首页>
外国专利>
SIGNAL AMPLIFICATION CIRCUIT FOR IMPROVING RELIABILITY AND QUALITY OF AMPLIFICATION SIGNALS, TRANSMITTING ANTENNA, METHOD FOR CONTROLLING OUTPUT LEVELS OF THE SAME, INPUT SIGNAL MONITORING PROGRAM, AND GAP-FILLER DEVICE
SIGNAL AMPLIFICATION CIRCUIT FOR IMPROVING RELIABILITY AND QUALITY OF AMPLIFICATION SIGNALS, TRANSMITTING ANTENNA, METHOD FOR CONTROLLING OUTPUT LEVELS OF THE SAME, INPUT SIGNAL MONITORING PROGRAM, AND GAP-FILLER DEVICE
PURPOSE: A signal amplification circuit for improving reliability and quality of amplification signals, a transmitting antenna, a method for controlling output levels of the same, an input signal monitoring program, and a gap-filler device are provided to enhance the quality of the amplification signals by removing generation of undesired signals such as noise. CONSTITUTION: A signal amplification circuit includes an amplifier(7) having multistage amplification elements, an automatic level controller(15a) for controlling output levels of transmission signals of the amplifier, and a gain controller(6) for controlling the attenuating amount of transmission signals according to control signals of the automatic level controller. A control potential fixing circuit(5d) is connected to a control terminal in order to fix the electric potential of the control signal. The damage of the amplification elements is prevented by controlling the amount of the transmission signals applied to the amplifier.
展开▼
