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....

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