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1. 发明授权

US06570536B2 Communications system 有权
公开(公告)号：US06570536B2
公开(公告)日：2003-05-27
申请号：US09899821
申请日：2001-07-09
申请人： Stephen H. Smith
发明人： Stephen H. Smith
IPC分类号： H01Q2106
CPC分类号： H04B14/008 , H04B7/10 , H04B10/532
摘要： A communications system in which a communications channel is defined at least in part by an electromagnetic wave having a carrier frequency and an electric field vector, the extremity or terminus of which traces a non-linear periodic path at a rotation frequency less than the carrier frequency and greater than zero from the perspective of an observer looking into the axis of propagation of the wave. The transmitter of the communications system launches a wave having such characteristics and modulated with information in a suitable manner. The receiver of the communications system is sensitive to the periodic path and rotation frequency. The combination of the periodic path and the carrier frequency provides selectivity that can be used to define multiple communications channels.

2. 发明授权

US06351237B1 Polarization and angular diversity among antenna beams 有权
标题翻译：天线波束之间的极化和角度分集
公开(公告)号：US06351237B1
公开(公告)日：2002-02-26
申请号：US09450318
申请日：1999-11-29
申请人： Gary A. Martek , Sheldon K. Meredith , Douglas O. Reudink , Mark Reudink , Martin J. Feuerstein
发明人： Gary A. Martek , Sheldon K. Meredith , Douglas O. Reudink , Mark Reudink , Martin J. Feuerstein
IPC分类号： H01Q2106
CPC分类号： H01Q3/22 , H01Q3/2682 , H01Q3/40 , H01Q21/28 , H04B7/10
摘要： A receiving system 100 is disclosed which includes at least one antenna 101 providing a plurality of antenna beams providing signal diversity between communicated signals. A first processing branch 103 is included for processing a first plurality of signals appearing within a first plurality of the antenna beams. The first processing branch 103 includes a plurality of signal paths, some of which include delays 105, each receiving a one of the first plurality of signals from a corresponding one of the first plurality of antenna beams. Delays 105 apply a predetermined amount of delay proportionate to the corresponding one of the beams. First processing branch 103 further includes a combiner 106 for combining the first plurality of signals after output from the plurality of signal paths. A second processing branch 104 is provided for processing a second plurality of signals appearing within a second plurality of the antenna beams. Second processing branch 104 includes a plurality of signal paths, some of which include delays 105, each receiving one of the second plurality of signals from a corresponding one of the second plurality of antenna beams. Delays 105 applying a pre-selected amount of delay to the corresponding one of the beams. Second processing branch 104 further includes a combiner 106 for combining the second plurality of signals after output from the plurality of signal paths. Finally, a radio 102 is provided having a first port coupled to an output of first processing branch 103 and a second port coupled to a second processing branch 104.
摘要翻译：公开了一种接收系统100，其包括提供多个天线波束的至少一个天线101，所述天线波束在通信信号之间提供信号分集。包括第一处理分支103用于处理出现在第一多个天线波束内的第一多个信号。第一处理分支103包括多个信号路径，其中一些信号路径包括延迟器105，每个接收来自第一多个天线波束中对应的天线波束的第一多个信号中的一个。延迟105应用相应的一个光束成比例的预定量的延迟。第一处理分支103还包括组合器106，用于在从多个信号路径输出之后组合第一多个信号。提供第二处理分支104用于处理出现在第二多个天线波束内的第二多个信号。第二处理分支104包括多个信号路径，其中一些信号路径包括延迟器105，每个接收来自第二多个天线波束中对应的一个的第二多个信号中的一个信号。延迟105将预选量的延迟应用于对应的一个波束。第二处理分支104还包括组合器106，用于在从多个信号路径输出之后组合第二多个信号。最后，提供无线电设备102，其具有耦合到第一处理分支103的输出的第一端口和耦合到第二处理分支104的第二端口。

