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1. 发明申请

US20040257290A1 MULTI-BAND RING FOCUS ANTENNA SYSTEM 失效
标题翻译：多束环聚焦天线系统
公开(公告)号：US20040257290A1
公开(公告)日：2004-12-23
申请号：US10600627
申请日：2003-06-20
发明人： Griffin K. Gothard , Jay A. Kralovec , Timothy E. Durham
IPC分类号： H01Q013/00
CPC分类号： H01Q13/0266 , H01Q5/47 , H01Q19/19
摘要： Method and apparatus for feeding a compact main reflector of an RF antenna on a plurality of spectrally offset frequency bands. The method can include the steps of forming a focal ring for a main reflector (304) by positioning an RF source (301) at a first frequency within a first frequency band in the far field relative to a shaped non-linear surface of revolution so that the shaped non-linear surface of revolution forms a subreflector (302). A second focal ring can be formed for the main reflector (304) by positioning a second RF source (300) in the nearfield of the shaped non-linear surface of revolution.

2. 发明申请

US20040233119A1 Broadband waveguide horn antenna and method of feeding an antenna structure 有权
标题翻译：宽带波导喇叭天线和馈线天线结构的方法
公开(公告)号：US20040233119A1
公开(公告)日：2004-11-25
申请号：US10441824
申请日：2003-05-20
发明人： Charles Winfred Chandler
IPC分类号： H01Q013/00
CPC分类号： H01Q13/0258 , H01Q5/55 , H01Q13/0208
摘要： A waveguide horn antenna includes a horn-shaped body portion and one or more feed structures. Each feed structure includes feed locations positioned between spaced apart ends of the body portion according to short circuit locations of desired frequencies to facilitate propagation of electromagnetic energy at the desired frequencies. Multiple frequency bands can be supported with the antenna by employing more than one axially spaced apart feed structures having associated feed locations arranged along the body portion of the antenna.
摘要翻译：波导喇叭天线包括喇叭形主体部分和一个或多个馈送结构。每个馈送结构包括根据期望频率的短路位置定位在主体部分的间隔开的端部之间的馈送位置，以促进在期望频率处的电磁能量的传播。通过使用多于一个沿着天线的主体部分布置的相关联的馈送位置的轴向间隔开的进给结构，天线可以支持多个频带。

3. 发明申请

US20040227686A1 Primary radiator for parabolic antenna 失效
标题翻译：抛物面天线主辐射器
公开(公告)号：US20040227686A1
公开(公告)日：2004-11-18
申请号：US10843244
申请日：2004-05-11
发明人： Masatoshi Sasaki , Tomoyuki Mori , Kenji Obinata
IPC分类号： H01Q013/00
CPC分类号： H01Q13/02 , H01Q1/421
摘要： A primary radiator used for a parabolic antenna including: a radiator body having a horn part provided at one end of a waveguide; and a waterproof cover covering an open end of the horn part of the radiator body, wherein a step is formed on an inner surface of the horn part of the radiator body, and a position of the step is set so that radio waves reflected on the waterproof cover are cancelled out by radio waves reflected on the step to prevent multiple reflection in the radiator body.
摘要翻译：一种用于抛物面天线的主辐射器，包括：辐射体，其具有设置在波导一端的喇叭部分; 以及覆盖散热器主体的喇叭部的开口端的防水罩，其中，在散热器主体的喇叭部的内表面上形成有台阶，并且台阶的位置被设定为使得在防水罩通过反射在台阶上的无线电波消除，以防止散热器本体的多重反射。

4. 发明申请

US20040222934A1 Multi-mode, multi-choke feed horn 审中-公开
标题翻译：多模式，多扼流馈电喇叭
公开(公告)号：US20040222934A1
公开(公告)日：2004-11-11
申请号：US10430833
申请日：2003-05-06
申请人： Northrop Grumman Corporation
发明人： Te-Kao Wu
IPC分类号： H01Q013/00
CPC分类号： H01Q13/0266 , H01Q13/025
摘要： A multi-mode, multi-choke feed horn that employs a plurality of chokes designed to excite the proper mode content in a satellite uplink signal or downlink signal over a particular wide bandwidth. In one embodiment, the feed horn includes five chokes, where the choke closest to the feed end of the horn has a depth of about 0.075null.
摘要翻译：一种多模式多扼流馈电喇叭，其采用多个扼流圈，其设计成在特定宽带宽上激发卫星上行链路信号或下行链路信号中的适当模式内容。在一个实施例中，馈电喇叭包括五个扼流圈，其中最靠近喇叭馈电端的扼流圈具有约0.075“的深度。

