电话的外壳的组成部分。 为了提供优异的天线性能和简单的阻抗适配，散热器并联连接并且被设计成使得它们具有被形成为与壳体的内表面的形状紧密配合的表面程度。 在一个实施例中，存在外部辐射器，其具有物理上靠近天线元件的连接部分，从而实现外辐射器与天线元件的电容/电感连接。
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公开(公告)号：US5936594A
公开(公告)日：1999-08-10
申请号：US819248
申请日：1997-05-17
申请人： I-Ping Yu , Gary Salvail
发明人： I-Ping Yu , Gary Salvail
摘要： A multiple frequency band, multi-spiral antenna that employs filters to pass the band of one spiral and reject the band of the other spirals. Additional isolation is achieved by arranging adjacent spirals to have opposite senses. All the isolation and filtering is accomplished within the body of the antenna. The antenna includes two, two-arm spirals. The higher frequency spiral resides in the interior of the lower frequency spiral. The two spirals are concentric about each other, and lie on the same plane. A balun and filter circuit is connected to the two spirals, and is disposed within the antenna body.
摘要翻译： 多频带，多螺旋天线，其使用滤波器来传递一个螺旋带并且拒绝另一个螺旋带。 通过布置相邻的螺旋具有相反的感觉来实现附加隔离。 所有的隔离和滤波都是在天线体内实现的。 天线包括两个双臂螺旋。 较高频率的螺旋位于较低频率螺旋的内部。 两个螺旋线彼此同心，并且位于同一平面上。 平衡 - 不平衡转换器和滤波器电路连接到两个螺旋线，并且设置在天线体内。
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公开(公告)号：US5191351A
公开(公告)日：1993-03-02
申请号：US458877
申请日：1989-12-29
申请人： Dean A. Hofer , Matthew L. Pecak
发明人： Dean A. Hofer , Matthew L. Pecak
摘要： A folded broadband antenna provides a symmetrical radiation pattern comparable to corresponding planar antennas (such as a planar spiral). The folded antenna can be integrated into a leading edge radome, eliminating the forward antenna cavity, and thereby, eliminating the internal wall reflections that cause radiation pattern distortion. A broadband antenna (61/62), such as an archimedean spiral, is folded at an apex area (64) that includes a fold-slot (66). The fold-slot enhances flexure, and allows a center-feed balun shielding tube (84) to extend into close proximity to the antenna aperture (61) for increased balun shielding.
摘要翻译： 折叠的宽带天线提供与对应的平面天线（例如平面螺旋）相当的对称辐射图。 折叠的天线可以集成到前沿天线罩中，消除了前向天线腔，从而消除了导致辐射图形失真的内壁反射。 诸如阿基米德螺旋的宽带天线（61/62）在包括折叠槽（66）的顶点区域（64）处被折叠。 折叠槽增强挠曲，并且允许中心馈送平衡 - 不平衡变压器屏蔽管（84）延伸到靠近天线孔径（61）以增加平衡 - 不平衡变压器屏蔽。
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公开(公告)号：US4760400A
公开(公告)日：1988-07-26
申请号：US885954
申请日：1986-07-15
申请人： Andrew J. Lait
发明人： Andrew J. Lait
CPC分类号： H01Q13/206 , H01Q11/04
摘要： The antenna is adapted to be connected to a coaxial cable and includes a dielectric carrier board and a radiating element undulating longitudinally of the carrier board. The carrier board and radiating element are disposed in a conductive channel which has side walls adjacent the side edges of the carrier board. An input transition means is provided between the center conductor of the coaxial connector and the undulating track to provide a transition from the impedance of the coaxial cable to the impedance of the radiating element of the sandwich-wire antenna. When the antenna may, or may not, be connected to a coaxial cable, the side walls extend above the carrier board for such a height that the radiating aperture, which comprises the gap between the top edges of the side walls, presents a resistive load in the plane of the radiating element.
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