| 摘要 |
Antenna for use within frequency bands lying between 6 GHz and more than 20 GHz. The antenna comprises: a main reflector 1 shaped like a gutter; a secondary reflector 2 formed of a metal band arranged at the back of the gutter and bent into an arc shape with its ends 20, 21 close to the ends of the gutter; and a primary source arranged behind the main reflector and formed of a rectangular guide which emerges into an opening 30 drilled in the bottom and in the middle of the gutter. Application, in particular, to antennas for systems for surveillance by electromagnetic wave barriers and to antennas for receiving satellite transmissions. <IMAGE>
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