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1. 发明授权

US5675346A Annular microstrip antenna element and radial line antenna system employing the same 失效
标题翻译：环形微带天线元件和采用其的径向线天线系统
公开(公告)号：US5675346A
公开(公告)日：1997-10-07
申请号：US618822
申请日：1996-03-20
申请人： Kunitoshi Nishikawa , Toshiaki Watanabe , Masaru Ogawa , Tomohisa Harada
发明人： Kunitoshi Nishikawa , Toshiaki Watanabe , Masaru Ogawa , Tomohisa Harada
IPC分类号： H01Q21/06 , H01Q9/04 , H01Q13/08 , H01Q13/20 , H01Q21/00 , H01Q1/38
CPC分类号： H01Q9/0464 , H01Q21/0012
摘要： In an annular microstrip antenna element, an annular radiant conductor plate is mounted on a ground conductor plate via a dielectric layer. A coaxial transmission line is provided, whose external conductor is connected to the ground conductor plate, and whose central conductor is connected to the radiant conductor plate, via a feeding point, with a pair of microstrip lines. The pair of microstrip lines extend from the feeding point to two connecting points on the radiant conductor plate, forming an angle between them like a V shape. By varying the angle, it is possible to adjust the input impedance of the annular microstrip antenna element at the feeding point, so that impedance matching with the coaxial transmission line is achieved. In a radial line antenna system comprising a plurality of the antenna elements, the antenna elements are mounted on concentric circles with a constant space between the adjacent antenna elements, thereby reducing undesirable electromagnetic coupling.
摘要翻译：在环形微带天线元件中，环形辐射导体板通过电介质层安装在接地导体板上。提供一种同轴传输线，其外部导体连接到接地导体板，并且其中心导体经由馈电点与一对微带线连接到辐射导体板。一对微带线从馈电点延伸到辐射导体板上的两个连接点，在它们之间形成一个V形的角度。通过改变角度，可以调节馈电点处的环形微带天线元件的输入阻抗，从而实现与同轴传输线的阻抗匹配。在包括多个天线元件的径向天线系统中，天线元件以相邻的天线元件之间的恒定空间安装在同心圆上，从而减少不期望的电磁耦合。

2. 发明授权

US5900836A Tracking antenna system 失效
标题翻译：跟踪天线系统
公开(公告)号：US5900836A
公开(公告)日：1999-05-04
申请号：US624802
申请日：1996-03-27
申请人： Kunitoshi Nishikawa , Tomohisa Harada , Toshiaki Watanabe , Masaru Ogawa
发明人： Kunitoshi Nishikawa , Tomohisa Harada , Toshiaki Watanabe , Masaru Ogawa
IPC分类号： G05D3/00 , G01S3/42 , G01S3/44 , H01Q1/12 , H01Q1/32 , H01Q3/08 , H01Q3/00
CPC分类号： H01Q1/3233 , H01Q1/1257 , H01Q3/08
摘要： A control portion performs gyro control at control intervals of .DELTA.t, by using -.omega.G, which is obtained by inverting the polarity of an angular rate .omega.G outputted from an angular rate sensor portion. On the other hand, a receiving level is detected at constant control intervals of .DELTA.T (=M.DELTA.t: M is an integer). The rotation of an antenna portion is controlled by using .omega.s, if the receiving level has increased, or by using -.omega.s, if the receiving level has decreased, i.e. by step track control. By accumulating the control amount .+-..omega.s for a predetermined long time period of N.DELTA.T, accumulation of an error contained in each angular rate .omega.G is obtained. The accumulated value is then divided by N to calculate an error .DELTA..omega.G contained in .omega.G. This error .DELTA..omega.G is used to compensate the actual error, so that the gyro control can be made more accurate.
摘要翻译：控制部分通过使用通过使从角速度传感器部分输出的角速度ωG的极性反转获得的ωG来执行DELTA t的控制间隔的陀螺仪控制。另一方面，在DELTA T（= M DELTA t：M是整数）的恒定控制间隔处检测到接收电平。天线部分的旋转通过使用ω-s来控制，如果接收电平已经增加，或者如果接收电平已经减小，即通过步进轨迹控制，则通过使用ωω来控制天线部分的旋转。通过在N DELTA T的预定长时间周期内累积控制量+/- omega，获得每个角速度ωG中包含的误差的积累。然后将累积值除以N，以计算包含在ωG中的误差ΔTAωωG.该误差ΔTAωG用于补偿实际误差，使得可以使陀螺仪控制更准确。

