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    • 1. 发明申请
    • STRAP-TYPED DMB ANTENNA APPARATUS FOR MOBILE COMMUNICATION TERMINAL
    • 用于移动通信终端的STRAP型DMB天线装置
    • WO2009035180A1
    • 2009-03-19
    • PCT/KR2007/004547
    • 2007-09-19
    • DIGIWAVE CO., LTDSONG, Yong -Il
    • SONG, Yong -Il
    • H01Q1/24
    • H01Q1/273H01Q1/085H01Q1/44
    • The present invention relates to a DMB antenna apparatus for a mobile communication terminal, and more particularly to a strap-typed DMB antenna apparatus for a mobile communication terminal capable of receiving DMB signals. The strap-typed DMB antenna apparatus in accordance with the present invention comprises a flexible circuit board folded in an extending direction thereof; an electrically conductive radiator for receiving DMB signals which is printed on one side of the flexible circuit board; and a sliding tab capable of sliding in the extending direction of the folded circuit board, uniting the folded circuit board, wherein a frequency band of the DMB signals received by the radiator is changed by sliding the sliding tab. Accordingly, in accordance with the present invention, there is provided an antenna with an extended electrical length so as to be suitable for a transmission or reception of low frequency signals while keeping the size of the antenna small. Alternatively, in accordance with the present invention, there is provided an antenna apparatus properly adjusting the resonant frequency and bandwidth thereof is provided so as to excellently receive the total DMB channel in a VHF band by extending the electrical length of the antenna even if a received bandwidth is narrow. Further, in accordance with the present invention, there is provided a strap-typed DMB antenna apparatus usually used for a hand strap in addition to a DMB receiving antenna for a mobile communication terminal and thereby the portability and convenience of the DMB antenna is improved.
    • 本发明涉及一种用于移动通信终端的DMB天线装置,更具体地涉及一种能够接收DMB信号的移动通信终端的带式DMB天线装置。 根据本发明的带式DMB天线装置包括沿其延伸方向折叠的柔性电路板; 用于接收DMB信号的导电散热器,其被印刷在柔性电路板的一侧上; 以及能够在折叠电路板的延伸方向上滑动的滑动片,将折叠电路板结合在一起,其中由散热器接收的DMB信号的频带通过滑动滑动片而改变。 因此,根据本发明,提供了一种具有延长的电气长度的天线,以便适合于在保持天线尺寸的同时保持低频信号的传输或接收。 或者,根据本发明,提供了适当调整谐振频率和带宽的天线装置,以便通过延长天线的电长度即使接收到的天线也能够极好地接收VHF频带中的总DMB信道 带宽窄。 此外,根据本发明,除了用于移动通信终端的DMB接收天线之外,还提供了通常用于手带的带式DMB天线装置,从而提高了DMB天线的便携性和便利性。