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公开(公告)号：US07054593B2
公开(公告)日：2006-05-30
申请号：US09884555
申请日：2001-06-19
IPC分类号： H04B7/185
CPC分类号： H04B7/18506 , H04B7/18508 , H04B7/18513 , H04W52/08 , H04W52/283
摘要： A system and method for managing access to a satellite-based transponder by a plurality of aircraft each having a mobile radio frequency (RF) system. The system employs a ground-based, central control system for managing access to the satellite-based transponder so that the aggregate power spectral density (PSD) of the RF signals of all the mobile systems does not exceed, at any time, limits established by regulatory agencies to prevent interference between satellite systems. This is accomplished by a dual control loop arrangement for monitoring the signal-to-noise ratio (Eb/No) of the RF signal transmitted by the satellite-based transponder. A ground-based control loop is used whereby a ground-based central controller monitors the Eb/No and transmits commands to the aircraft (via the satellite transponder) to maintain the Eb/No of the transmitted signal within a predetermined range. A fast scan angle compensation is used by the mobile system of the aircraft to implement another control loop to further adjust the transmit power. This control loop maintains the Eb/No of the signal transmitted to the satellite-based transponder at the commanded level inbetween updates from the ground-based central controller.
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12.发明授权Ultra-high speed light activated microwave switch/modulation using photoreactive effect 失效超高速光激活微波开关/调制采用光反应效应
公开(公告)号：US5055810A
公开(公告)日：1991-10-08
申请号：US576140
申请日：1990-08-29
IPC分类号： H01L31/108 , H01P1/15 , H04B10/152
CPC分类号： H01L31/108 , H01P1/15 , H04B2210/006
摘要： The RF/microwave switch/modulator uses an optically controlled diode 20. The reactance of the diode may be varied by varying the illumination intensity. In this fashion, the photodiode in conjunction with an external circuit can switch or modulate a microwave signal by varying the reactance of the diode using a laser light source or the like. The bias voltage may be varied to electronically tune the diode so that the microwave frequency of operation can be electronically controlled.
摘要翻译： RF /微波开关/调制器使用光控二极管20.可以通过改变照明强度来改变二极管的电抗。 以这种方式，与外部电路结合的光电二极管可以通过使用激光光源等改变二极管的电抗来切换或调制微波信号。 可以改变偏置电压以电子调谐二极管，使得微波操作频率可以被电子控制。
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公开(公告)号：US07997005B2
公开(公告)日：2011-08-16
申请号：US12251668
申请日：2008-10-15
IPC分类号： F26B21/00
CPC分类号： H01Q1/002
摘要： A blower system to remove precipitation from an antenna may include a blower air plenum extending substantially completely along one side of the antenna. A vent is in communication with the blower air plenum and extends substantially completely along the one side of the antenna to direct an airstream across a surface of the antenna to remove precipitation from the antenna. The vent may include a contour to conform to a contour of the one side of the antenna. The blower system may also include an air compressor to force air into the blower air plenum and out the vent to form the airstream flowing across the surface of the antenna.
