| 摘要 |
This invention provides an antenna device and arrival angle calculating device able to shorten the time necessary for calculating an arrival angle by reducing the computational load. An antenna device (11) provided with a plurality of antenna elements (111, 112), a reflective element (114) disposed separated by a predetermined distance from the back side of the antenna elements (111, 112), and a waveguide element (113) disposed separated by a predetermined distance from the front side of the antenna elements (111, 112); said antenna device being characterized in that the antenna elements (111, 112), the waveguide element (113), and the reflective element (114) are disposed so that the relationship between the arrival angle of a radio wave using the antenna elements (111, 112) as a reference and the phase difference of the radio wave between the plurality of antenna elements (111, 112) is linear. |
