| 摘要 |
<p>The invention relates to a method and an arrangement for controlling a high-frequency power amplifier. The arrangement comprises a high-frequency power amplifier (1), a feedback line (C) between the input side and the output side of the high-frequency power amplifier (1), a control means (2) connected to the input side of the high-frequency power amplifier (1) and communicating with the feedback line, a sampling means (4) and a detector means (5) connected to the feedback line (C) between the output side and the input side of the high-frequency power amplifier (1) as well as a switching means (3) connected to the forward line (B) for bringing the high-frequency power amplifier (1) to an OFF state controlled by a control signal (17). A parallel loop (D) provided with a reference voltage feed (V`min) is connected to the feedback line (C), the loop comprising a signal adapter (13), the transfer function (G`(φ) of which is dimensioned to correspond essentially to the transfer function (G(φ) of a power control loop (A) constituted by the forward line (B) and the feeback line (C), measured at switching points of the parallel loop (D).</p> |
