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公开(公告)号：US20190058245A1
公开(公告)日：2019-02-21
申请号：US16081151
申请日：2017-03-06
摘要： An antenna system including a retro-directive adaptive phased array antenna, comprised of a group of antenna modules. There is a phasing cell in each antenna module that adds a certain amount of phase shift to the wireless transmit and receive signals in order to generate a pair of retro-directive radiation beams, such that the wireless transmit and receive beams are aligned to each other. Each phasing cell synthesizes the phase shift values for the transmit and receive beams using only one phase shifter. Therefore, as a beam forming algorithm changes the receive beam forming coefficients (i.e. the phase shifters values) to steer the receiving beam, the transmit beam will be automatically aligned to that of receive beam for arbitrary transmit and receive frequencies.
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公开(公告)号：US20120194267A1
公开(公告)日：2012-08-02
申请号：US13388852
申请日：2010-08-05
IPC分类号： H03F3/60
CPC分类号： H03F3/605 , H03F1/42 , H03F1/565 , H03F3/193 , H03F3/1935 , H03F3/607 , H03F2200/108 , H03F2200/492 , H03F2200/75
摘要： A distributed amplifier is provided that is broadband and band pass with controllable bandwidth. In the distributed amplifier circuit, termination impedance of the input transmission line is not matched with the characteristics impedance of the input transmission line and/or the termination impedance of the output transmission line is not matched with the characteristics impedance of the output transmission line, thus providing the broadband and band pass with controllable bandwidth attributes.
摘要翻译： 提供了一种分布式放大器，它是带宽可控的宽带和带通。 在分布式放大器电路中，输入传输线的终端阻抗与输入传输线的特性阻抗不匹配，和/或输出传输线的终端阻抗与输出传输线的特性阻抗不匹配，因此 提供具有可控带宽属性的宽带和带通。
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公开(公告)号：US10665928B2
公开(公告)日：2020-05-26
申请号：US16081151
申请日：2017-03-06
摘要： An antenna system including a retro-directive adaptive phased array antenna, comprised of a group of antenna modules. There is a phasing cell in each antenna module that adds a certain amount of phase shift to the wireless transmit and receive signals in order to generate a pair of retro-directive radiation beams, such that the wireless transmit and receive beams are aligned to each other. Each phasing cell synthesizes the phase shift values for the transmit and receive beams using only one phase shifter. Therefore, as a beam forming algorithm changes the receive beam forming coefficients (i.e. the phase shifters values) to steer the receiving beam, the transmit beam will be automatically aligned to that of receive beam for arbitrary transmit and receive frequencies.
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公开(公告)号：US20120075154A1
公开(公告)日：2012-03-29
申请号：US13177756
申请日：2011-07-07
IPC分类号： H01Q13/10
CPC分类号： H01Q13/106
摘要： A microstrip-fed antenna is disclosed having a first dielectric substrate and a second dielectric substrate. The second dielectric substrate is disposed on the first dielectric substrate and the first dielectric substrate has a relative permittivity greater than or equal to the second dielectric substrate. The antenna further includes a microstrip line formed in the second dielectric substrate and a metal layer formed in the second dielectric substrate. The metal layer is positioned between the microstrip line and the first dielectric substrate and includes a slot.
摘要翻译： 公开了一种具有第一电介质基板和第二电介质基板的微带馈电天线。 第二电介质基板设置在第一电介质基板上，第一电介质基板的相对介电常数大于或等于第二电介质基板。 天线还包括形成在第二电介质基板中的微带线和形成在第二电介质基板中的金属层。 金属层位于微带线和第一电介质基板之间，并且包括槽。
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公开(公告)号：US08686790B2
公开(公告)日：2014-04-01
申请号：US13388852
申请日：2010-08-05
IPC分类号： H03F3/60
CPC分类号： H03F3/605 , H03F1/42 , H03F1/565 , H03F3/193 , H03F3/1935 , H03F3/607 , H03F2200/108 , H03F2200/492 , H03F2200/75
摘要： A distributed amplifier is provided that is broadband and band pass with controllable bandwidth. In the distributed amplifier circuit, termination impedance of the input transmission line is not matched with the characteristics impedance of the input transmission line and/or the termination impedance of the output transmission line is not matched with the characteristics impedance of the output transmission line, thus providing the broadband and band pass with controllable bandwidth attributes.