3. 发明授权

US06271790B1 Communication system 失效
公开(公告)号：US06271790B1
公开(公告)日：2001-08-07
申请号：US09064525
申请日：1998-04-23
申请人： Stephen H. Smith
发明人： Stephen H. Smith
IPC分类号： H01Q2106
摘要： A communications system in which a communications channel is defined at least in part by an electromagnetic wave having a carrier frequency and an electric field vector, the extremity or terminus of which traces a non-linear periodic path at a rotation frequency less than the carrier frequency and greater than zero from the perspective of an observer looking into the axis of propagation of the wave. The transmitter of the communications system launches a wave having such characteristics and modulated with information in a suitable manner. The receiver of the communications system is sensitive to the periodic path and rotation frequency. The combination of the periodic path and the carrier frequency provides selectivity that can be used to define multiple communications channels.

4. 发明授权

US06646599B1 Open loop array antenna beam steering architecture 失效
标题翻译：开环阵列天线波束转向架构
公开(公告)号：US06646599B1
公开(公告)日：2003-11-11
申请号：US10097408
申请日：2002-03-15
申请人： Martin J. Apa , Joseph Cikalo , William L. High , Mitchell J. Sparrow
发明人： Martin J. Apa , Joseph Cikalo , William L. High , Mitchell J. Sparrow
IPC分类号： H01Q2106
CPC分类号： H01Q21/0025 , H01Q21/245
摘要： A solid state active aperture high power polarization agile transmitter, either single or dual polarization, employing nonreciprocal antenna elements, designed such that it can be used in an Electronic Warfare (EW) system that is more efficient and less expensive. Antenna beam steering is accomplished with variable phase shifters that are used to set the RF signal phase of each element. The beam steering function is implemented with a hardware architecture where the phase shifters are built-in ahead of the power amplifiers such that these low power phase shifters impart phase delays to low power signals without wasting RF signal power and hence improving efficiency. These power transmitter devices are also more reliable, lighter in weight and smaller in size.
摘要翻译：固态有源孔径高功率极化敏捷发射机，单或双极化，采用非互易天线元件，设计使其可用于更有效率和更低成本的电子战（EW）系统。天线波束转向由可变移相器实现，用于设置每个元件的RF信号相位。光束转向功能是以硬件架构实现的，其中移相器内置在功率放大器之前，使得这些低功率移相器将相位延迟赋予低功率信号，而不浪费RF信号功率并因此提高效率。这些发射机装置也更可靠，重量更轻，尺寸更小。

5. 发明授权

US06545648B1 Adaptive control of RF receiving antenna system for digital television 失效
标题翻译：数字电视射频接收天线系统的自适应控制
公开(公告)号：US06545648B1
公开(公告)日：2003-04-08
申请号：US09606930
申请日：2000-06-29
申请人： Robert J. Plonka
发明人： Robert J. Plonka
IPC分类号： H01Q2106
CPC分类号： H01Q3/2682 , H01Q21/245 , H01Q21/26 , H04B7/10
摘要： An antenna system for receiving horizontal and vertical components of a transmitted horizontally polarized digital RF signal. The system includes a vertical antenna for primarily receiving vertical components of the RF signal and a horizontal antenna primarily for receiving the horizontal components of the RF signal. An adjustable time delay changer is provided for adjusting any time delay of one of the components. A combiner combines the components to obtain therefrom a combined RF signal for application to an RF utilization means. The combined RF signal is a digital signal exhibiting a bit error rate dependent upon the value of the vertical component. An RF decoder decodes the bit error rate and provides a bit error rate signal having a value that varies as a function of the value of the bit error rate. An adaptive controller responds to the bit error rate signal and adjusts the time delay changer in a direction to decrease the value of said bit error rate signal.
摘要翻译：一种用于接收透射水平极化数字RF信号的水平和垂直分量的天线系统。该系统包括用于主要接收RF信号的垂直分量的垂直天线和主要用于接收RF信号的水平分量的水平天线。提供可调节的时间延迟变换器来调节其中一个部件的任何时间延迟。组合器组合组件以从其获得用于应用于RF利用装置的组合RF信号。组合的RF信号是表现出取决于垂直分量的值的误码率的数字信号。 RF解码器解码误码率，并提供具有随着误码率的值变化的值的误码率信号。自适应控制器响应误码率信号并且在一个方向上调整时间延迟变换器以减小所述误比特率信号的值。

