| 摘要 |
PURPOSE:To attain thin profile and miniaturization by realizing a balanced tuner where an inductor component and a capacitor component are constituted integrally. CONSTITUTION:An unbalanced signal inputted to an input terminal 22 is converted into a balanced signal by an unbalanced-balanced mode converter 23, the balanced signal is fed to mixers 24, 25 and the unbalanced signal inputted to an input terminal 26 is fed to the mixers 24, 25 as it is. Then the each signal is mixed in the opposite phase mode mutually by the mixers 24, 25 and an intermediate frequency signal output of the balanced mode obtained through the mixing operation is fed to balanced terminals 28, 29 of a balanced tuner 27. The balanced tuner 27 consists of an electrode 30 having balanced terminals 28, 29 and forming a distributed inductance having a neutral point earth terminal 31 and a sub-electrode 32 having earth terminals 33, 34 at both ends and opposed to the main electrode 30 via the dielectric. |
