| 摘要 |
<p>PROBLEM TO BE SOLVED: To enhance the reception sensitivity of broadcast waves toward a portable terminal, by a method convenient for the user.SOLUTION: A circuit board 14 is formed so that it can be attached to a portable terminal 9. A receiving antenna 11 receives broadcast waves toward the portable terminal. A reception amplifier 12 is connected with the output terminal of the receiving antenna 11, and amplifies a received signal outputted from the receiving antenna 11. A transmission line 15 for coupling has one end connected with the output terminal of the reception amplifier 12, and formed at an electromagnetic field coupling position with an antenna 91 built in the portable terminal 9, when the circuit board 14 is attached to the portable terminal 9. A termination 16 is connected with the other end of the transmission line 15 for coupling.</p> |
