| 摘要 |
PROBLEM TO BE SOLVED: To provide an array antenna capable of securing a large antenna surface when a plurality of antenna units are arranged side by side, and improving the radio-wave emission characteristics. SOLUTION: A plurality of antenna units 100, 200 are arranged in parallel to one another and are combined with one another. The antenna units 100, 200 include a plurality of emission waveguides 120, 220 having a plurality of emission slots 121, 221 in the tube axis direction, and power-feed waveguides 130, 230 arranged on the back faces of the emission waveguides 120, 220 and connected to the respective emission waveguides 120, 220 by power-feed slots 131, 231, respectively. The power-feed waveguides 130, 230 of the antenna units adjacent to each other are continuously connected to each other. The positions at which the power-feed waveguides 130, 230 of the antenna units adjacent to each other are continuously connected to each other are located, at parts separated by a quarter of the in-tube wavelength from the power-feed slots 131, 231 at the ends. COPYRIGHT: (C)2011,JPO&INPIT |
