Abstract: A sampling circuit for compensating the phase difference of a sampling pulse due to a temperature variation to accurately sample input signals is provided. The sampling circuit samples received input signals. The sampling circuit includes a pulse generator for generating a pulse signal according to a timing at which an input signal should be sampled, a step recovery diode for outputting a sampling pulse responsive to the pulse signal, a detector for detecting the value for the input signal according to the sampling pulse, a temperature detecting circuit for detecting the temperature around the step recovery diode and a temperature compensating unit for controlling a timing at which the step recovery diode outputs the sampling pulse based on the temperature detected by the temperature detecting circuit.

Abstract: 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.

Abstract: A sampling circuit for compensating the phase difference of a sampling pulse due to a temperature variation to accurately sample input signals is provided. The sampling circuit samples received input signals. The sampling circuit includes a pulse generator for generating a pulse signal according to a timing at which an input signal should be sampled, a step recovery diode for outputting a sampling pulse responsive to the pulse signal, a detector for detecting the value for the input signal according to the sampling pulse, a temperature detecting circuit for detecting the temperature around the step recovery diode and a temperature compensating unit for controlling a timing at which the step recovery diode outputs the sampling pulse based on the temperature detected by the temperature detecting circuit.