3. 发明授权

US6034643A Directional beam antenna device and directional beam controlling apparatus 失效
标题翻译：定向波束天线装置和定向波束控制装置
公开(公告)号：US6034643A
公开(公告)日：2000-03-07
申请号：US45711
申请日：1998-03-23
申请人： Kunitoshi Nishikawa , Tomohisa Harada , Toshiaki Watanabe , Masaru Ogawa , Eiji Teramoto
发明人： Kunitoshi Nishikawa , Tomohisa Harada , Toshiaki Watanabe , Masaru Ogawa , Eiji Teramoto
IPC分类号： H01Q3/08 , H01Q3/10
CPC分类号： H01Q3/10 , H01Q3/08 , Y10T74/20
摘要： A directional beam antenna device includes: an antenna supporting member which is supported on a base in such a manner as to be rotatable about a first rotational axis; an antenna portion which is supported on the antenna supporting member in such a manner as to be rotatable about a second rotational axis which is perpendicular to an antenna aperture and is inclined at a first angle with respect to the first rotational axis, the direction of an antenna beam being inclined at a second angle with respect to the second rotational axis; a first driving unit for rotating the antenna supporting member about the first rotational axis with respect to the base; and a second driving unit for rotating the antenna portion about the second rotational axis with respect to the antenna supporting member. A directional beam controlling apparatus is provided with a controlling unit for controlling an elevation angle of the antenna beam to a target value by causing the second driving unit to rotate the antenna portion with respect to the antenna supporting member, and for controlling an azimuth angle of the antenna beam to a target value by causing the first driving unit to rotate the antenna supporting member with respect to the base.
摘要翻译：定向波束天线装置包括：天线支撑构件，其以可绕第一旋转轴线旋转的方式支撑在基座上; 天线部分，其被支撑在天线支撑构件上，使得可以围绕垂直于天线孔径的第二旋转轴线旋转，并且相对于第一旋转轴线以第一角度倾斜，天线波束相对于第二旋转轴线以第二角度倾斜; 第一驱动单元，用于相对于基座围绕第一旋转轴线旋转天线支撑构件; 以及第二驱动单元，用于相对于天线支撑构件旋转天线部分围绕第二旋转轴线。定向波束控制装置设置有控制单元，用于通过使第二驱动单元相对于天线支撑构件旋转天线部分而将天线波束的仰角控制到目标值，并且用于控制天线束的方位角通过使第一驱动单元相对于基座旋转天线支撑构件，使天线波束成为目标值。

