| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem of a conventional array antenna that since an electronic unit is the same component, the antenna aperture distribution becomes uniform distribution, and the sidelobe level increases, and even if trying to achieve a density distribution by thinning, a plurality of kinds of electronic unit are required to be prepared, because the position of excitation/non-excitation element antenna depending on the density distribution is different for each electronic unit.SOLUTION: Between an element antenna and an electronic unit, a connection cable connected with an excitation element antenna, and an interface having a termination resistor connected with a non-excitation element antenna are provided, and two kinds of electronic unit, i.e., a low output electronic unit consisting of a low output transmission reception module, and a high output electronic unit consisting of a high output transmission reception module, are prepared. A desired antenna aperture distribution can be formed without changing the wiring, by selecting the electronic unit appropriately, and attaching to a predetermined mounting position of the interface. |
