MULTIBEAM ANTENNA ASSEMBLY Russian patent published in 2007 - IPC H01Q19/15 

FIELD: communication and detection systems for digital or simultaneous survey of desired spatial sector in elevation angle.

SUBSTANCE: proposed multibeam antenna assembly has mirror and multibeam feed made in the form of multibeam antenna and horn whose radiation phase line is matched with mirror focal line; mirror is made in the form of section cut out of vertical parabolic cylinder. Aperture plane of multibeam antenna is disposed at angle to parabolic cylinder focal line greater than angle between normal to multibeam antenna aperture and maximum of multibeam antenna partial directivity pattern in direction to bottom edge of mirror. Bottom edge of line horn neck is aligned with that of multibeam antenna aperture; side and top edges of multibeam antenna aperture are aligned with respective edges of line horn neck by means of metal strips. Size of line-horn neck side edge is found from equation given in invention specification.

EFFECT: ability of shaping fan directivity patterns in vertical plane, reduced distortions, simplified design.

1 cl, 5 dwg