-
公开(公告)号：US06288683B1
公开(公告)日：2001-09-11
申请号：US09530395
申请日：2000-09-27
申请人： Hiroyuki Deguchi , Norio Miyahara , Shuji Urasaki , Soichi Matsumoto , Masato Ishiguro , Tomohiro Mizuno , Shigeru Makino
发明人： Hiroyuki Deguchi , Norio Miyahara , Shuji Urasaki , Soichi Matsumoto , Masato Ishiguro , Tomohiro Mizuno , Shigeru Makino
IPC分类号： H01Q300
CPC分类号： H01Q15/14 , H01Q3/20 , H01Q19/18 , H01Q19/19 , H01Q19/191
摘要： An antenna mirror surface measuring/adjusting apparatus has a plane mirror larger than an aperture surface of said principal reflection mirror and set in parallel with the aperture surface, an actuator for driving a group of mirror surface panels of the principal reflection mirror, and a receiving electric field arithmetic processor for measuring, each time the actuator shifts a position of the mirror surface panel from an initial state of the mirror surface panel of the principal reflection mirror, radio wave signals of radio waves radiated by a transmitter/receiver and reflected back from the plane mirror, obtaining an aperture surface phase distribution in an initial state of the principal reflection mirror by executing an arithmetic process on these measured signals, then gaining configurations of the mirror surface on the basis of the aperture surface phase distribution, and adjusting the mirror surface by the actuator in accordance with the obtained mirror surface configurations. Accordingly, a measurement frequency is freely selected, and the measurement can be carried out in an ideal measurement environment of not being influenced by changes in wind, sunlight and temperature, whereby the mirror surface can be adjusted with high accuracy.
摘要翻译： 一种天线镜面测量/调节装置具有比所述主反射镜的孔径面大的平面镜，并与所述孔面平行设置，用于驱动所述主反射镜的一组镜面面板的致动器， 用于测量的电场运算处理器，每次致动器从主反射镜的镜面面板的初始状态移动镜面面板的位置时，由发射器/接收器辐射的无线电波的无线电波信号从 平面镜，通过对这些测量信号执行运算处理，在主反射镜的初始状态下获得孔径面相位分布，然后基于孔径面相位分布获得镜面的配置，并调整镜 根据获得的镜面构造由致动器表面。 因此，可以自由地选择测量频率，并且可以在不受风，太阳光和温度的变化影响的理想测量环境中进行测量，从而可以高精度地调整镜面。
-
2.发明授权Antenna device for conducting two-axial scanning of an azimuth and elevation 失效用于进行方位角和仰角的双轴扫描的天线装置公开(公告)号：US06870512B2
公开(公告)日：2005-03-22
申请号：US10258394
申请日：2001-07-18
申请人： Naofumi Yoneda , Moriyasu Miyazaki , Izuru Naitoh , Yoshio Inasawa , Shigeru Makino , Shuji Urasaki , Yoshihiko Konishi
发明人： Naofumi Yoneda , Moriyasu Miyazaki , Izuru Naitoh , Yoshio Inasawa , Shigeru Makino , Shuji Urasaki , Yoshihiko Konishi
摘要： For the purpose of obtaining a mechanical drive reflecting mirror antenna device which is downsized and low in attitude, enables wide-angle scanning, and is high in performance, there are provided a main reflection mirror 1, a sub-reflection mirror 2, a primary radiator 3, a first circular waveguide 4 which is connected to the primary radiator and has a plurality of bend portions, a first circular waveguide rotary joint 5 which is connected to the first circular waveguide, a second circular waveguide 7 which is connected to the first circular waveguide rotary joint and has a plurality of bend portions, and a second circular waveguide rotary joint 8 which is connected to the second circular waveguide and is different in a direction of a rotary axis from the first circular waveguide rotary joint by substantially 90 degrees.
