<p>There is provided a mobile telephone assuring a high reception sensitivity over a wide band without deteriorating the design of the mobile telephone. In the mobile telephone, a helical antenna (4) operating as an antenna for television reception is formed by winding a conductive element along the external surface of the case several times at the upper end of the upper case (1). The helical antenna (4) is impedance-matched by a matching circuit (5) in a range of the order from 470 MHz to 700 MHz which is the television broadcast frequency. The matching circuit (5) is connected to a broadcast reception circuit (6). The broadcast reception circuit (6) operates as a reception circuit for receiving the television broadcast wave.</p>
申请公布号
WO2005124923(A1)
申请公布日期
2005.12.29
申请号
WO2005JP11038
申请日期
2005.06.16
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;NISHIKIDO, TOMOAKI;SAITO, YUTAKA;YAMAZAKI, YUKARI;KOYANAGI, YOSHIO;EGAWA, KIYOSHI