专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20040223139A1 Method for determining the spatial location and position of a reflector rod in relation to a marked ground point 有权
标题翻译：用于确定反射器杆相对于标记地面点的空间位置和位置的方法
公开(公告)号：US20040223139A1
公开(公告)日：2004-11-11
申请号：US10819419
申请日：2004-04-07
发明人： Michael Vogel
IPC分类号： G01C001/00 , G01B011/26 , H01Q019/00
CPC分类号： G01C15/002 , G01S5/163
摘要： A method for determining the position of a reflector rod provided with a reflector, using a sighting beam emitted from a base station is disclosed. The reflector and a first position sensor define a first coordinate system. The direction of the sighting beam to the reflector is measured from the base station in a second coordinate system, using horizontal and vertical angles. A second position sensor arranged in the direction of the sighting axis of the base station determines the location and orientation of the reflector rod. Measurement data in the first coordinate system is generated to determine the spatial orientation of the reflector relative to the light beam. Imaging optics are used to image the reflector on the second position sensor. The position of the reflector in the second coordinate system and the distance from the base station to the reflector are determined.
摘要翻译：公开了一种使用从基站发射的瞄准光束来确定设置有反射器的反射杆的位置的方法。反射器和第一位置传感器限定第一坐标系。使用水平和垂直的角度，从基站在第二坐标系中测量瞄准光束到反射器的方向。沿着基站的瞄准轴的方向布置的第二位置传感器确定反射器杆的位置和取向。生成第一坐标系中的测量数据，以确定反射器相对于光束的空间取向。成像光学器件用于对第二位置传感器上的反射器进行成像。确定反射器在第二坐标系中的位置以及从基站到反射器的距离。

2. 发明申请

US20020171599A1 FOLDABLE DIRECTIONAL ANTENNA 有权
标题翻译：可折叠的方向天线
公开(公告)号：US20020171599A1
公开(公告)日：2002-11-21
申请号：US09861296
申请日：2001-05-18
发明人： William Robert Palmer , Griffin K. Gothard , Christopher A. Snyder
IPC分类号： H01Q019/00 , H01Q019/10
CPC分类号： H01Q9/28 , H01Q1/08 , H01Q1/241 , H01Q3/46 , H01Q19/30 , H01Q21/062 , H01Q21/205
摘要： A foldable antenna includes a plurality of passive elements radially spaced apart from a center active element. The radial passive elements are joined to the active element to create a deformable union. In this way, the surrounding passive elements can be folded toward the midplane of the antenna array to create a relatively compact stored configuration.
摘要翻译：可折叠天线包括与中心有源元件径向间隔开的多个无源元件。径向无源元件连接到有源元件以产生可变形的接头。以这种方式，可以将周围的无源元件朝向天线阵列的中平面折叠以产生相对紧凑的存储配置。

3. 发明申请

US20020167456A1 Reconfigurable artificial magnetic conductor using voltage controlled capacitors with coplanar resistive biasing network 失效
标题翻译：使用具有共面电阻偏置网络的压控电容器可重构人造磁导体
公开(公告)号：US20020167456A1
公开(公告)日：2002-11-14
申请号：US09845393
申请日：2001-04-30
发明人： William E. McKinzie III
IPC分类号： H01Q019/00 , H01Q015/02 , H01Q015/24
CPC分类号： H01Q15/0066 , H01Q3/46 , H01Q15/008
摘要： A frequency reconfigurable artificial magnetic conductor (AMC) includes a ground plane, a spacer layer disposed adjacent the ground plane and a plurality of vias in electrical contact with the ground plane and extending from a surface of the ground plane in direction of the spacer layer. The AMC further includes a frequency selective surface (FSS) disposed on the spacer layer and including a periodic pattern of bias node patches alternating with ground node patches, the ground node patches being in electrical contact with respective vias of the plurality of vias, and components between selected bias node patches and ground node patches, the components having a capacitance which is variable in response to a bias voltage. A network of bias resistors between adjacent bias node patches provides the tuning voltage.
摘要翻译：频率可重构人造磁导体（AMC）包括接地平面，邻近接地平面设置的间隔层和与接地平面电接触并从接地平面的表面沿间隔层的方向延伸的多个通孔。 AMC还包括设置在间隔层上的频率选择表面（FSS），并且包括与接地节点贴片交替的偏置节点贴片的周期性图案，接地节点贴片与多个通孔中的相应通孔电接触，在所选择的偏置节点贴片和接地节点贴片之间，所述元件具有响应偏置电压而变化的电容。相邻偏置节点贴片之间的偏置电阻网络提供调谐电压。

