Satellite communication system and method for dividing the coverage area thereof
    2.
    发明授权
    Satellite communication system and method for dividing the coverage area thereof 有权
    卫星通信系统及其覆盖区域划分方法

    公开(公告)号:US08145123B2

    公开(公告)日:2012-03-27

    申请号:US13127475

    申请日:2009-11-10

    IPC分类号: H04H20/71

    CPC分类号: H04B7/2041

    摘要: A beam forming apparatus of a satellite is configured to: define a perimeter of a coverage area, and define a coordinate grid of a polar coordinate system so as to divide the coverage area into a plurality of small areas; calculate coordinates of borders between basic cells in a Cartesian coordinate system, the basic cells being shaped into regular hexagons arranged to be in contact with one another along their sides and at their vertices or into circles circumscribing the regular hexagons; define a plurality of new cells by converting, through coordinate transformation, the coordinates of the borders between the basic cells in the Cartesian coordinate system into coordinates of borders in the polar coordinate system; and set amplitudes and phases to the plurality of antenna devices that are suitable to form a plurality of beams in respective directions of the plurality of new cells.

    摘要翻译: 卫星的波束形成装置被配置为:定义覆盖区域的周边,并且定义极坐标系的坐标网格,以便将覆盖区域划分成多个小区域; 计算笛卡尔坐标系中基本单元之间边界的坐标,将基本单元整形成规则六边形,布置为沿着它们的侧面和它们的顶点或围绕正六边形的圆形彼此接触; 通过坐标变换将笛卡尔坐标系中的基本单元之间的边界的坐标转换为极坐标系中边界的坐标来定义多个新单元; 并且将幅度和相位设置到适合于在多个新小区的各个方向上形成多个波束的多个天线装置。

    Space photovoltaic power generation system, power satellite, and electric power base
    3.
    发明授权
    Space photovoltaic power generation system, power satellite, and electric power base 失效
    太空光伏发电系统,电力卫星和电力基地

    公开(公告)号:US06495751B2

    公开(公告)日:2002-12-17

    申请号:US09871895

    申请日:2001-06-04

    IPC分类号: H01L31042

    摘要: A space photovoltaic generation system including a plurality of power satellites arranged in space, each of which converts electrical energy, into which sunlight has been photoelectric-converted, into a microwave, and transmits the microwave to an electric power base. The system can thus transmit a microwave of high power to the electric power base. Each of the plurality of power satellites modulates the generated microwave so as to generate an incoherent microwave before transmitting it to the electric power base, thus reducing the power density of the electric power transmitted to the electric power base on the earth and hence a loss in the total amount of energy transmitted to the electrical power base on the earth.

    摘要翻译: 一种空间光伏发电系统,其包括多个布置在空间中的功率卫星,每个功率卫星将太阳光已被光电转换的电能转换成微波,并将微波传输到电力基座。 因此,该系统可以将高功率的微波传输到电力基座。 多个功率卫星中的每一个调制所生成的微波,以便在将其发送到电力基座之前产生非相干微波,从而降低传输到地面上的电力基座的电力的功率密度,并因此降低 传输到地球上的电力基地的总能量。

    Reflector antenna
    7.
    发明授权
    Reflector antenna 有权
    反射天线

    公开(公告)号:US07081863B2

    公开(公告)日:2006-07-25

    申请号:US10526220

    申请日:2003-12-25

    IPC分类号: H01Q13/00

    CPC分类号: H01Q19/19

    摘要: A reflector antenna device includes: an auxiliary reflector 1 that receives an electric wave radiated from an opening portion by a primary radiator 3 and reflects the electric wave; and a main reflector 2 that receives the electric wave that is reflected by the auxiliary reflector 1 and radiates the electric wave to a space. In the reflector antenna device, the configurations of the auxiliary reflector 1 and the main reflector 2 are designed such that an electric power in an area of the main reflector 2 where the auxiliary reflector 1 is projected on the main reflector 2 in parallel with the radiating direction of the electric wave due to the main reflector 2 is equal 1 or lower than a predetermined first threshold value, and a radiation pattern of the antenna which is determined by the area of the main reflector 2 other than the area has a desired characteristic.

