Narrow-pulse generation circuit

Abstract

The invention relates to a pulse generation circuit, especially to a narrow-pulse generation circuit, particularly to a circuit triggered to generate ps-scaled ultra-wide-band narrow pulses. According to the technical scheme provided by the invention, the narrow-pulse generation circuit comprises a high-speed amplifier used for receiving a trigger signal and outputting a square wave signal, wherein an output end of the high-speed amplifier is connected with a high-speed digital drive circuit and is grounded through a micro-strip delay line, and the high-speed digital drive circuit outputs required pulses. The frequency coverage of the narrow-pulse generation circuit for generating a narrow-pulse signal is high and up to 4GHz; the narrow-pulse generation circuit can be triggered continuously to work so as to generate dense narrow pulses; the narrow-pulse generation circuit is flexible to use and can generate a required waveform according to sequential logic so as to obtain ps-scaled narrow pulses; the narrow-pulse generation circuit is simple in structure and high in reliability; and as the output power is moderate, the narrow-pulse generation circuit is convenient to use and can be widely applied to the fields such as radar, communications and electronic countermeasure.

Description

technical field [0001] The invention relates to a pulse generating circuit, in particular to a narrow pulse generating circuit, in particular to triggering and generating a ps (picosecond) level ultra-wideband narrow pulse circuit. Background technique [0002] At present, commonly used narrow pulse generating circuits include Marx (Marx circuit) circuit and comb spectrum circuit. The Marx circuit is mainly composed of avalanche transistors, integral capacitors and other components. The pulse adopts a parallel and simultaneous starting method. By adjusting the amplitude of the trigger pulse of each tube, the avalanche delay time existing in the triggering of the single-tube circuit is eliminated, and the avalanche multiplication effect of each transistor is simultaneously generated, which speeds up the process of discharging the load of the capacitor box, and obtains Very steep fast leading edge pulse. The amplitude of the output waveform of this pulse generator can reach ...

AI Technical Summary

Problems solved by technology

This circuit can generate narrow pulses with a high repetition rate, but the output amplitude is very low, usually only a few millivolts, which is difficult to apply

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