摘要翻译： 为了获得小型化和低姿态的机械驱动反射镜天线装置，能够进行广角扫描，性能高，所以设置有主反射镜1，副反射镜2，主反射镜2 散热器3，连接到初级辐射体并具有多个弯曲部分的第一圆形波导4，连接到第一圆形波导的第一圆形波导旋转接头5，与第一圆形波导7连接的第一圆形波导7 圆形波导旋转接头，并且具有多个弯曲部分，以及第二圆形波导旋转接头8，其连接到第二圆形波导并且在旋转轴线方向上与第一圆形波导旋转接头相差大约90度。
-
公开(公告)号：US06985268B1
公开(公告)日：2006-01-10
申请号：US09979117
申请日：2000-05-30
IPC分类号： H04N1/04
CPC分类号： H04N5/2254 , G02B17/0621
摘要： Disclosed is an image capturing apparatus comprising a primary mirror 1 that has a surface which is a section of a surface cut out from a paraboloid with a single focus; a secondary mirror 2 that has a surface which is a section of a surface cut out from a hyperboloid with two foci; and a photodetector 3 which converts the light signal coming from the secondary mirror 2 into an electric signal. The secondary mirror 2 is placed in a position where one of its foci and the focus of the primary mirror 1 match with each other. The photodetector 3 is placed near the other focus of the secondary mirror 2. By using two mirrors, the light from the object is led to the photodetector 3 without being shaded.
摘要翻译： 公开了一种图像拍摄装置，包括：主镜1，其具有从具有单个焦点的抛物面切出的表面的一部分的表面; 副镜2具有表面，该表面是从具有两个焦点的双曲面切出的表面的一部分; 以及将来自副反射镜2的光信号转换为电信号的光检测器3。 副镜2放置在其一个焦点和主镜1的焦点彼此匹配的位置。 光电检测器3放置在副镜2的另一焦点附近。通过使用两个反射镜，来自物体的光被引导到光电检测器3而不被遮蔽。
-
公开(公告)号：US06741216B2
公开(公告)日：2004-05-25
申请号：US10275064
申请日：2002-12-19
申请人： Yoshio Inasawa , Izuru Naito , Shigeru Makino , Naofumi Yoneda , Moriyasu Miyazaki , Yoshihiko Konishi , Shuji Urasaki
发明人： Yoshio Inasawa , Izuru Naito , Shigeru Makino , Naofumi Yoneda , Moriyasu Miyazaki , Yoshihiko Konishi , Shuji Urasaki
IPC分类号： H01Q300
CPC分类号： H01Q19/19 , H01Q3/08 , H01Q3/20 , H01Q19/193
摘要： In order to provide a reflector antenna apparatus which can be installed within a small space, which has adequate practicality, and which can perform scanning by pivoting about two axes which are perpendicular to each other, in a reflector antenna apparatus having a Cassegrain reflector and a rotating mechanism which rotates the reflector about an azimuth axis and an elevation axis, a reflector with a substantially rectangular aperture has its elevation axis passing through substantially the central portion of the height dimension of the reflector, and reflector surface adjustment is carried out such that substantially all of the electromagnetic waves which are supplied are received and reflected, whereby the antenna height does not become large when the reflector rotates about the elevation axis. The reflector may be an array of a plurality of reflector elements.
摘要翻译： 为了提供一种可以安装在具有足够实用性的小空间内的反射器天线装置，并且其可以通过围绕彼此垂直的两个轴线枢转进行扫描，在具有卡塞格林反射器和 旋转机构，其使反射器围绕方位角轴和仰角轴旋转，反射器具有基本上矩形的孔径，其高度轴穿过反射器的高度尺寸的大致中心部分，并且进行反射器表面调节，使得基本上 所提供的所有电磁波被接收和反射，由此当反射器围绕仰角旋转时天线高度不变大。 反射器可以是多个反射器元件的阵列。
-
公开(公告)号：US4618866A
公开(公告)日：1986-10-21
申请号：US546048
申请日：1983-10-27
CPC分类号： H01Q25/007 , H01Q19/192
摘要： An antenna system in which primary radiators are disposed on the radiation side of beams from a main reflector and in opposition to a subreflector and in which the subreflector and the primary radiators are disposed in positions offset from beam blocking positions.
