| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device that has high mechanical strength at a connection region of an antenna element and a tri-plate line, provides for ease of assembly, and keeps an electrical characteristic intact at the connection region.SOLUTION: The antenna device using as a feed line a tri-plate line 4 so constructed that a central conductor 2 is sandwiched between two ground plates 3 via an air layer is provided with a feed pin 6 of a conductor having one end connected to the central conductor 2 and the other end extended out via a through hole 42 formed in the ground plate 3. An antenna element 51 is connected to the feed pin 6, so that the antenna element 51 is electrically connected to the central conductor 2. |