摘要翻译： 提供了一种分布式放大器，它是带宽可控的宽带和带通。 在分布式放大器电路中，输入传输线的终端阻抗与输入传输线的特性阻抗不匹配，和/或输出传输线的终端阻抗与输出传输线的特性阻抗不匹配，因此 提供具有可控带宽属性的宽带和带通。
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公开(公告)号：US20100067203A1
公开(公告)日：2010-03-18
申请号：US12499348
申请日：2009-07-08
IPC分类号： H05K7/06
CPC分类号： H01S1/02 , G01N21/3581
摘要： Apparatus for carrying a plurality of photoconductive antennas is configured to facilitate the independent application of a voltage bias to each of the photoconductive antennas. The apparatus includes a carrier device, which comprises a support member configured for supporting a substrate containing a plurality of photoconductive integrated circuits. The support member has a side edge and a central portion having a window therein shaped for exposing the plurality of photoconductive integrated circuits to an incident optical beam. At least three contact plates are positioned on the central portion of the support member adjacent the window, and are configured to be electrically connected to an electrode of one of the photoconductive integrated circuits and to an electrode of another one of the photoconductive integrated circuits. At least two pairs of input terminals are located on the support member adjacent the side edge thereof, and are spaced from each other. The device also includes conductors for electrically connecting the contact plates to the pairs of input terminals, which comprise a pair of conductors extending from each of the contact plates. The pair of conductors comprises a first conductor connected to a terminal of one of the pairs of input terminals, and a second conductor connected to a terminal of another of the pairs of input terminals.
摘要翻译： 用于承载多个光电导天线的装置被配置为便于将电压偏置独立地施加到每个光电导天线。 该装置包括载体装置，其包括支撑构件，该支撑构件被构造用于支撑含有多个光电导集成电路的基板。 支撑构件具有侧边缘和中心部分，其中具有窗口，其形状用于将多个光电导集成电路暴露于入射光束。 至少三个接触板位于与窗口相邻的支撑构件的中心部分上，并且被配置为电连接到一个光电导集成电路的电极和另一个光电导集成电路的电极。 至少两对输入端子位于邻近其侧边缘的支撑构件上，并且彼此间隔开。 该装置还包括用于将接触板电连接到输入端子对的导体，其包括从每个接触板延伸的一对导体。 一对导体包括连接到一对输入端子的端子的第一导体和连接到另一对输入端子的端子的第二导体。
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公开(公告)号：US20210197834A1
公开(公告)日：2021-07-01
申请号：US17139212
申请日：2020-12-31
摘要： A sensor and method for sleep position detection including: a transmitter configured to transmit electromagnetic waves between 30 GHz and 300 GHz; a receiver configured to receive the electromagnetic waves from the transmitter, wherein the transmitter and receiver are positioned in relation to person sleeping such that the receiver receives reflected electromagnetic waves; and a control station configured to analyze the transmitted and received electromagnetic waves to determine a position of the person sleeping. In some cases, the method may include: forming a radar cube of results; performing a fast fourier transform (FFT) on the radar cube; applying a constant false alarm rate (CFAR) processor to the FFT data; determining a capon gradient; forming a 5-dimensional feature space based on the capon gradient; and conducting an optimization of SVM.
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公开(公告)号：US08766855B2
公开(公告)日：2014-07-01
申请号：US13177756
申请日：2011-07-07
IPC分类号： H01Q13/08
CPC分类号： H01Q13/106
摘要： A microstrip-fed antenna is disclosed having a first dielectric substrate and a second dielectric substrate. The second dielectric substrate is disposed on the first dielectric substrate and the first dielectric substrate has a relative permittivity greater than or equal to the second dielectric substrate. The antenna further includes a microstrip line formed in the second dielectric substrate and a metal layer formed in the second dielectric substrate. The metal layer is positioned between the microstrip line and the first dielectric substrate and includes a slot.
