| 摘要 |
In a radio transmitter responsive to an input signal for transmitting an output signal through a coupling circuit and an antenna (13) with a radio channel assigned to the output signal, the power level of the output signal is kept constant with reference to a frequency characteristic of the antenna (13) and/or the coupling circuit. The output signal is produced from an amplifier section (11,12) controlled by a power controller (18) controlled by a reference voltage from a reference voltage generator (27) controlled by a reference voltage controller (23). The reference voltage controller (23) produces a reference voltage control signal which is based on the frequency characteristic and which is used for adjusting the reference voltage. In addition, the reference voltage control signal may be produced with reference to a temperature characteristic of a detector (16) for detecting the output signal. |
