发明名称 TUNING TYPE ANTENNA MODULE WITH FREQUENCY CORRECTION CIRCUIT AND MANUFACTURING METHOD THEREOF
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a tuning type antenna module with a frequency correction circuit for reducing antenna characteristic dispersion of a tuning frequency or the like. <P>SOLUTION: The tuning type antenna module 1 is provided in which a variable capacitor means 3 is connected to an antenna element 2, capacitance of the variable capacitor means 3 is varied with a control voltage of a frequency control power source 6, and a tuning frequency is changed in accordance with a frequency of a radio wave received by the antenna element 2, wherein between the frequency control power source 6 and the variable capacitor means 3, a voltage dividing circuit 7 constituted of resistance for dividing the control voltage is connected, and the tuning frequency is corrected by the voltage dividing circuit 7. <P>COPYRIGHT: (C)2009,JPO&INPIT</p>
申请公布号 JP2009049868(A) 申请公布日期 2009.03.05
申请号 JP20070215743 申请日期 2007.08.22
申请人 HITACHI CABLE LTD 发明人 SUGIYAMA TAKEHIRO
分类号 H01Q9/14;H01P1/00;H01Q1/24;H01Q1/38;H01Q9/40;H04B1/18 主分类号 H01Q9/14
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