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公开(公告)号:US20110248897A1
公开(公告)日:2011-10-13
申请号:US13037167
申请日:2011-02-28
CPC分类号: H01Q19/10 , H01Q1/2283 , H01Q15/0026 , H01Q15/006 , H01Q15/0066 , H01Q15/0093
摘要: A flat dish antenna includes a plurality of concentric coils, a plurality of eccentric coils, a metal backing, a dielectric material, and an antenna structure. The pluralities of concentric coils and eccentric coils are on a layer of a substrate. A concentric coil has a radiation pattern that is substantially normal to a plane of the concentric coil and an eccentric coil has a radiation pattern that's is offset from normal to a plane of the eccentric coil. The metal backing is on another layer of the substrate and the dielectric material is between the layer and the other layer of the substrate. The concentric coils and the eccentric coils are electrically coupled to the metal backing to produce a distributed inductor-capacitor networking that provides a focal point based on a combination of their radiation patterns. The antenna structure is located proximal to the focal point.
摘要翻译: 扁平天线包括多个同心线圈,多个偏心线圈,金属背衬,电介质材料和天线结构。 多个同心线圈和偏心线圈位于基底层上。 同心线圈具有基本上垂直于同心线圈的平面的辐射图案,偏心线圈具有从法线偏离偏心线圈的平面的辐射图案。 金属衬垫位于衬底的另一层上,电介质材料位于衬底的层与另一层之间。 同心线圈和偏心线圈电耦合到金属背衬以产生分布式电感器 - 电容器组合,其基于它们的辐射图案的组合提供焦点。 天线结构位于焦点附近。
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公开(公告)号:US20100220022A1
公开(公告)日:2010-09-02
申请号:US12772129
申请日:2010-04-30
IPC分类号: H01Q21/00
摘要: A multiple antenna apparatus includes a substrate, a first antenna structure, and a second antenna structure. The first antenna structure includes a first metal trace that has a first pattern confined in a first geometric shape and has a near-zero electric field plane. The second antenna structure includes a second metal trace that has a first pattern confined to a second geometric shape. The second antenna structure is positioned on the substrate in substantial alignment with the near-zero electric field plane of the first antenna structure.
摘要翻译: 多天线装置包括基板,第一天线结构和第二天线结构。 第一天线结构包括第一金属迹线,其具有限定在第一几何形状中并具有近零电场平面的第一图案。 第二天线结构包括具有限定为第二几何形状的第一图案的第二金属迹线。 第二天线结构位于与第一天线结构的近零电场平面基本对准的基板上。
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公开(公告)号:US20100151784A1
公开(公告)日:2010-06-17
申请号:US12475484
申请日:2009-05-30
IPC分类号: H04B7/24
CPC分类号: H04B17/0037 , H04B7/084 , H04B17/104
摘要: A receiver includes an antenna array, a plurality of phase shifters, a matrix module, a low noise amplifier module, and a down conversion module. The antenna array is operably coupled to receive an inbound wireless signal. The plurality of phase shifters is operably coupled to the antenna array and to produce a plurality of phase shifted inbound wireless signals. The matrix module is operably coupled to beamform the plurality of phase shifted inbound wireless signals to produce a plurality of beamformed and phase shifted inbound wireless signals. The low noise amplifier module is operably coupled to amplify one or more of the plurality of beamformed and phase shifted inbound wireless signals to produce one or more amplified inbound signals. The down conversion module is operably coupled to convert the one or more amplified inbound wireless signals into one or more baseband or near baseband signals.