摘要翻译： 用于从天线去除沉淀物的鼓风机系统可以包括基本上完全沿着天线的一侧延伸的鼓风机空气室。 排气口与鼓风机空气通风室连通，并且沿着天线的一侧基本上完全延伸，以引导空气流穿过天线的表面，以消除天线的沉淀。 通风口可以包括符合天线一侧轮廓的轮廓。 鼓风机系统还可以包括空气压缩机，以迫使空气进入鼓风机空气通风室并排出通风口以形成流过天线表面的气流。
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14.发明申请METHOD AND APPARATUS FOR BI-DIRECTIONAL DATA SERVICES AND LIVE TELEVISION PROGRAMMING TO MOBILE PLATFORMS 审中-公开用于双向数据服务的方法和装置以及移动平台的实时电视编程公开(公告)号：US20090080368A1
公开(公告)日：2009-03-26
申请号：US12272299
申请日：2008-11-17
申请人： Greg A. Bengeult , Jeffrey P. Harrang , William R. Richards , Michael G. Lynch , Michael de La Chapelle , Paulus J. Martens , Ronald S. Carson , Richard D. Williams, II , Daniel F. Miller , Geoffrey O. White , George Fitzsimmons , Russell Berkheimer , Robert P. Higgins , Arthur F. Morrison
发明人： Greg A. Bengeult , Jeffrey P. Harrang , William R. Richards , Michael G. Lynch , Michael de La Chapelle , Paulus J. Martens , Ronald S. Carson , Richard D. Williams, II , Daniel F. Miller , Geoffrey O. White , George Fitzsimmons , Russell Berkheimer , Robert P. Higgins , Arthur F. Morrison
IPC分类号： H04B7/185
CPC分类号： H04N7/173 , H04B7/18508 , H04N7/147 , H04N7/20 , H04N21/2146 , H04N21/2187 , H04N21/2543 , H04N21/4126 , H04N21/6143
摘要： A system for bi-directional data content transfer between a plurality of mobile platforms, such as aircraft or cruise ships, and a ground-based control segment. The system includes the ground-based control segment, a space segment and a mobile system disposed on each mobile platform. The ground-based control segment includes an antenna which is used to transmit encoded RF signals representative of data content to the space segment. The space segment includes a plurality of satellite transponders, with one of the transponders being designated by the ground-based control segment to transpond the encoded RF signals to the mobile system. The mobile system includes steerable receive and transmit antennas. The receive antenna receives the encoded RF signals from the satellite transponder, which are thereafter decoded, demodulated, D/A converted by a communications subsystem and transmitted to a server. The server filters off that data content not requested by any occupants on the mobile system. A local area network (LAN) receives the remaining data content and provides same to individual users on the mobile platform in accordance with previously submitted programming requests or data input by the users at access stations associated independently with each user. The transmit antenna is used to transmit data content from laptop computers, PDAs or other user electronic devices coupled to the access stations back to the designated satellite transponder. The satellite transponder then transponds the data back to the antenna of the ground-based control segment.
摘要翻译： 用于在诸如飞机或游轮之类的多个移动平台和基于地面的控制段之间进行双向数据内容传送的系统。 该系统包括设置在每个移动平台上的基于地面的控制段，空间段和移动系统。 基于地面的控制段包括用于将表示数据内容的编码RF信号发送到空间段的天线。 空间段包括多个卫星转发器，其中一个应答器由基于地面的控制段指定，以将编码的RF信号转发到移动系统。 移动系统包括可引导的接收和发射天线。 接收天线接收来自卫星转发器的经编码的RF信号，其随后由通信子系统进行解码，解调，D / A转换并发送到服务器。 服务器过滤掉移动系统上任何乘客未请求的数据内容。 局域网（LAN）接收剩余的数据内容，并根据先前提交的编程请求或与每个用户独立关联的接入站处的用户输入的数据向移动平台上的个别用户提供相同的数据。 发射天线用于将耦合到接入站的膝上型计算机，PDA或其他用户电子设备的数据内容传送回指定的卫星转发器。 然后，卫星转发器将数据转发回地面控制段的天线。
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公开(公告)号：US20060270354A1
公开(公告)日：2006-11-30
申请号：US11440301
申请日：2006-05-24
CPC分类号： H04B7/18506 , H01Q1/28
摘要： A system and method for selectively enabling and disabling wireless connectivity between cellular or PDA users on-board commercial aircraft having a shielded fuselage, and remotely located wireless access points, while the aircraft is at an airport or airfield. The system and method does not require access to an on-board LAN system of the aircraft. The system includes one or more antennae disposed in the cabin area of the aircraft that are coupled via an RF switch with an exterior antenna mounted on an exterior of the fuselage. The RF switch is controlled by a switch control subsystem, and enables or disables communication between the interior antennae and the exterior antenna. The exterior antenna is connected to the switch via a conductor that extends through the shielding of the aircraft. When the RF switch is in the closed position, cellular or PDA users can connect through the interior antennae and the exterior antenna directly to remotely located wireless access points.
