| 摘要 |
PURPOSE: A log periodic antenna is provided to reduce the whole size of the antenna by reducing the number of unit elements of a ground element and a feed element. CONSTITUTION: An antenna(200) is fixed to a case(100) side. The antenna includes an upper element(210) and a lower element(220). Unit elements are aligned in different lengths. A first conducting wire and a lower conducting wire connect the unit elements. An insulator electrically insulates the upper element and the lower element. |
