Design of Nanosecond-level Fast Time Response Preamplifier [纳秒级快时间响应前置放大器设计]

作者：Liu Z.-Q.; Liu L.-C.; Liu D.-M.^*; Hu H.-P.; Liang X.; Zhong G.-Q.; Hong B.; Zang Q.

来源：Nuclear Electronics & Detection Technology, 2022, 42(2): 345-349.

• Fast Response Time
• Preamplifier
• SiC Detector
• Ultra-Wideband

A ns-level fast time response preamplifier is designed. The amplifier is composed of a two-stage cascaded RF amplifier chip and an LC low-pass filter circuit. Using ADS software to simulate the preamplifier, the simulation results show that the maximum gain of the designed amplifier within 1 M-2 GHz is 45 dB, and the input and output return loss are less than -10 dB; the amplifier is detected with JW-SCN5 Schottky silicon carbide The 241Am-Be neutron source was used for the nuclear impulse signal response test. The test results showed that the output signal rise time of the preamplifier was about 1ns.

• 单位
  合肥工业大学