公开(公告)号：US08053720B2

公开(公告)日：2011-11-08

申请号：US12432151

申请日：2009-04-29

Applicant: Seog Tae Han ,  Jung Won Lee ,  Do Heung Je ,  Moon Hee Chung

Inventor： Seog Tae Han ,  Jung Won Lee ,  Do Heung Je ,  Moon Hee Chung

IPC: G01J1/00

CPC classification number: H01Q15/0033 ,  H01Q19/191

Abstract: Provided are a multi-frequency millimeter-wave very long baseline interferometry (VLBI) receiving system and a method of designing a quasi optical circuit for the multi-frequency millimeter-wave VLBI receiving system. The multi-frequency millimeter-wave VLBI receiving system includes a plurality of low pass filters, offset ellipsoidal mirrors, and flat mirrors for dividing a cosmic radio wave signal incident through the troposphere. A beam propagated from a celestial point is introduced into a receiver room via a 45-degree flat mirror and is divided into a plurality of beams by using a plurality of low pass filters having different bandwidths and mirrors, and the divided beams are transmitted to corresponding quasi-optical receivers having different bandwidths via a plurality of mirrors. Therefore, radio astronomic observations can be simultaneously performed in 22 GHz, 43 GHz, 86 GHz, and 129 GHz bands, and phase variations of electromagnetic waves in the bands can be compensated for.

Abstract translation: 提供了一种多频毫米波非常长的基线干涉测量（VLBI）接收系统和一种为多频毫米波VLBI接收系统设计准光电路的方法。 多频毫米波VLBI接收系统包括多个低通滤波器，偏移椭球镜和平面镜，用于分割通过对流层入射的宇宙无线电波信号。 从天体传播的光束通过45度平面镜被引入接收室，并且通过使用具有不同带宽和反射镜的多个低通滤波器被分成多个光束，并且将分割的光束传输到相应的 通过多个反射镜具有不同带宽的准光接收机。 因此，可以在22 GHz，43 GHz，86 GHz和129 GHz频段同时进行无线电天文观测，可以补偿频带中的电磁波的相位变化。

公开(公告)号：US20100127161A1

公开(公告)日：2010-05-27

申请号：US12432151

申请日：2009-04-29

Applicant: Seog-Tae HAN ,  Jung-Won LEE ,  Do-Heung JE ,  Moon-Hee CHUNG

Inventor： Seog-Tae HAN ,  Jung-Won LEE ,  Do-Heung JE ,  Moon-Hee CHUNG

IPC: G01J1/00

CPC classification number: H01Q15/0033 ,  H01Q19/191

Abstract: Provided are a multi-frequency millimeter-wave very long baseline interferometry (VLBI) receiving system and a method of designing a quasi optical circuit for the multi-frequency millimeter-wave VLBI receiving system. The multi-frequency millimeter-wave VLBI receiving system includes a plurality of low pass filters, offset ellipsoidal mirrors, and flat mirrors for dividing a cosmic radio wave signal incident through the troposphere. A beam propagated from a celestial point is introduced into a receiver room via a 45-degree flat mirror and is divided into a plurality of beams by using a plurality of low pass filters having different bandwidths and mirrors, and the divided beams are transmitted to corresponding quasi-optical receivers having different bandwidths via a plurality of mirrors. Therefore, radio astronomic observations can be simultaneously performed in 22 GHz, 43 GHz, 86 GHz, and 129 GHz bands, and phase variations of electromagnetic waves in the bands can be compensated for.

Abstract translation: 提供了一种多频毫米波非常长的基线干涉测量（VLBI）接收系统和一种为多频毫米波VLBI接收系统设计准光电路的方法。 多频毫米波VLBI接收系统包括多个低通滤波器，偏移椭球镜和平面镜，用于分割通过对流层入射的宇宙无线电波信号。 从天体传播的光束通过45度平面镜被引入接收室，并且通过使用具有不同带宽和反射镜的多个低通滤波器被分成多个光束，并且将分割的光束传输到相应的 通过多个反射镜具有不同带宽的准光接收机。 因此，可以在22 GHz，43 GHz，86 GHz和129 GHz频段同时进行无线电天文观测，可以补偿频带中的电磁波的相位变化。