4. 发明申请

US20040164919A1 Apparatus and method for a multi-polarized ground plane beam antenna 有权
标题翻译：多极化地平面波束天线的装置和方法
公开(公告)号：US20040164919A1
公开(公告)日：2004-08-26
申请号：US10787025
申请日：2004-02-25
申请人： WiFi-Plus, Inc.
发明人： Jack Nilsson
IPC分类号： H01Q019/00 , H01Q019/10
CPC分类号： H01Q1/242 , H01Q1/3275 , H01Q9/44 , H01Q9/46
摘要： A ground plane beam antenna for transmitting and/or receiving radio frequency (RF) signals, and a method for constructing same, is disclosed. An embodiment of the antenna comprises at least one parasitic reflector element having a first end and a second end, at least one parasitic director element having a first end and a second end, a multi-polarized driven element positioned co-linearly with and between the at least one reflector element and the at least one director element, and an electrically conductive ground plane. The ground plane is electrically connected to the at least one reflector element and the at least one director element at the second ends, and is electrically isolated from the driven element.
摘要翻译：公开了一种用于发射和/或接收射频（RF）信号的接地平面波束天线及其构造方法。天线的一个实施例包括至少一个具有第一端和第二端的寄生反射器元件，至少一个具有第一端和第二端的寄生导向元件，多偏振驱动元件，其与至少一个反射器元件和至少一个导向元件，以及导电接地平面。所述接地平面在所述第二端处电连接到所述至少一个反射器元件和所述至少一个导向器元件，并且与所述被驱动元件电隔离。

5. 发明申请

US20030184492A1 Dual band phased array employing spatial second harmonics 失效
标题翻译：双频相控阵采用空间二次谐波
公开(公告)号：US20030184492A1
公开(公告)日：2003-10-02
申请号：US10292384
申请日：2002-11-08
申请人： Tantivy Communications, Inc.
发明人： Bing Chiang , Michael J. Lynch , Griffin K. Gothard
IPC分类号： H01Q019/00 , H01Q019/10
CPC分类号： H01Q1/2275 , H01Q1/22 , H01Q1/2258 , H01Q3/242 , H01Q3/446 , H01Q5/357 , H01Q19/108 , H01Q19/30 , H01Q19/32 , H01Q21/205 , H01Q21/30
摘要： A directive antenna operable in multiple frequency bands includes an active antenna element and at least one passive antenna element parasitically coupled to the active antenna element. The passive antenna element(s) have length and spacing substantially optimized to operate at (i) a fundamental frequency associated with the active antenna element and (ii) a higher resonant frequency related to the fundamental frequency. Spatial-harmonic current-distributions of the passive antenna elements are used to create the multiple frequency bands of operation. The directive antenna also includes devices operatively coupled to the passive antenna element(s) to steer an antenna beam formed by applying a signal at the fundamental resonant frequency, higher resonant frequency, or both to the active antenna element to operate in the multiple frequency bands.
摘要翻译：可在多个频带中操作的指示天线包括有源天线元件和至少一个与有源天线元件寄生耦合的无源天线元件。无源天线元件具有基本优化的长度和间隔，以在（i）与有源天线元件相关联的基频和（ii）与基频有关的较高谐振频率下工作。无源天线元件的空间谐波电流分布用于创建多个频带的操作。指导天线还包括可操作地耦合到无源天线元件的装置，以引导通过将基频谐振频率，较高谐振频率或两者的信号施加到有源天线元件而形成的天线波束，以在多个频带。

