| 摘要 |
<p>A waveguide antenna (100) for use with a cellular-communications base station includes a pair of parallel plate waveguides (110), a vertical horn (120) coupled to said waveguide (110), a feed (130) having at least one probe (132), and a polarizer (140) for rotating the plane of polarization of a radiation beam. A wall of the waveguide (110) forms the curved backwall reflector, which may have a parabolic or semi-parabolic shape. The probe (312) is located within the parallel plate waveguides (110) and the vertical horn (120). The feed (130) may have two probes (132) and be moveably connected to the waveguides (110) for adjusting the tilt of the radiation beam.</p> |