摘要翻译： 一种天线系统，其中一次辐射器设置在来自主反射器的光束的辐射侧并且与副反射器相对，并且其中副反射器和一次辐射器设置在偏离光束阻挡位置的位置。
-
公开(公告)号：US5966097A
公开(公告)日：1999-10-12
申请号：US856190
申请日：1997-05-14
申请人： Toru Fukasawa , Isamu Chiba , Tsutomu Endo , Shin-ichi Satoh , Shuji Urasaki
发明人： Toru Fukasawa , Isamu Chiba , Tsutomu Endo , Shin-ichi Satoh , Shuji Urasaki
CPC分类号： H01Q19/005 , H01Q5/378 , H01Q9/40 , H01Q9/42
摘要： A non-driven first linear element is disposed in the vicinity of an inverted-F second linear antenna element. The driven second linear element is disposed over a conductive plate having a flat shape, in such a manner as to be substantially parallel to the inverted-F antenna. The non-driven element has a short-circuited end of the inverted-F antenna, and has substantially the same resonant frequency as that of the inverted-F antenna.
摘要翻译： 非驱动的第一线性元件设置在倒F型第二线性天线元件附近。 被驱动的第二线性元件设置在具有平坦形状的导电板上，以使其基本上平行于倒F天线。 非驱动元件具有倒F天线的短路端，并且具有与倒F天线基本相同的谐振频率。
-
公开(公告)号：US5784034A
公开(公告)日：1998-07-21
申请号：US789685
申请日：1997-01-27
申请人： Yoshihiko Konishi , Masataka Ohtsuka , Yoshiyuki Chatani , Makoto Matsunaga , Shuji Urasaki , Takashi Katagi
发明人： Yoshihiko Konishi , Masataka Ohtsuka , Yoshiyuki Chatani , Makoto Matsunaga , Shuji Urasaki , Takashi Katagi
IPC分类号： H01Q21/08 , H01Q1/32 , H01Q1/36 , H01Q9/30 , H01Q9/32 , H01Q9/42 , H01Q11/08 , H01Q13/08 , H01Q21/00 , H01Q21/24 , H01Q21/29
摘要： Herein is revealed a helical antenna apparatus wherein the direction of beam radiation hardly changes even if the frequency in use changes. Two helical antennas which are wound with two conductive wires spirally, respectively, at equal intervals with a specified pitch .alpha. in the form of a cylinder are disposed along the length of the helical antennas so that the axes thereof substantially coincide with each other. By determining the lengths of the feeders of the respective helical antennas appropriately in order to set the phase of supplied power, it is possible to form the beam of signals radiated into space in the shape of conical beam having a directivity oriented obliquely upward. Additionally, it is possible to obtain the conical beam in which the direction of beam radiation does not change even if the frequency in use is changed.
摘要翻译： 这里揭示了一种螺旋天线装置，其中即使所使用的频率发生变化，射束辐射的方向也几乎不变化。 沿着螺旋天线的长度，以螺旋形的方式螺旋地缠绕有两个螺旋天线的两个螺旋天线分别以等间隔以特定的圆柱形形式的间距α设置，使得其轴线基本上彼此重合。 通过适当地确定各个螺旋天线的馈线的长度以设定所提供的功率的相位，可以形成辐射到具有倾斜向上定向的锥形束形状的空间中的信号光束。 此外，即使改变使用频率，也可以获得束辐射方向不变化的锥形束。
-
公开(公告)号：US5160984A
公开(公告)日：1992-11-03
申请号：US732934
申请日：1991-07-19
申请人： Mitsuru Mochizuki , Tadashi Takagi , Shuji Urasaki
发明人： Mitsuru Mochizuki , Tadashi Takagi , Shuji Urasaki
CPC分类号： H03F3/193 , H03F1/34 , H03F3/604 , H03F2200/372
摘要： In an amplifying feedback-type FET semiconductor element for use as a wide-band microwave amplifier in telecommunications system such as a radar, a monolithic IC feedback circuit is located between at least two parallel FET cells of an FET semiconductor element and also between gate and drain lead electrodes of the FET semiconductor element. The feedback circuit includes at least two connecting lines and at least one passive element and is connected to the two lead electrodes. With this arrangement, it is possible to reduce the total length of said connecting lines to a minimum, thus guaranteeing a frequency characteristic showing a flat gain over a wide band.