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公开(公告)号：US20060229070A1
公开(公告)日：2006-10-12
申请号：US11184712
申请日：2005-07-19
IPC分类号： H04Q7/20
CPC分类号： H01Q25/00 , H01Q1/28 , H01Q1/3225 , H01Q3/26 , H04B7/18506 , H04W36/08 , H04W36/18 , H04W84/06
摘要： A system and method for implementing soft handoffs in a cellular communications system on a mobile platform. The system employs an antenna controller in communication with a beam forming network that generates two independently aimable lobes from a single beam. The single beam is radiated by a phased array antenna on the mobile platform. In an Air-to-Ground implementation involving an aircraft, a base transceiver station (BTS) look-up position table is utilized to provide the locations of a plurality of BTS sites within a given region that the aircraft is traversing. The antenna controller controls the beam forming network to generate dual lobes from the single beam that facilitate making a soft handoff from one BTS site to another. In a ground-based application, one lobe of the beam is used to maintain a communications link with one BTS site while a second lobe of the beam is continuously scanned about a predetermined arc to receive RF signals from other BTS sites and to determine when a new BTS site has become available that will provide a higher quality link than the link presently made with the one BTS site. A soft handoff is then implemented from the one BTS site to the new BTS site.
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公开(公告)号：US5035375A
公开(公告)日：1991-07-30
申请号：US286436
申请日：1988-12-19
CPC分类号： F41G7/2266 , F41G7/2286 , F41G7/2293 , F41G7/32
摘要： A fiber optic radar guided missile system 10 is disclosed which includes a radar receiver 12 disposed in a missile for receiving radar reflections and providing a first optical signal in response thereto. An optical receiver 14 is disposed at a launcher for receiving the first optical signal and for providing a set of electrical signals in response thereto. A fiber optic link 32 is connected between the missile and the launcher for communicating the first optical signal from the radar receiver 12 to the optical receiver 14.In a specific embodiment, the invention 10 includes a first system 12 disposed in a missile for receiving radar reflections which includes only an antenna 16 for receiving radar reflections, a radar seeker 18 for providing a first electrical in response to the received radar reflections, and a first fiber optic transmitter 26 for converting the first electrical signal into a first optical signal. An optical receiver 14 is located at a launcher for receiving the first optical signal and for providing a set of electrical signals in response thereto. The optical receiver 14 at the launcher includes a first fiber optic receiver 48 for converting the first optical signal into a second electrical signal and a signal processor 56 for processing the second electrical signal and providing radar output data. A fiber optic link 32 is provided for communicating the first optical signal from the radar receiver 12 to the optical receiver 114 at the launcher and missile commands from the launcher to the missile.
摘要翻译： 公开了一种光纤雷达制导导弹系统10，其包括设置在用于接收雷达反射并且响应于此的第一光信号的导弹中的雷达接收器12。 光接收器14设置在发射器处，用于接收第一光信号并响应于此提供一组电信号。 导弹和发射器之间连接有光纤链路32，用于将第一光信号从雷达接收机12传送到光接收机14.在具体实施例中，本发明10包括设置在用于接收雷达的导弹中的第一系统12 仅包括用于接收雷达反射的天线16的反射，用于响应于所接收的雷达反射而提供第一电的雷达探测器18和用于将第一电信号转换为第一光信号的第一光纤发射器26。 光接收器14位于发射器处，用于接收第一光信号并响应于此提供一组电信号。 发射器处的光接收器14包括用于将第一光信号转换成第二电信号的第一光纤接收器48和用于处理第二电信号并提供雷达输出数据的信号处理器56。 提供光纤链路32，用于在发射器处将第一光信号从雷达接收机12传送到光接收器114，并从发射器向导弹发射导弹命令。
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公开(公告)号：US5029306A
公开(公告)日：1991-07-02
申请号：US392048
申请日：1989-08-10
CPC分类号： H01Q3/2676 , H01Q1/247
摘要： A phased-array antenna (14) is disclosed including modules (12) that respond to optic signals provided by a central processor (16) vai an optic feed network (18). In a transmit mode of operation, the central processor provides optic transmit signals to the modules, controlling the phase and attenuation of the various signals to accomplish the desired steering of the antenna beam produced by the array. A mixer or avalanche photodiode (42) in each module provides suitable optical-to-RF power conversion for the input signal to allow antenna elements (44) in the module to radiate the desired electromagnetic beam. During a receive interval, a received electric signal produced by the antenna elements is combined by the mixer with a local oscillator frequency optic signal applied to the mixer by the central processor. As a result, the RF frequency of the received signal is reduced to an IF frequency for low-cost amplification by an amplifier (52). A ligh source (48) then transmits the received signal back to the central processor for interpretation. The resultant arrangement advantageously reduces the complexity and expense of the various modules in the array.
