| 摘要 |
The antenna set with multi-beam characteristics consists of an antenna and a source that lights the antenna mirror. Unique characteristics: It contains a radiating set (1), located under the top edge of the mirror (3), equipped with two double-dipole radiators, fed with identical signals with opposite phases. It also contains the system (2) that lights the antenna mirror (3), which consists of two external radiators (8) and an internal radiator (9). The latter is positioned symmetrically between the former two, and set back with respect to the former by a half of the emitted wave length. The internal radiator (9) is separated on both sides with vertical internal screens (7). The external radiators (8) are separated with vertical external screens (6). Moreover, both sets of radiators (8 and 9) are shielded from the top with a flat screen (5). The external radiators (8) of the lighting set (2) and the double-dipole radiators of the radiating set (1) are connected through at least two systems of signal-vector component systems (4), by means of cable lines with identical electrical length and transmission loss.
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