    摘要翻译: 反射器天线装置包括:辅助反射器1,其接收由初级辐射器3从开口部分辐射的电波并反射电波; 以及主反射器2,其接收由辅助反射器1反射的电波并将电波辐射到空间。 在反射器天线装置中,辅助反射器1和主反射器2的构造被设计成使得主反射器2的辅助反射体1的区域中的电力与辅助反射体2平行地投射在主反射体2上 由于主反射器2引起的电波的方向等于1或低于预定的第一阈值,并且由除了该区域之外的主反射器2的面积确定的天线的辐射图案具有期望的特性。

    Reflector antena
    8.
    发明申请
    Reflector antena 有权
    反射器电话

    公开(公告)号:US20060001588A1

    公开(公告)日:2006-01-05

    申请号:US10526220

    申请日:2003-12-25

    IPC分类号: H01Q13/00

    CPC分类号: H01Q19/19

    摘要: A reflector antenna device includes: an auxiliary reflector 1 that receives an electric wave radiated from an opening portion by a primary radiator 3 and reflects the electric wave; and a main reflector 2 that receives the electric wave that is reflected by the auxiliary reflector 1 and radiates the electric wave to a space. In the reflector antenna device, the configurations of the auxiliary reflector 1 and the main reflector 2 are designed such that an electric power in an area of the main reflector 2 where the auxiliary reflector 1 is projected on the main reflector 2 in parallel with the radiating direction of the electric wave due to the main reflector 2 is equal 1 or lower than a predetermined first threshold value, and a radiation pattern of the antenna which is determined by the area of the main reflector 2 other than the area has a desired characteristic.

    摘要翻译: 反射器天线装置包括:辅助反射器1,其接收由初级辐射器3从开口部分辐射的电波并反射电波; 以及主反射器2,其接收由辅助反射器1反射的电波并将电波辐射到空间。 在反射器天线装置中,辅助反射器1和主反射器2的构造被设计成使得主反射器2的辅助反射体1的区域中的电力与辅助反射体2平行地投射在主反射体2上 由于主反射器2引起的电波的方向等于1或低于预定的第一阈值,并且由除了该区域之外的主反射器2的面积确定的天线的辐射图案具有期望的特性。

    Antenna device for conducting two-axial scanning of an azimuth and elevation
    9.
    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

    CPC分类号: H01Q3/20 H01Q3/08 H01Q19/19

    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。

    Space photovoltaic power generation method and system
    10.
    发明授权
    Space photovoltaic power generation method and system 失效
    太空光伏发电方法与系统

    公开(公告)号:US06528719B2

    公开(公告)日:2003-03-04

    申请号:US09871984

    申请日:2001-06-04

    IPC分类号: H01L31042

    摘要: A space photovoltaic power generation system including a plurality of power satellites arranged in space, each of which converts electrical energy, into which sunlight has been photoelectric-converted, into a microwave, and transmits the microwave to an electric power base. The space photovoltaic power generation system divides the plurality of power satellites into a number of power satellite groups and adjusts the amount of phase adjustment to be made to a microwave which each of the plurality of power satellites included in each power satellite group will transmit so that a plurality of microwaves from the plurality of power satellites included in each power satellite group are in phase with one another. The beamwidth of the plurality of microwaves can be reduced without increasing the area of the aperture of a transmission antenna of each of the plurality of power satellites. If the plurality of microwaves transmitted from the plurality of power satellites included in each power satellite group interfere with microwaves transmitted from any other power satellite group, the beamwidth is reduced. To avoid the reduction in the beamwidth, each of the plurality of power satellites included in each power satellite group modulates the phase-adjusted microwave so as to generate an incoherent microwave so that the microwave does not interfere with other microwaves transmitted from any other power satellite group.

    摘要翻译: 空间光伏发电系统,其包括多个布置在空间中的功率卫星,每个功率卫星将太阳光已被光电转换的电能转换成微波,并将微波传输到电力基座。 空间光伏发电系统将多个功率卫星分成多个功率卫星组,并调整对每个功率卫星组中包含的多个功率卫星中的每一个发射的微波的相位调整量,使得 包括在每个功率卫星组中的多个功率卫星的多个微波彼此同相。 可以减少多个微波的波束宽度,而不增加多个功率卫星中的每一个的发射天线的孔径的面积。 如果从包含在每个功率卫星组中的多个功率卫星发送的多个微波干扰从任何其他功率卫星组发射的微波,则波束宽度减小。 为了避免波束宽度的减小,包括在每个功率卫星组中的多个功率卫星中的每一个调制相位调整的微波以产生非相干微波,使得微波不干扰从任何其它功率卫星发射的其他微波 组。