| 摘要 |
FIELD: electricity.SUBSTANCE: sweep signal generation circuit contains the reference frequency source, the first frequency combining circuit with the input connected to the output of the reference frequency source which operates in the first frequency range and is designed with a possibility of formation at the output of the sweep signal in the first frequency range, the second frequency combining circuit with the input connected to the output of the reference frequency source which operates in the second frequency range differing from the first frequency range and is designed with a possibility of formation at the output of the sweep signal in the second frequency range, the multilevel switch with the input connected to the outputs of the first and second frequency combining circuits, and the control circuit connected to the first and second frequency combining circuits and the multilevel switch.EFFECT: sweep rate increase, sweep range expansion with generation of the signal characterized by high frequency spectrum.9 cl, 3 dwg |
