| 摘要 |
PURPOSE: A digital broadcast receiving antenna comprising a movable matching part is provided to reduce the length of the total antenna by connecting the matching part to a lower part of a top rod antenna directly, and to increase performance of the matching part by making the matching part go far from a terminal when the antenna is extended, and to implement aesthetic feeling and rigidity of a bonding part of the matching part by restricting exposure of the matching part. CONSTITUTION: A digital broadcast receiving antenna comprising movable matching part(200) includes a bottom rod antenna part, a top rod antenna part(300) and the matching part. The bottom rod antenna part has a predetermined diameter. The top rod antenna part is extended and accommodated in the bottom rod antenna part. The matching part is combined to the bottom of the top rod antenna part elastically, and connects the top rod antenna part and the bottom rod antenna part physically and electrically using a matching device comprised in the inside. The matching part includes a first metal portion(220), matching devices(241, 242), a second metal portion(230), an insulation portion(210) and an elastic spring(250). The first metal portion is connected to the top rod antenna part. The matching devices are connected to the first metal portion. One end of the second metal portion is connected to the matching devices. The insulation portion is formed to surround the first metal portion and the matching device. One side terminated area of the insulation part is used as a stopper which prevents the top rod antenna part from being separated from the bottom rod antenna part. The elastic spring connects the second metal portion and the bottom rod antenna part electrically.
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