6. 发明授权

US06486828B1 Adaptive array antenna nulling 失效
标题翻译：自适应阵列天线归零
公开(公告)号：US06486828B1
公开(公告)日：2002-11-26
申请号：US09626203
申请日：2000-07-26
申请人： Charles R. Cahn , Donald Leimer
发明人： Charles R. Cahn , Donald Leimer
IPC分类号： H01Q2106
CPC分类号： H04K3/228 , E21B43/26 , H01Q3/2611 , H01Q21/24 , H04B7/0857 , H04B7/086 , H04B7/10
摘要： An adaptive antenna array employs selective polarization nulling and spatial nulling to receive desired signals in the presence of jamming signals. The desired signals have the same circular polarization, and the array includes at least one antenna element having an opposite circular polarization to null jamming signals having an opposite circular polarization. A gain pattern for the array is selected to minimize signals having the same circular, or linear, polarization. The gain pattern is computed based on jamming signals received when no desired signals are transmitted, or selected based on measured desired signals.
摘要翻译：自适应天线阵列在存在干扰信号的情况下采用选择性偏振归零和空间归零来接收期望的信号。期望的信号具有相同的圆偏振，并且该阵列包括至少一个天线元件，其具有相反的圆偏振，以使具有相反圆偏振的干扰信号为零。选择阵列的增益图案以最小化具有相同圆形或线性偏振的信号。基于当不需要的信号被发送时所接收的干扰信号，或者基于所测量的所需信号来选择增益模式。

7. 发明授权

US06400316B1 Radiation receiving apparatus 有权
标题翻译：辐射接收装置
公开(公告)号：US06400316B1
公开(公告)日：2002-06-04
申请号：US09831554
申请日：2001-08-13
申请人： Balbir Kumar
发明人： Balbir Kumar
IPC分类号： H01Q2106
CPC分类号： G01N22/00 , H04B7/10
摘要： A microwave receiving antenna system (30) is described which is used to determine an originating direction of microwave radiation. The system has a birefringement phase plate (34) which splits radiation incident on it into two components which undergo a differential phase delay as they pass through it. The amount of differential phase delay induced varies with angular position around the phase plate (34) from 0 at an angular position of 0° to &lgr; an angular position of 360°. By determining the differential phase delay (assuming a previously existing relationship) the originating direction of the radiation can be determined.
摘要翻译：描述了微波接收天线系统（30），其用于确定微波辐射的始发方向。该系统具有双折射相位板（34），其将入射到其上的辐射分裂成两个分量，它们经过差分相位延迟。引起的差分相位延迟的量随着相位板（34）周围的角位置从0°的角度位置变化到360°的角位置。通过确定差分相位延迟（假设先前存在的关系）可以确定辐射的始发方向。

8. 发明授权

US06252546B1 Method and apparatus for processing multipath reflection effects in timing systems 有权
标题翻译：在定时系统中处理多径反射效应的方法和装置
公开(公告)号：US06252546B1
公开(公告)日：2001-06-26
申请号：US09692006
申请日：2000-10-19
申请人： Gary R. Lennen , Scott R. Smith
发明人： Gary R. Lennen , Scott R. Smith
IPC分类号： H01Q2106
CPC分类号： G01S19/22 , G01S19/428 , H01Q9/0435 , H01Q21/24 , H04B7/02 , H04B7/10 , H04B7/2125
摘要： A method and apparatus for processing multipath reflection effects in timing systems is disclosed in which a determination is made of whether a received signal is a reflected signal. A detector provides from an input signal a pair of signals representative of whether the input signal contained right-hand circularly polarized and left-hand circularly polarized components. The representative signals are separately processed in synchronized logic circuits to determine relative power levels. The power levels are compared to determine the nature of the dominant polarization of the input signal.
摘要翻译：公开了一种在定时系统中处理多径反射效应的方法和装置，其中确定接收信号是否是反射信号。检测器从输入信号提供表示输入信号是否包含右旋圆极化和左旋圆极化分量的一对信号。代表信号在同步逻辑电路中分开处理，以确定相对功率电平。比较功率电平以确定输入信号的主极化的性质。

