| 摘要 |
PROBLEM TO BE SOLVED: To reduce coupling in air in a shield case of a radio apparatus provided with a filter. SOLUTION: The shield case 6 accommodates the filter 2 and its peripheral components 3, 4, and 5 which are arranged on a board 1. In a ceiling plate 6a of the shield case, a part of the plate 6a above the filter 2 is made a flat part 6c. A space between the filter 2 and the ceiling plate 6a of the shield case 6 is decreased, thereby reducing the coupling in air. COPYRIGHT: (C)2003,JPO
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