5. 发明申请

US20040169612A1 Multiband branch radiator antenna element 有权
标题翻译：多频段分支辐射天线元件
公开(公告)号：US20040169612A1
公开(公告)日：2004-09-02
申请号：US10377129
申请日：2003-02-28
发明人： Peter Chun Teck Song , Ross David Murch
IPC分类号： H01Q013/00
CPC分类号： H01Q9/26 , H01Q5/371 , H01Q5/48
摘要： Disclosed are systems and methods which provide multi-band antenna elements using multiple radiating branches interconnected with a feed plate, thereby providing a multi-band antenna element having a single feed. Additionally or alternatively, a wide band antenna configuration is provided utilizing multiple radiating branches of a multi-band antenna element of the present invention. Embodiments utilize one or more reflectors, such as to provide directivity and/or radiation pattern shaping, including utilizing one or more radiating branches of a multi-band antenna element as a reflector for another one or more radiating branches of the multi-band antenna.
摘要翻译：公开了使用与馈电板互连的多个辐射支路提供多频带天线元件的系统和方法，从而提供具有单个馈电的多频带天线元件。附加地或替代地，利用本发明的多频带天线元件的多个辐射分支来提供宽带天线配置。实施例利用一个或多个反射器，例如提供方向性和/或辐射图案整形，包括利用多频带天线元件的一个或多个辐射支路作为多频带天线的另一个或多个辐射支路的反射器。

6. 发明申请

US20040160222A1 Circular pole piece, laminate block manufacturing method, and MRI system 失效
标题翻译：圆极片，层压块制造方法和MRI系统
公开(公告)号：US20040160222A1
公开(公告)日：2004-08-19
申请号：US10776879
申请日：2004-02-11
发明人： Hiroyuki Chonan , Takeshi Sako , Yuji Inoue , Masaaki Sakuma
IPC分类号： G01V003/00 , H01P011/00 , H01Q013/00
CPC分类号： G01R33/3873 , G01R33/383 , H01F7/0278 , Y10T29/49016
摘要： Provided is a circular pole piece that contributes to simplification of work and a reduction in costs and that has no gap created among adjoining blocks. A circular pole piece is manufactured by circularly arranging laminate blocks each having numerous hexagonal directional magnetic steel sheet tiles layered. Since heteromorphic soft magnetic material tiles are unnecessary, work can be simplified and the cost of the circular pole piece can be reduced. Moreover, the laminate blocks can be arranged substantially circularly without a gap among adjoining blocks.
摘要翻译：提供有助于简化工作和降低成本并且在相邻块之间不产生间隙的圆形极片。圆形极片通过圆形布置各自具有多个六角形方向性电磁钢板瓦的层压块来制造。由于异形软磁性材料砖是不需要的，所以可以简化工作，并且可以降低圆形极片的成本。此外，层压块可以基本上圆形地布置，而在相邻块之间没有间隙。

7. 发明申请

US20040155830A1 Receiving signals from plural satellites in one antenna 失效
标题翻译：从一个天线的多个卫星接收信号
公开(公告)号：US20040155830A1
公开(公告)日：2004-08-12
申请号：US10471081
申请日：2004-03-23
发明人： Stig Anders Petersson
IPC分类号： H01Q013/00
CPC分类号： H01Q1/1207 , H01Q3/18 , H01Q3/245 , H01Q3/2658 , H01Q15/06 , H01Q19/062 , H01Q19/065 , H01Q25/007
摘要： A device for receiving/transmitting electromagnetic signals from/to at least two satellites fixedly located at points at the geostationary path comprises an antenna, for example a lens (1) of waveguide nature. The antenna images remote points at a focal surface and in the points where the satellites are imaged receiver horns (23, 23null) are placed. The horns are adjustably mounted to a rail (21) of a mounting unit (9) except the central horn (23null) that is fixedly placed for receiving along the optical axis of the antenna, at a predetermined distance of the antenna. The rail is mounted to be rotated about the optical axis of the antenna, this giving a simple adjustment of the other horns (23). Using an adjusting assembly the curvature of the rail can be varied to be adapted to receiving at different latitudes.
摘要翻译：用于从固定地位于对地静止路径的点处的至少两个卫星接收/发送电磁信号的装置包括天线，例如波导性质的透镜（1）。天线将焦点表面上的远程点和放置卫星成像接收器喇叭（23,23'）的点成像。喇叭可调节地安装到安装单元（9）的轨道（21），该中心喇叭（23'）固定放置以沿着天线的光轴在天线的预定距离处接收。轨道被安装成围绕天线的光轴旋转，这简单地调节了另一个喇叭（23）。使用调整组件，轨道的曲率可以变化以适应于在不同纬度处的接收。

