首页>
外国专利>
IMAGING ANTENNA SYSTEMS WITH COMPENSATED OPTICAL ABERRATIONS BASED ON UNSHAPED SURFACE REFLECTORS
IMAGING ANTENNA SYSTEMS WITH COMPENSATED OPTICAL ABERRATIONS BASED ON UNSHAPED SURFACE REFLECTORS
展开▼
机译:基于未变形表面反射镜的具有补偿光学像差的成像天线系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
An offset imaging antenna system with compensated optical aberrations comprises a main a paraboloid reflector, a first paraboloid sub reflector, and a first feeding array as an arrangement of first feed array elements to illuminate or to be illuminated by the first sub reflector. The main reflector and the first sub reflector are confocal by sharing a common focal point. The first feeding array has a curved shape that corresponds to a first equivalent array of magnified image feed elements lying on a plane crossing the main optical centre and perpendicular to the main bore-sight axis, all the first feed array elements being positioned as to provide a planar distribution of the positions of the image feed elements onto the first equivalent array after a second reflection by the main reflector with a central image point coinciding with the main reflector optical centre under a maximum illumination condition.
展开▼