| 摘要 |
There is provided a sampling apparatus including a pulse generating circuit and a sampling circuit. The pulse generating circuit includes a step recovery diode and anode side and cathode side input terminals of the diode, and the sampling circuit includes a measured signal wire that inputs the measured signal, anode side and cathode side first wires of the step recovery diode that propagate the pulse signal generated from the pulse generating circuit, and a sampling section that includes a first diode for sampling, of which an anode is connected to the cathode side first wire side and a cathode is connected to the measured signal wire, and a second diode for sampling, of which an anode is connected to the measured signal wire and a cathode is connected to the anode side first wire side, in which the step recovery diode is formed on a semiconductor layer different from that on which the diodes for sampling are formed.
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