| 摘要 |
The present invention relates to an amplifier circuit (1; 12), comprising amplifying means (2; 2′) adapted to amplify a signal and to output the amplified signal in a first output (3; 3′), a coupling line (6; 6′) connected to the first output line (3; 3′) in a first connection point (5; 5′) and having a length so that a standing electrical wave is generated in it, and a second output line (8; 8′) coupled to the coupling line (6; 6′) in a second connection point (7; 7′) so that a power level of a resulting signal in the second output line (8; 8′) is depending on the power level of the amplified signal in the first output line (3; 3′). The present invention allows a high integration of an amplifier circuit and an integrated circuit with small size.
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