4. 发明授权

US06172650B2 Antenna system 失效
标题翻译：天线系统
公开(公告)号：US06172650B2
公开(公告)日：2001-01-09
申请号：US09343523
申请日：1999-06-30
申请人： Masaru Ogawa , Kunitoshi Nishikawa , Kazuo Sato
发明人： Masaru Ogawa , Kunitoshi Nishikawa , Kazuo Sato
IPC分类号： H01Q2100
CPC分类号： H01Q3/04 , H01Q9/18 , H01Q9/30 , H01Q19/19
摘要： There is provided an antenna system applicable to an in-vehicle satellite tracking antenna system. A feed probe (1) is inserted into a ground plate (4) from a lower surface of the ground plate (4) toward an upper surface to protrude from the upper surface. A semicylindrical sub-reflector (2) forming a primary radiator together with the feed probe (1) is arranged on the upper surface of the ground plate (4) in the vicinity of the feed probe (1), and a main reflector (3) is arranged on the ground plate (4) such that mirror surfaces of the reflectors face to each other across the feed probe (1). The main reflector (3) is parabolic in at least one axis, and has a predetermined focal point or a predetermined focal line. The main reflector (3) is standing on the ground plate (4) such that the feed probe (1) is positioned on the focal point or the focal line, which is mounted on the ground plate (4) at a predetermined installing angle &thgr; so that an elevation angle of the antenna is directed in a direction that receives radio waves or a direction that radiates radio waves. Tracking of the antenna system with respect to an azimuth is carried out by turning the ground plate (4) in a fashion being out of contact with the feed probe (1). By virtue of the above construction, the antenna system can be downsized or given a low profile.
摘要翻译：提供了适用于车载卫星跟踪天线系统的天线系统。馈电探针（1）从接地板（4）的下表面朝向上表面插入到接地板（4）中以从上表面突出。在馈电探针（1）附近，在接地板（4）的上表面上设置与进料探头（1）一起形成初级辐射器的半圆柱形副反射器（2），主反射器）布置在接地板（4）上，使得反射器的镜面横跨进给探针（1）彼此面对。主反射器（3）在至少一个轴上是抛物线的，并且具有预定的焦点或预定的焦线。主反射器（3）站立在接地板（4）上，使得馈送探针（1）位于焦点或焦点线上，焦点线以预定的安装角度θ安装在接地板（4）上使得天线的仰角指向接收无线电波的方向或辐射无线电波的方向。相对于方位角的天线系统的跟踪是通过以与进给探针（1）不接触的方式转动接地板（4）来进行的。凭借上述结构，天线系统可以被小型化或者低调。

5. 发明授权

US06972730B2 Antenna system 失效
标题翻译：天线系统
公开(公告)号：US06972730B2
公开(公告)日：2005-12-06
申请号：US09985293
申请日：2001-11-02
申请人： Masaru Ogawa , Kazuo Sato , Kunitoshi Nishikawa
发明人： Masaru Ogawa , Kazuo Sato , Kunitoshi Nishikawa
IPC分类号： H01Q19/195 , H01Q3/20 , H01Q9/30 , H01Q15/14 , H01Q15/24 , H01Q19/19 , H01Q19/20 , G08B13/14 , H01Q15/02
CPC分类号： H01Q9/30 , H01Q19/192 , H01Q19/195 , H01Q19/20
摘要： A feed probe (1), a semicylindrical sub-reflector (2) forming a primary radiator together with the feed probe (1), and a main reflector (3) arranged such that mirror surfaces of said main reflector (3) and the sub-reflector face across the feed probe (1) are all disposed on a ground plate (a recfector face) (4). The main reflector (3) has a predetermined focal point or focal line on which the feed probe (1) is located, and is mounted on the ground plate (4) at a predetermined installation angle θ. A converter (500) for converting linearly and circularly polarized waves is provided on the mirror surface of the main reflector (3). The converter (500) is composed of a plurality of grooves (510) and ridges (512) formed between the grooves, so that a wave component orthogonal to the grooves is reflected at the bottom of the grooves while a wave component parallel to the grooves is reflected on the ridge surface, thereby causing a phase difference according to the height H of the grooves when a radio wave is reflected on the main reflector to thereby perform linear to circular polarization conversion.
摘要翻译：进料探针（1），与进料探针（1）一起形成初级辐射器的半圆柱形副反射器（2）和主反射器（3），其布置成使得所述主反射器（3）和子 - 馈送探头（1）两端的反射器面都全部设置在接地板（recfector face）（4）上。主反射器（3）具有预定的焦点或焦线，进给探针（1）位于该焦点或焦线上，并以预定的安装角度θ安装在接地板（4）上。用于转换线性和圆偏振波的A转换器（500）设置在主反射器（3）的镜面上。转换器（500）由形成在槽之间的多个槽（510）和脊（512）组成，使得与沟槽正交的波成分在槽的底部被反射，而波形成分平行于槽反射在脊面上，从而当无线电波在主反射体上反射时，根据槽的高度H产生相位差，从而进行线偏振转换。