6. 发明申请

US20030142036A1 Multiband or broadband frequency selective surface 审中-公开
标题翻译：多频段或宽带频率选择表面
公开(公告)号：US20030142036A1
公开(公告)日：2003-07-31
申请号：US10305793
申请日：2002-11-27
发明人： Michael John Wilhelm , Douglas H. Werner , Pingjuan L. Werner , Jeffrey S. Daniels , Lance D. Swann , William L. Warren
IPC分类号： H01Q015/02 , H01Q019/00
CPC分类号： H01Q15/0026 , H01Q1/36 , H01Q1/38
摘要： A frequency selective surface includes a pattern of electromagnetic material formed on a substrate suspendable over a ground plane for reflecting or transmitting electromagnetic waves at one or more particular frequencies. The frequency selective surface may include one or more meandering line inductors and/or one or more interdigitated capacitors formed within the pattern of electromagnetic materials for adjusting the frequencies at which the electromagnetic waves are reflected or transmitted. The frequency selective surface may also or instead include one or more inductors and/or one or more capacitors arranged in series within the pattern of electromagnetic materials to adjust the frequencies at which the electromagnetic waves are reflected or transmitted. In addition, the pattern of electromagnetic materials may be formed within the substrate in such a manner that the frequencies at which the electromagnetic waves are reflected or transmitted are tunable. The elements of the FSS may include lumped passive or active devices.
摘要翻译：频率选择表面包括形成在可在一个或多个特定频率上反射或传输电磁波的接地平面上的衬底上的电磁材料图案。频率选择表面可以包括一个或多个曲折线电感器和/或形成在电磁材料图案内的一个或多个交错电容器，用于调节电磁波被反射或发射的频率。频率选择表面还可以或者替代地包括一个或多个电感器和/或串联在电磁材料图案内的一个或多个电容器，以调节电磁波被反射或传输的频率。此外，电磁材料的图案可以以这样的方式形成在基板内，使得电磁波被反射或透射的频率是可调谐的。 FSS的元件可能包括集中的被动或主动设备。

7. 发明申请

US20030112186A1 Broadband antennas over electronically reconfigurable artificial magnetic conductor surfaces 失效
标题翻译：通过电子可重构人造磁导体表面的宽带天线
公开(公告)号：US20030112186A1
公开(公告)日：2003-06-19
申请号：US10246198
申请日：2002-09-17
发明人： Victor C. Sanchez , William E. McKinzie, III , Rodolfo E. Diaz
IPC分类号： H01Q019/00 , H01Q015/02
CPC分类号： H01Q9/27 , H01Q3/44 , H01Q15/0066 , H01Q15/008
摘要： A low profile antenna system includes an artificial magnetic conductor comprising a frequency selective surface (FSS) having an effective sheet capacitance which is electronically variable to control resonant frequency of the AMC and the resonant frequency of an antenna element positioned adjacent to the FSS.
摘要翻译：低剖面天线系统包括人造磁导体，其包括频率选择表面（FSS），该频率选择表面（FSS）具有电子可变的电流可变以控制AMC的谐振频率和与FSS相邻的天线元件的谐振频率。

8. 发明申请

US20030227417A1 Electromagnetic-field polarization twister 有权
标题翻译：电磁场偏振加捻器
公开(公告)号：US20030227417A1
公开(公告)日：2003-12-11
申请号：US10348044
申请日：2003-01-17
发明人： Errol K. English , Ethan C. Saladin
IPC分类号： H01Q019/00 , H01Q015/02
CPC分类号： H01Q15/248
摘要： An apparatus and method to twist the field polarization of an electromagnetic wave over a desired frequency band is described. In one embodiment, a transmission twister rotates the polarization of a linearly-polarized incident field to produce a transmitted field. In one embodiment, the transmission twister includes a resonant polarization-twisting array between two linearly-polarized arrays. In one embodiment, the transmission twister rotates the polarization by 90 degrees. In one embodiment, the transmission twister produces low reflection of a desired incident polarization. In one embodiment, the transmission twister has a transmission coefficient (with respect to the desired incident field polarization and a correspondingly rotated transmitted field polarization) close to unity.
摘要翻译：描述了在期望频带上扭转电磁波的场极化的装置和方法。在一个实施例中，传输扭转器旋转线性偏振的入射场的偏振以产生透射场。在一个实施例中，传输扭转器包括在两个线性极化阵列之间的共振偏振扭转阵列。在一个实施例中，传输扭矩器将偏振旋转90度。在一个实施例中，传输扭转器产生期望的入射偏振的低反射。在一个实施例中，传输扭转器具有接近于1的传输系数（相对于期望的入射场偏振和相应旋转的透射场偏振）。