摘要翻译： 在用作诸如雷达的电信系统中的宽带微波放大器的放大反馈型FET半导体元件中，单片IC反馈电路位于FET半导体元件的至少两个并联FET单元之间，也位于栅极与 FET半导体元件的漏极引线电极。 反馈电路包括至少两条连接线和至少一个无源元件，并连接到两个引线电极。 通过这种布置，可以将所述连接线的总长度减小到最小，从而保证在宽带上显示平坦增益的频率特性。
-
公开(公告)号：US06222505B1
公开(公告)日：2001-04-24
申请号：US09308333
申请日：1999-05-19
IPC分类号： H01Q136
CPC分类号： H01Q21/30 , H01Q1/242 , H01Q1/243 , H01Q1/244 , H01Q5/35 , H01Q5/50 , H01Q9/30 , H01Q11/08 , H01Q21/29
摘要： A composite antenna apparatus comprising a balun connected to an inner conductor at the upper end of a coaxial line 11, one end of a helical element formed by a pair of wire conductors is connected to the balun, the other end is wound symmetrically around the coaxial line using the the coaxial line as a center so as to face the balun and is connected to the outer conductor 13 at the lower end of the coaxial line. The provision of an outer conductor connecting terminal connected to the outer conductor and an inner conductor connecting terminal connected to the inner conductor at the lower end of the coaxial line, allows the formation, on the same axis, of a helical antenna fed by the coaxial line via the helical element and a monopole antenna formed by the outer conductor of the coaxial line. Thereby equivalent gain in the horizontal plane and a reduction in the occupied volume is achieved.
摘要翻译： 一种复合天线装置，包括连接到同轴线路11的上端的内导体的平衡 - 不平衡转换器，由一对线导体形成的螺旋形元件的一端连接到平衡 - 不平衡变换器，另一端围绕同轴线对称地卷绕 使用同轴线作为中心，以面对平衡 - 不平衡变换器，并连接到同轴线下端的外导体13。 设置连接到外导体的外导体连接端子和连接到同轴线下端的内导体的内导体连接端子允许在相同轴线上形成由同轴线馈送的螺旋天线 经由螺旋元件的线和由同轴线的外导体形成的单极天线。 因此，实现了水平面中的等效增益和占用体积的减小。
-
公开(公告)号：US5184093A
公开(公告)日：1993-02-02
申请号：US840937
申请日：1992-02-25
申请人： Kenji Itoh , Akio Iida , Shuji Urasaki
发明人： Kenji Itoh , Akio Iida , Shuji Urasaki
CPC分类号： H03L7/18 , H03L7/1806 , H03L7/185
摘要： A frequency synthesizer, including a direct digital synthesizer (DDS) for providing wave amplitude data as a standard signal source, and a phase lock loop for comparing a branched synthesizer frequency with the standard signal source at a phase comparator. A frequency converter converts the output frequency of the DDS to a higher frequency and provides the resultant higher frequency to the phase comparator in the phase loop. A small loop dividing ratio is obtained by converting the low frequency of the DDS to a higher frequency. A spurious of the synthesizer output signal is reduced and provides a low power consumption apparatus.
摘要翻译： 一种频率合成器，包括用于提供波幅数据作为标准信号源的直接数字合成器（DDS）和用于在分相合成器频率与相位比较器上的标准信号源进行比较的锁相环。 变频器将DDS的输出频率转换为更高的频率，并在相位环路中将相应的较高频率提供给相位比较器。 通过将DDS的低频转换为更高的频率来获得小的环路分频比。 减少合成器输出信号的杂散，并提供低功耗设备。
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.027 秒)
