公开(公告)号：US20120169557A1

公开(公告)日：2012-07-05

申请号：US13338286

申请日：2011-12-28

申请人： Guy NAYM ,  Hanan KEREN ,  Izik KREPNER ,  Shiomo LEVI

发明人： Guy NAYM ,  Hanan KEREN ,  Izik KREPNER ,  Shiomo LEVI

IPC分类号： H01Q15/24

CPC分类号： H01Q13/0241 ,  H01P1/17 ,  H01Q5/55 ,  H01Q15/244 ,  H01Q19/136 ,  H01Q25/04

摘要： A waveguide has distal, medial and proximal sections. The distal and medial sections rotate relative to each other and to the proximal section. In a first configuration, the waveguide transforms linearly polarized electromagnetic radiation at the proximal end of the proximal section to linearly polarized electromagnetic radiation at the distal end of the distal section and vice versa. In a second configuration, the waveguide transforms linearly polarized radiation at the proximal end of the proximal section into circularly polarized electromagnetic radiation at the distal end of the distal section and vice versa. Preferably, the distal and medial sections include respective eight-wavelength polarizers and the proximal section includes a quarter-wavelength polarizer. A multi-band antenna feed includes two such waveguides, one nested inside the other, for transforming electromagnetic radiation of respective frequency bands.

摘要翻译： 波导具有远端，内侧和近端部分。 远侧和中间部分相对于彼此和近端部分旋转。 在第一构造中，波导将近端部分的近端处的线偏振电磁辐射转换成在远端部分的远端处的线偏振电磁辐射，反之亦然。 在第二配置中，波导将近端部分的近端处的线性偏振辐射转换成远端部分的远端处的圆极化电磁辐射，反之亦然。 优选地，远侧和中间部分包括相应的八波长偏振器，并且近侧部分包括四分之一波长的偏振器。 多频带天线馈电包括两个这样的波导，一个嵌套在另一个中，用于转换各个频带的电磁辐射。

公开(公告)号：US20110057849A1

公开(公告)日：2011-03-10

申请号：US12555007

申请日：2009-09-08

申请人： Guy NAYM ,  Hanan KEREN

发明人： Guy NAYM ,  Hanan KEREN

IPC分类号： H01Q19/00 ,  H01Q3/00 ,  H01Q13/00 ,  H01Q9/16

CPC分类号： H01Q1/247 ,  H01P1/161 ,  H01Q13/02 ,  H01Q19/132

摘要： A ground station antenna includes a LNB with at least one dipole, a feed horn, a waveguide between the LNB and the feed horn, and a rotation mechanism. By rotating a portion of the waveguide, the polarization of an electromagnetic wave propagating between the LNB and a satellite is transformed to match the polarization to (one of) the dipole(s) and to an antenna on the satellite. Another ground station antenna includes a main waveguide, two mutually orthogonal branch waveguides, a coupling mechanism for coupling two orthogonal antenna dipoles to the proximal end of the waveguide, and a transformation mechanism that transforms the polarization of an electromagnetic wave propagating between the branch waveguides and a satellite via the antenna dipoles to match the polarization to one of the branch waveguides and to an antenna on the satellite.

摘要翻译： 地面站天线包括具有至少一个偶极子的LNB，馈电喇叭，LNB和馈电喇叭之间的波导，以及旋转机构。 通过旋转波导的一部分，在LNB和卫星之间传播的电磁波的极化被变换以将极化与偶极子和天线之间的天线匹配。 另一个地面站天线包括主波导，两个相互正交的分支波导，用于将两个正交天线偶极耦合到波导的近端的耦合机构，以及变换机构，其将在分支波导之间传播的电磁波的极化和 通过天线偶极子的卫星将偏振匹配到分支波导之一和卫星上的天线。