8. 发明申请

US20040113859A1 CONCAVE ANTENNA WITH IMPROVED GAIN DROP-OFF CHARACTERISTICS RELATIVE TO ANGLE OF RECEIVED WAVEFRONT 有权
标题翻译：具有相对于接收到的波形角度的改进的增益减小特性的天线
公开(公告)号：US20040113859A1
公开(公告)日：2004-06-17
申请号：US10320229
申请日：2002-12-16
发明人： David S. Benco
IPC分类号： H01Q013/00 , H01Q019/12
CPC分类号： H01Q19/021 , H01Q19/12
摘要： Paraboloidal antennas are common for very high frequencies (VHF) and into the cellular telephone systems and personal communication systems (PCS). Paraboloidal antennas are often used at the base station of either cellular telephone antennas, PCS antennas or both. To avoid possible channel drop out because a sharp focal point of the antenna is misaligned by improper installation or harsh weather conditions. For base stations for cellular telephone systems and/or systems, PCS, a generally paraboloidal antenna that has a less sharp focal point so there is a antenna lower gain, but less relative signal degradation because of weather or other misalignment of the antenna. In such cases, the lower gain, but higher immunity to drop-out more than justifies such arrangements.
摘要翻译：抛物线天线对于非常高频（VHF）和蜂窝电话系统和个人通信系统（PCS）是常见的。抛物线天线通常用于蜂窝电话天线，PCS天线或两者的基站。为了避免可能的信道丢失，因为天线的尖锐焦点由于安装不当或恶劣的天气条件而不对准。对于蜂窝电话系统和/或系统的基站，PCS是具有较不尖锐焦点的普通抛物面天线，因此天线具有较低的增益，但是由于天线或天线的其他未对准而导致的相对信号劣化较少。在这种情况下，较低的收益，但更高的豁免豁免超过了这种安排的理由。

9. 发明申请

US20040066349A1 Radar horn antenna 失效
标题翻译：雷达喇叭天线
公开(公告)号：US20040066349A1
公开(公告)日：2004-04-08
申请号：US10395224
申请日：2003-03-25
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA
发明人： Tetsuya Ohba
IPC分类号： H01Q013/00
CPC分类号： H01Q1/3233 , H01Q13/02
摘要： A radar horn antenna in which, to reduce or remove unnecessary echo from a specific angular range such as ground clutter, divergence in axial direction of a horn antenna 8 accommodated in a casing and covered with a radome is asymmetrical with respect to the axis of the horn antenna so that a maximum radiation direction in a radiation pattern of the horn antenna is deviated from front to another and/or gain in the specific angular range is controlled.
摘要翻译：一种雷达喇叭天线，其中，为了减少或去除诸如地面杂波的特定角度范围的不必要的回波，容纳在壳体中并被天线罩覆盖的喇叭天线8的轴向方向上的发散相对于喇叭天线使得喇叭天线的辐射图中的最大辐射方向从前方向前偏移和/或在特定角度范围内的增益被控制。

10. 发明申请

US20040041737A1 MULTI-BAND RING FOCUS DUAL REFLECTOR ANTENNA SYSTEM 失效
标题翻译：多束环焦点双反射天线系统
公开(公告)号：US20040041737A1
公开(公告)日：2004-03-04
申请号：US10231933
申请日：2002-08-29
发明人： Griffin K. Gothard , Timothy E. Durham , Jay A. Kralovec
IPC分类号： H01Q013/00
CPC分类号： H01Q19/191 , H01Q19/19
摘要： A ring focus antenna and method of using same. The ring focus antenna can have a main reflector of revolution shaped as a non-regular paraboloid about a boresight axis of the antenna. A sub-reflector/feed pair is provided comprising a sub-reflector of revolution shaped as a non-regular ellipsoid having a ring-shaped focal point about the boresight axis. A feed element is installed at a feed element location separated spaced from a vertex of the sub-reflector on the boresight axis of the antenna. The main reflector is adapted for operation with multiple sub-reflector/feed pairs having a coupled configuration, and multiple sub-reflector/feed pairs having a decoupled configuration (i.e. classical optical dual reflector system). The main reflector is operable at a plurality of spectrally offset frequency bands. For example, the antenna can be designed for operation over C-band, X-band, Ku-band, and Ka-band.
摘要翻译：环形聚焦天线及其使用方法。环形聚焦天线可以具有围绕天线的视轴的形状为非规则抛物面的旋转主反射器。提供了一个副反射器/进给对，其包括形成为非规则椭圆体的旋转子反射器，其具有围绕视轴的环形焦点。馈送元件安装在与天线的视轴上的子反射器的顶点间隔开的馈电元件位置处。主反射器适用于具有耦合配置的多个子反射器/馈电对以及具有去耦配置的多个子反射器/馈电对（即经典的光学双反射器系统）。主反射器可在多个光谱偏移频带处操作。例如，天线可以被设计用于在C波段，X波段，Ku波段和Ka波段上运行。

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