| 摘要 |
A multi-pattern reflector antenna for generating first and second antenna patterns from first and second RF signals having first and second frequencies of operation respectively. The antenna includes a reflector having a focal point, first and second subreflectors configured to image the focal point at first and second preselected locations respectively; and, first and second feeds positioned at the first and second preselected locations. The first and second feeds are configured to operate at the first and second frequencies of operation respectively and are operative to generate first and second radiated RF signals from the first and second RF signals respectively. The first and second subreflectors partially overlap each other with the first subreflector configured to be a frequency selective structure which reflects RF signals having the first frequency of operation and passes RF signals having the second frequency of operation. The second subreflector is configured to reflect RF signals having the second frequency of operation and pass RF signals having the first frequency of operation. <IMAGE> |
