General thick film type floating plate modulator

Abstract

The invention relates to a general thick film type floating plate modulator, which comprises a control component FPGA, a high-speed logic optocoupler, a driving circuit, an impulse isolation transformer, a thick film high-pressure switching circuit and a suspension power supply, wherein the FPGA uses VHDL language to modulate ultra-wide impulse into opening impulse train and truncation impulse; an isolation strip wave duct amplifier of the high-speed logic optocoupler is used for striking a light to protect the FPGA; the driving circuit adopts a high-speed driver to amplify the opening impulse train and the truncation impulse; the impulse isolation transformer comprises a primary electrode and a dual-secondary electrode; the thick film high-pressure switching circuit is composed of an opening tube and a truncation tube auxiliary circuit; the opening impulse train and the truncation impulse are transmitted to the thick film high-pressure switching circuit through the impulse isolation transformer; and the on / off of the opening tube and the truncation tube are switched to realize compatibility of the ultra-wide impulse and a narrow impulse. The invention adopts software language to realize opening / parameters adjustment of the truncation impulse and uses reference level of a low-pressure high-efficiency inverter to adjust positive bias so as to realize generality and interchangeability.

Description

technical field [0001] The present invention relates to a microwave power amplifier, and further relates to a pulse floating plate modulator, in particular to a general-purpose thick-film floating plate modulator, which is mainly used to control the on-off of electron beams in gate-controlled or focus-controlled traveling wave tubes, thereby Complete the output of different pulse signal forms of the traveling wave tube amplifier. Background technique [0002] Gate-controlled or focusing polar-controlled traveling-wave tube amplifiers have been widely used in modern radar systems because of their high reliability, large instantaneous bandwidth, and flexible modulation methods. As an important part of gate-controlled or focus-controlled TWT amplifiers, the quality of the floating plate modulator determines the performance and reliability of the entire transmitter to a large extent. The pulse floating plate modulator is the main component of the gate-controlled or focus-contro...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to develop a general-purpose thick-film floating plate modulator in view of the shortcomings of current floating plate modulators, such as narrow or extremely wide pulse compatibility, poor interchangeability, complex structure, and large volume. Board modulator, which is compatible with extremely wide and narrow pulses at the same time, has the advantages of good output waveform, high reliability, small size, light weight, and strong versatility, and can meet the needs of different grid-controlled or focus-controlled traveling wave tube amplifiers requirements

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