| 摘要 |
PURPOSE: A time delay apparatus is provided to prevent distortion of a signal due to a time difference by controlling accurately a delay time. CONSTITUTION: A power supply portion(10) is used for supplying electric power to a delay control portion(20), an oscillation portion(30), a down converter portion(40), the first delay portion(50), the second delay portion(60), the third delay portion(70), the fourth delay portion(80), and an up converter portion(90). The down converter portion(40) is used for converting an inputted RF signal to an IF signal. The up converter portion(90) is used for converting an inputted IF signal to the RF signal. The oscillation portion(30) is used for transmitting a frequency setup signal of a PLL(Phase Locked Loop) to the down converter portion(40) and the up converter portion(90). The first to the fourth delay portions(50-80) are used for delaying a signal of the down converter portion(40) and outputting the delayed signal to the up converter portion(90). The delay control portion(20) is used for outputting operating signals to the first to the fourth delay portions(50-80) and a frequency setup control signal to the oscillation portion(30). |
