| 摘要 |
PROBLEM TO BE SOLVED: To provide a ground connection structure of a satellite broadcasting receiving converter capable of improving reliability of the ground connection structure without incurring increase in a manufacturing cost, to provide a satellite broadcasting receiving converter using the ground connection structure, and to provide a satellite broadcasting receiving antenna device using the satellite broadcasting receiving converter. SOLUTION: The ground connection structure includes a base board 2, and a frame 1 and a chassis 3 holding the base board 2 in between. A front surface side circuit pattern 5a is formed in a front surface side of the base board 2, and a back surface side ground pattern 5b is formed on the almost entire surface of the back surface side. The frame 1 is formed by die-casting, and provided with upper ribs 11 at a position corresponding to the front surface side circuit pattern 5a, projecting to a base board 2 side. The chassis 3 is also formed by die-casting. When the base board 2 is held by the frame 1 and the chassis 3 therebetween, solder 4 is interposed between the upper ribs 11 of the frame 1 and the front surface side circuit pattern 5a. COPYRIGHT: (C)2009,JPO&INPIT
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