9. 发明申请

US20020171597A1 DUAL FREQUENCY SINGLE POLARIZATION FEED NETWORK 有权
标题翻译：双频单极化馈电网络
公开(公告)号：US20020171597A1
公开(公告)日：2002-11-21
申请号：US09860105
申请日：2001-05-17
发明人： Gregory P. Krishmar-Junker , Charles W. Chandler , Makkalon Em
IPC分类号： H01Q019/00 , H01Q013/00
CPC分类号： H01Q13/0258 , H01Q5/55
摘要： An antenna system that employs antenna elements for both transmit and receive functions. Signals received by each antenna element are directed to a dual band polarizer that converts the signals to linearly polarized signals, and signals to be transmitted by each antenna element are converted to circularly polarized signals by the polarizer. The orientation of the polarizer and whether the circularly polarized signals are LHCP or RHCP determines whether the linearly polarized signals are vertically or horizontally polarized. A dual-band orthomode transducer is employed to separate the receive and transmit signals into their respective frequency bands based on whether they are vertically or horizontally polarized. The transducer is a waveguide device having only three signal ports. A high pass filter is used to help separate the received signals, and a low pass filter is used to help separate the transmit signals.
摘要翻译：一种采用天线元件进行发射和接收功能的天线系统。由每个天线元件接收的信号被引导到将信号转换为线性偏振信号的双频带偏振器，并且由每个天线元件发射的信号由偏振器转换成圆偏振信号。偏振器的取向以及圆偏振信号是LHCP还是RHCP来确定线性偏振信号是垂直还是水平偏振。根据它们是垂直还是水平极化，采用双频带原子传感器将接收和发射信号分离成各自的频带。传感器是仅具有三个信号端口的波导器件。使用高通滤波器来帮助分离接收的信号，并且使用低通滤波器来帮助分离发射信号。

10. 发明申请

US20020171596A1 Dual band frequency polarizer using corrugated geometry profile 有权
标题翻译：双波段频率偏振器采用波纹几何形状
公开(公告)号：US20020171596A1
公开(公告)日：2002-11-21
申请号：US09860045
申请日：2001-05-17
发明人： Makkalon Em , Charles W. Chandler , Louis C. Wilson
IPC分类号： H01Q019/00 , H01Q013/00
CPC分类号： H01Q13/0225 , H01P1/171 , H01Q13/0216 , H01Q15/244
摘要： An antenna system that employs an antenna element for both transmit and receive functions, where a dual band polarizer is used to convert linearly polarized signals to circularly polarized signals and vice versa for two frequency bands. The dual band polarizer includes a waveguide including corrugated structures extending from opposing sidewalls, where ridges in the structures extend perpendicular to the propagation direction of the signal. The height of the ridges taper from a lowest height at the ends of the waveguide to a largest height at the middle of the waveguide. The corrugated structures interact with the field components of the signal in the direction perpendicular to the ridges that cause that component to be delayed relative to the field components parallel to the ridges so that the signal changes accordingly and maintains the same magnitude.
摘要翻译：天线系统采用发射和接收功能的天线元件，其中使用双频带偏振器将线性偏振信号转换为圆偏振信号，反之亦然。双波段偏振器包括波导，其包括从相对侧壁延伸的波纹结构，其中结构中的脊垂直于信号的传播方向延伸。脊的高度从波导端部的最低高度到波导中间的最大高度逐渐变细。波纹结构与垂直于脊的方向的信号的场分量相互作用，导致该分量相对于平行于脊的场分量被延迟，使得信号相应地改变并保持相同的幅度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式