摘要翻译: 接收机包括天线阵列,多个移相器,矩阵模块,低噪声放大器模块和下变频模块。 天线阵列可操作地耦合以接收入站无线信号。 多个移相器可操作地耦合到天线阵列并产生多个相移的入站无线信号。 矩阵模块可操作地耦合到波束成形多个相移的入站无线信号以产生多个波束形成和相移的入站无线信号。 低噪声放大器模块可操作地耦合以放大多个波束形成和相移的入站无线信号中的一个或多个,以产生一个或多个放大的入站信号。 下变频模块可操作地耦合以将一个或多个放大的入站无线信号转换成一个或多个基带或近基带信号。
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公开(公告)号:US06947010B2
公开(公告)日:2005-09-20
申请号:US11002643
申请日:2004-12-03
CPC分类号: H01Q1/241 , H01Q1/38 , H01Q3/24 , H01Q11/105 , H01Q25/002
摘要: A system includes a support device and an elongated spiral antenna coupled to the support device. The elongated spiral antenna has a contracted portion and an expanded portion. The expanded portion provides beam steering and directivity. The system also includes a feed line coupled to the elongated spiral antenna. A method for forming the elongated spiral antenna uses a predetermined formula to form arms of the elongated spiral antenna. The arms can be formed by printing the arms on a printed circuit board.
摘要翻译: 系统包括支撑装置和耦合到支撑装置的细长螺旋天线。 细长螺旋天线具有收缩部分和扩展部分。 扩展部分提供光束转向和方向性。 该系统还包括耦合到细长螺旋天线的馈线。 用于形成细长螺旋天线的方法使用预定公式形成细长螺旋天线的臂。 臂可以通过将印刷臂印在印刷电路板上而形成。
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公开(公告)号:US06608603B2
公开(公告)日:2003-08-19
申请号:US09935701
申请日:2001-08-24
IPC分类号: H03H740
CPC分类号: H03H7/40
摘要: A signal sensing module senses an RF signal and produces one or more secondary signals representative of the RF signal. An impedance matching control module generates a control signal, based on the one or more secondary signals, which is indicative of an impedance mismatch between a load and a communications device. The control signal is then applied to at least one variable impedance device to adjust the impedance of an impedance matching network and thereby reduce the impedance mismatch between the load and the communications device. In an embodiment, the at least one variable impedance device is a barium strontium titanate, thin film, parallel plate capacitor. In other embodiments, other variable impedance devices such as other types of thin film capacitors or varactor diodes are be used to adjust the impedance of the impedance matching network.
摘要翻译: 信号感测模块感测RF信号并产生表示RF信号的一个或多个次要信号。 阻抗匹配控制模块基于一个或多个辅助信号产生控制信号,其表示负载和通信设备之间的阻抗失配。 然后将控制信号施加到至少一个可变阻抗装置以调整阻抗匹配网络的阻抗,从而减少负载和通信装置之间的阻抗失配。 在一个实施例中,至少一个可变阻抗器件是钛酸锶钡,薄膜,平行板电容器。 在其他实施例中,可以使用诸如其他类型的薄膜电容器或变容二极管的其它可变阻抗器件来调整阻抗匹配网络的阻抗。
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公开(公告)号:US5090017A
公开(公告)日:1992-02-18
申请号:US359770
申请日:1989-05-31
摘要: Non-normal plane wave electromagnetic scattering from active guiding structures, such as dielectric films, generates large resonances at discrete plane-wave angles of incidance relative to an interface with the active film. These resonances are generated from a "leaky" wave phase matching condition. Enhancement in the scattered field intensities on the order of 100 is achieved using finite diameter pump and probe laser beams and active films as thin as 6 microns. Solid state and dye lasers with unique characteristics are obtained. Oscillators, amplifiers, cyroscopic and nonlinear laser applications employing the active guiding structure or film provide enhanced performance.
摘要翻译: 来自主动导向结构(例如电介质膜)的非正常平面波电磁散射相对于与活性膜的界面在离散的平面波角发生大的谐振。 这些谐振是从“泄漏”波相位匹配条件产生的。 使用有限直径的泵浦和探针激光束以及6微米的有源膜可实现100级的散射场强度的增强。 获得具有独特特性的固态和染料激光器。 使用主动导向结构或薄膜的振荡器,放大器,光学和非线性激光应用提供了更好的性能。
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