| 摘要 |
PROBLEM TO BE SOLVED: To improve the sensitivity of a first frequency band by prolonging the valid length of a first antenna conductor with the sum of the conductor length of the first antenna conductor and that of a second antenna conductor to receive a first frequency band at the time of receiving it. SOLUTION: A signal received by a first antenna conductor AT1 is inputted to a receiver 20 through a coaxial cable 10 from a circuit 9 through a first connection line 6. A first coil L1 is connected between the first antenna conductor AT1 and the second antenna conductor AT2 and it has an inductance value becoming high impedance for attenuating the reception signal of the second frequency band. Thus, the first antenna conductor AT1 is insulated from the second antenna conductor AT2 and the deterioration of the sensitivity of the second frequency band is prevented at the time of receiving the second frequency band. At the time of diversity reception, a lead line 11 and the coaxial cable 13 are provided, a stronger reception signal in the reception signals of the first antenna conductor AT1 and the second antenna conductor AT2 is selected and it is inputted to the receiver 20. |
