| 摘要 |
PURPOSE:To simplify the antenna constitution by arranging feeding elements of both the 1st and 2nd multi-beam antennas so that the beams irradiated from the antennas are made adjacent to each other. CONSTITUTION:The beams 14a-14c irradiated from feeding horns 12a-12c of the 1st multi-beam antenna are made adjacent respectively to the beams 15a-15c irradiated respectively from the feeding horns 13a-13c of the 2nd multi-beam antennas as 14a, 15a, 14b, 15b, 14c, 15c. Thus, the zones covered by each beam are not made adjacent to the cover zone from the same multi- beam antenna. Thus, number of feeding horns 12a-13c is made less depending on the number of the antennas and the angle between the beams is taken considerably large, then the accuracy is improved by comparatively simple constitution.
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