DESIGN OF QUASI-OPTICAL CIRCUIT FOR MULTI-FREQUENCY MILLIMETER VLBI RECEIVING SYSTEM

摘要

PURPOSE: A multi frequency millimeter wave VLBI observation reception system and a quasi-optics system circuit design method therefore are provided to observe the phase change of beam. CONSTITUTION: A third low pass filter reflects and passes through the beam reflected from a sixth mirror. The seventh, fifteenth, sixteenth and eighth mirrors successively reflect the beam passed through the third low pass filters. A third quasi-optics receiver(123) receives the beam reflected to from the eighth mirror. The ninth, thirteenth, fourteenth and tenth mirrors successively reflect the beam reflected to from the third low pass filters. A fourth quasi-optics receiver(124) receives the beam reflected to from the tenth mirror.