| 摘要 |
The part units are arranged a cover surface and are connected at one end where their electrical feed is effected. Each part unit comprises a number of electrical conductors (8-10, 11-13, 14-16) forming a group with the same length of conductors within one group and different lengths of conductors in different groups. The electrical conductors (14, 16) in at least the group with the longest length of conductors are divided into a number of branches (23-25) in the end remote from the feed-in end.The electrical conductors in at least the group with the longest length of conductors incorporate low pass filters. The low pass filters are placed at the level of the shorter conductor ends remote from the feed-in end. |