9. 发明授权

US06195043B1 AOA estimation and polarization induced phase correction using a conformal array of titled antenna elements 有权
标题翻译：使用倾斜天线元件的共形阵列的AOA估计和极化诱导相位校正
公开(公告)号：US06195043B1
公开(公告)日：2001-02-27
申请号：US09311139
申请日：1999-05-13
申请人： Teodoro Azzarelli , Paul Kwon , Ephraim Mendelovicz
发明人： Teodoro Azzarelli , Paul Kwon , Ephraim Mendelovicz
IPC分类号： H01Q2106
CPC分类号： G01S3/46 , G01S3/06 , H01Q21/205 , H01Q25/00
摘要： An apparatus and method for determining the angles-of-arrival and the polarization states of incoming RF signals of unknown polarization using five or more RF sensing antenna elements of differing yet known orientations of polarization. The apparatus includes an array of broad gain, substantially identical, RF sensing antenna elements of differing yet known orientations of polarization, an antenna element selection network, RF receiver channels, processing means for determining uncorrected phase differences from received RF signal phases for pairs of antennas, processing means for determining received signal powers, processing means for determining from RF signal powers corrections to the phase difference errors caused by polarization diversity between pairs of antennas, processing means for correcting uncorrected phase differences with determined phase difference corrections, processing means for determining incoming RF signal frequencies, processing means for determining ambiguous and unambiguous angles-of-arrival of incoming RF signals and processing means for determining the polarization states of incoming RF signals.
摘要翻译：一种使用五个或更多个不同但已知的偏振取向的RF感测天线元件来确定未知偏振的输入RF信号的到达角和偏振态的装置和方法。该装置包括具有不同但已知的偏振取向的广泛增益，基本相同的RF感测天线元件的阵列，天线元件选择网络，RF接收器通道，用于从接收的用于天线对的天线的RF信号相位确定未校正的相位差的处理装置用于确定接收信号功率的处理装置，用于根据由天线对之间的极化分集引起的相位差误差的RF信号功率进行确定的处理装置，用已确定的相位差校正校正未校正的相位差的处理装置，用于确定输入的处理装置 RF信号频率，用于确定输入RF信号的到达不明确和明确的角度的处理装置和用于确定输入RF信号的偏振状态的处理装置。

10. 发明授权

US06703975B1 Wideband perimeter configured interferometric direction finding antenna array 失效
标题翻译：宽带周边配置干涉测向天线阵列
公开(公告)号：US06703975B1
公开(公告)日：2004-03-09
申请号：US10395132
申请日：2003-03-24
申请人： Will Freeman
发明人： Will Freeman
IPC分类号： H01Q2106
CPC分类号： H01Q1/286 , H01Q13/085 , H01Q13/10 , H01Q13/12 , H01Q21/064 , H01Q21/28 , H01Q25/001 , H04B7/10
摘要： An antenna array includes two pairs of linear polarized antennas mounted to a perimeter portion of an airframe with one pair having a polarization normal to the airframe and the other pair having a polarization tangential to the airframe. The antenna array eliminates the cross-polarization problem of an electromagnetic wave incident upon the array when using linear polarized perimeter mounted antennas.
摘要翻译：天线阵列包括安装到机身的周边部分的两对线性极化天线，其中一对具有与机身垂直的极化，另一对具有与机身相切的极化。天线阵列消除了使用线性极化周边安装天线时入射到阵列上的电磁波的交叉极化问题。

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