6. 发明授权

US06424298B1 Microstrip array antenna 有权
标题翻译：微带阵列天线
公开(公告)号：US06424298B1
公开(公告)日：2002-07-23
申请号：US09576443
申请日：2000-05-22
申请人： Kunitoshi Nishikawa , Hideo Iizuka , Toshiaki Watanabe
发明人： Kunitoshi Nishikawa , Hideo Iizuka , Toshiaki Watanabe
IPC分类号： H01Q138
CPC分类号： H01Q21/064 , H01Q21/0037 , H01Q21/0043 , H01Q21/065
摘要： Ten radiation antenna elements project from a straight feeder stripline. A first set of radiation antenna elements each having a rectangular shape project from a first side edge of the feeder stripline such that the radiation antenna elements incline at an angle of about 45 degrees. The distance between adjacent radiation antenna elements is equal to an guide wavelength &lgr;g and the length of each radiation antenna element is equal to &lgr;g/2. Similarly, a second set of radiation antenna elements each having a rectangular shape project from a second side edge of the feeder stripline. Each of the radiation antenna elements in the second set is disposed to be separated by &lgr;g/2 from a corresponding one of the radiation antenna elements in the first set. Each of the radiation antenna elements is connected to the corresponding side edge of the feeder stripline via a corner thereof.
摘要翻译：十个辐射天线元件从直线馈线带状线投影。第一组辐射天线元件，每个辐射天线元件具有从馈线带状线的第一侧边缘突出的矩形，使得辐射天线元件以大约45度的角度倾斜。相邻辐射天线元件之间的距离等于引导波长lambdg，并且每个辐射天线元件的长度等于lambdg / 2。类似地，具有矩形形状的第二组辐射天线元件从馈线带状线的第二侧边缘突出。第二组中的每个辐射天线元件设置成由第一组中的对应的一个辐射天线元件的lambdg / 2分开。每个辐射天线元件经由其拐角连接到馈线带状线的相应侧边缘。

7. 发明授权

US06580335B1 Waveguide-transmission line transition having a slit and a matching element 有权
标题翻译：具有狭缝和匹配元件的波导传输线转变
公开(公告)号：US06580335B1
公开(公告)日：2003-06-17
申请号：US09471470
申请日：1999-12-23
申请人： Hideo Iizuka , Kunio Sakakibara , Kunitoshi Nishikawa , Kazuo Sato , Toshiaki Watanabe
发明人： Hideo Iizuka , Kunio Sakakibara , Kunitoshi Nishikawa , Kazuo Sato , Toshiaki Watanabe
IPC分类号： H01P5107
CPC分类号： H01P5/107
摘要： In a waveguide-transmission line transition, a short-circuiting metal layer is formed on one surface of a dielectric substrate, and the short-circuiting metal layer has a slit in which a strip line is disposed. The short-circuiting metal layer and the strip line are disposed on the same plane with a predetermined gap formed therebetween. A grounding metal layer having a shape substantially congruent with the cross-sectional shape of the opening surface of the waveguide is formed on the other surface of the dielectric substrate. The short-circuiting metal layer, the grounding metal layer, and the waveguide are maintained at the same potential by metal embedded in through-holes provided along the circumferential edge of the dielectric substrate. Further, a matching element is disposed on the surface of the dielectric substrate on which the grounding metal layer is formed. This structure enables formation of substantially the entirety of the transition, except the waveguide, on the same substrate on which a microwave or millimeter-wave circuit or a planar antenna are formed.
摘要翻译：在波导 - 传输线转变中，在电介质基片的一个表面上形成短路金属层，短路金属层具有设置有带状线的狭缝。短路金属层和带状线设置在同一平面上，其间形成有预定的间隙。在电介质基板的另一个表面上形成具有与波导的开口表面的横截面形状基本一致的形状的接地金属层。短路金属层，接地金属层和波导通过嵌入在沿着电介质基板的周缘设置的通孔中的金属保持在相同的电位。此外，在形成有接地金属层的电介质基板的表面上配置有匹配元件。该结构能够在形成有微波或毫米波电路或平面天线的同一基板上形成基本上除了波导之外的整个过渡部分。

