ARRAY ANTENNA AND ELECTROMAGNETIC WAVE DEVICE

原文（中国語）

An array antenna includes a first member having first through holes arranged along a first direction, a second member that is provided to overlap with the first member, and has second through holes and third through holes, first waveguide members each having a ridge shape, each of the first waveguide members being in contact with one of a first surface of the first member and a second surface of the second member, a first air gap functioning as a waveguide being formed between each of the first waveguide members and another of the first and the second surfaces, and a plurality of rods provided around the first waveguide members, the rods being in contact with one of the first and the second surfaces, a second air gap being formed between the rods and the another of the first and the second surfaces.