| 摘要 |
PURPOSE:To improve the sensitivity for the antenna at an AM band and to simplify the structure. CONSTITUTION:A 1st element 1 arranged coaxially receives a signal at an AM band and a 2nd element 2 receives a signal at AM/FM band. In order to synthesize radio waves at the AM band received by the 1st and 2nd elements 1,12, a filter 5 connected to a feeder 4 connected to the 1st element 1 extracts a radio wave of the AM band and the radio wave is synthesized with a radio wave at the AM band received by the 2nd element 2. The 1st and 2nd elements 1, 2 are insulated with each other. |