8. 发明授权

US5245348A Tracking antenna system 失效
标题翻译：跟踪天线系统
公开(公告)号：US5245348A
公开(公告)日：1993-09-14
申请号：US842968
申请日：1992-02-28
申请人： Kunitoshi Nishikawa , Shigeki Ohshima , Toshiaki Watanabe
发明人： Kunitoshi Nishikawa , Shigeki Ohshima , Toshiaki Watanabe
IPC分类号： G01S3/04 , G01S3/42 , G01S3/46 , G01S3/48 , H01Q1/12 , H01Q1/32 , H01Q3/02 , H01Q3/26
CPC分类号： G01S3/46 , H01Q1/125 , H01Q1/3275 , H01Q3/02
摘要： An antenna is divided into a plurality of sub-arrays which are arranged parallel to each other on a turntable. At least one of the sub-arrays is laterally divided into sub-array sections. Reception signals from these sub-array sections are compared with each other to detect a phase difference therebetween. This phase difference is utilized to control the beam direction of the antenna such that the antenna can be properly oriented to the satellite at all times.
摘要翻译：天线被分成在转台上彼此平行布置的多个子阵列。子阵列中的至少一个被横向划分成子阵列部分。将来自这些子阵列部的接收信号进行比较，以检测它们之间的相位差。该相位差用于控制天线的波束方向，使得天线可以始终适当地定向到卫星。

9. 发明授权

US06831611B2 Antenna system 失效
标题翻译：天线系统
公开(公告)号：US06831611B2
公开(公告)日：2004-12-14
申请号：US10354995
申请日：2003-01-31
申请人： Junzo Ooe , Kansei Mizutani , Kazuo Sato , Shin-ichiro Matsuzawa , Kunitoshi Nishikawa
发明人： Junzo Ooe , Kansei Mizutani , Kazuo Sato , Shin-ichiro Matsuzawa , Kunitoshi Nishikawa
IPC分类号： H01Q132
CPC分类号： H01Q1/3275 , H01Q3/247 , H01Q7/00
摘要： The invention is an antenna system that transmits and receives image signals audio signal and/or data signals. The antenna system has at least one antenna element and one or more power supply elements. A power supply switching device switches the power supply element or elements to select at least one antenna element and a power supply cable supplies power to the power supply switching device.
摘要翻译：本发明是发送和接收图像信号音频信号和/或数据信号的天线系统。天线系统具有至少一个天线元件和一个或多个电源元件。电源开关装置切换电源元件以选择至少一个天线元件，并且电源电缆向电源开关装置供电。

10. 发明授权

US5146232A Low profile antenna for land mobile communications 失效
标题翻译：用于土地移动通信的低剖面天线
公开(公告)号：US5146232A
公开(公告)日：1992-09-08
申请号：US662638
申请日：1991-02-28
申请人： Kunitoshi Nishikawa , Kazuo Sato
发明人： Kunitoshi Nishikawa , Kazuo Sato
IPC分类号： H01Q13/08 , H01Q1/32 , H01Q7/00 , H01Q9/40 , H04B7/04
CPC分类号： H01Q1/32 , H01Q7/00 , H01Q9/40
摘要： An antenna mounted on a mobile. In a first structure, a radiating element is composed of a ground plate, a vertical conductor plate and a parallel conductor plate placed on the ground plate with a predetermined space therebetween in such a manner as to have a T-shaped section and placed on the ground plate with a narrow space therebetween, and posts for connecting the edges of the parallel plate to the ground plate. Power is fed to the lower edge of the vertical conductor plate, thereby enabling a plurality of current paths to be formed in the radiating element and, hence, resonance in a wide frequency band. In a second structure, a radiating element has a conductor plate for impedance compensation in the vicinity of the feeding point of a conductor which is bent in the form of substantially a box, thereby enabling the reduction of the entire size and sufficiently increasing the length of the radiating element. In a third structure, a radiating element having the first structure and a radiating element having the second structure are adopted for effecting diversity reception.

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