摘要翻译： 公开了一种具有第一电介质基板和第二电介质基板的微带馈电天线。 第二电介质基板设置在第一电介质基板上，第一电介质基板的相对介电常数大于或等于第二电介质基板。 天线还包括形成在第二电介质基板中的微带线和形成在第二电介质基板中的金属层。 金属层位于微带线和第一电介质基板之间，并且包括槽。
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公开(公告)号：US20090231204A1
公开(公告)日：2009-09-17
申请号：US12329261
申请日：2008-12-05
摘要： An antenna and a method for direct matching the antenna to a transceiver is provided. The method includes designing the antenna to directly match an antenna impedance to at least one of an input impedance of the transceiver and an output impedance of the transceiver. The step of designing includes modeling the antenna and the transceiver and implementing an electromagnetic field simulation using a human body phantom model with the antenna to determine the value of an antenna parameter for the antenna model. The antenna for a communication device having a transceiver, includes an antenna element directly coupled with the transceiver having a transmitter and a receiver, an antenna parameter of the antenna element being tuned so that the real part of the impedance of the antenna is maximized, and a plate for optimizing the reactive part of the impedance of the antenna. The impedance of the antenna is directly matched to at least one of an impedance of the transmitter and an impedance of the receiver. The method for antenna design includes providing estimate of a package, designing possible realization(s) of the antenna given the space limitations of the package to realize maximum power transfer around the head, for a given design of LNA and PA, generating power efficiency maps for all possible bias realizations versus all possible impedance values of the antenna, and modifying the antenna design in order to maximize the overall link efficiency.
摘要翻译： 提供了天线和用于将天线直接匹配到收发器的方法。 该方法包括设计天线以将天线阻抗直接匹配到收发器的输入阻抗和收发器的输出阻抗中的至少一个。 设计步骤包括对天线和收发器进行建模，并使用具有天线的人体模型模型实现电磁场模拟，以确定天线模型的天线参数的值。 用于具有收发器的通信设备的天线包括与收发机直接耦合的天线元件，具有发射机和接收机，天线元件的天线参数被调谐以使天线的实际阻抗最大化;以及 用于优化天线的阻抗的反应部分的板。 天线的阻抗与发射机的阻抗和接收机的阻抗中的至少一个直接匹配。 天线设计方法包括提供封装的估计，在给定封装的空间限制的情况下设计天线的可能实现，以实现针对LNA和PA的给定设计的头部周围的最大功率传输，产生功率效率图 对于所有可能的偏置实现与天线的所有可能的阻抗值，以及修改天线设计以便最大化整体链路效率。
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公开(公告)号：US07463197B2
公开(公告)日：2008-12-09
申请号：US11252162
申请日：2005-10-17
IPC分类号： H01Q1/38
CPC分类号： H01Q9/0407 , H01Q5/35 , H01Q9/0428 , H01Q9/0442
摘要： A multi-band antenna for multi-band radio frequency telecommunications. The multi-band antenna includes a conductive patch separated from a ground plane by a dielectric material. A slot pattern formed in the conductive patch defines a perimeter substantially surrounding two feed pins and arranged symmetrically about a center line. The slot pattern includes one or more inwardly extending arms projected along axes that pass between the two feed pins. The axes may be parallel to the center line. The slot pattern may be arranged using folded slots. In one embodiment, circular polarization is realized at GPS frequency by using one feed pin and linear or circular polarization is realized by using one or two feed pins for other bands. The feed pins may be controlled independently without a fixed phase and amplitude arrangement necessary to achieve a fixed polarization (linear, circular, or elliptical), which allows for adaptive pattern and polarization agility.
摘要翻译： 一种用于多频段射频通信的多频带天线。 多频带天线包括通过电介质材料与接地平面分离的导电贴片。 形成在导电贴片中的槽图形限定了基本上围绕两个进给销的周边，并围绕中心线对称地布置。 狭槽图案包括一个或多个向内延伸的臂，其沿着穿过两个进给销之间的轴线突出。 轴可以平行于中心线。 槽形图案可以使用折叠槽布置。 在一个实施例中，通过使用一个馈送引脚在GPS频率处实现圆偏振，并且通过使用一个或两个馈送引脚用于其它频带来实现线性或圆偏振。 可以独立地控制馈送引脚，而不需要固定的相位和幅度布置来实现固定偏振（线性，圆形或椭圆形），这允许自适应图案和极化敏捷性。
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