摘要翻译： 公开了一种相控阵天线（14），其包括响应由通过光纤馈电网络（18）的中央处理器（16）提供的光信号的模块（12）。 在发射操作模式中，中央处理器向模块提供光学发射信号，控制各种信号的相位和衰减，以实现由阵列产生的天线波束的理想导向。 每个模块中的混合器或雪崩光电二极管（42）为输入信号提供合适的光 - 射频功率转换，以允许模块中的天线元件（44）辐射所需的电磁波束。 在接收间隔期间，由天线元件产生的接收到的电信号由混频器与由中央处理器施加到混频器的本地振荡器频率光信号组合。 结果，由放大器（52）将接收信号的RF频率降低到用于低成本放大的IF频率。 然后，灯源（48）将所接收的信号发送回中央处理器进行解释。 所得到的装置有利地降低了阵列中各种模块的复杂性和费用。
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19.发明授权公开(公告)号：US08359026B2
公开(公告)日：2013-01-22
申请号：US11440301
申请日：2006-05-24
IPC分类号： H04W4/00
CPC分类号： H04B7/18506 , H01Q1/28
摘要： A system and method for selectively enabling and disabling wireless connectivity between cellular or PDA users on-board commercial aircraft having a shielded fuselage, and remotely located wireless access points, while the aircraft is at an airport or airfield. The system and method does not require access to an on-board LAN system of the aircraft. The system includes one or more antennae disposed in the cabin area of the aircraft that are coupled via an RF switch with an exterior antenna mounted on an exterior of the fuselage. The RF switch is controlled by a switch control subsystem, and enables or disables communication between the interior antennae and the exterior antenna. The exterior antenna is connected to the switch via a conductor that extends through the shielding of the aircraft. When the RF switch is in the closed position, cellular or PDA users can connect through the interior antennae and the exterior antenna directly to remotely located wireless access points.
摘要翻译： 一种用于在飞机在机场或机场的同时，在具有屏蔽机身的蜂窝或PDA用户车载商用飞机和位于远程位置的无线接入点之间选择性地启用和禁用无线连接的系统和方法。 该系统和方法不需要访问飞机的车载LAN系统。 该系统包括一个或多个天线，其设置在飞行器的机舱区域中，该天线通过RF开关与安装在机身外部的外部天线耦合。 RF开关由开关控制子系统控制，并启用或禁用内部天线与外部天线之间的通信。 外部天线通过延伸穿过飞机屏蔽的导体连接到开关。 当RF开关处于关闭位置时，蜂窝或PDA用户可以通过内部天线和外部天线直接连接到远程位置的无线接入点。
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公开(公告)号：US08054224B1
公开(公告)日：2011-11-08
申请号：US12913093
申请日：2010-10-27
IPC分类号： H01Q3/00
摘要： A method and apparatus for creating an antenna system. A configuration for a plurality of antenna cells is selected for an antenna in the antenna system. Each antenna cell in the plurality of antenna cells comprises a plurality of antenna elements having a symmetric arrangement. A portion of antenna elements in the plurality of antenna elements for each antenna cell in the plurality of antenna cells on a substrate is selected to transmit electromagnetic waves.
摘要翻译： 一种用于创建天线系统的方法和装置。 在天线系统中为天线选择多个天线小区的配置。 多个天线单元中的每个天线单元包括具有对称布置的多个天线元件。 选择在基板上的多个天线单元中的每个天线单元的多个天线元件中的天线元件的一部分，以发射电磁波。
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