Satellite communication frequency conversion terminal equipment of Ku band

Abstract

The invention discloses a satellite communication frequency conversion terminal equipment of a Ku band. The satellite communication frequency conversion terminal equipment of the Ku band comprises a frequency conversion processing module used for converting a received intermediate frequency signal of an L band into a radio-frequency signal of a Ku band; a power amplification module, which comprises a preceding stage drive unit, a secondary driving unit and a last stage synthesis unit that are orderly connected, wherein the power amplification module is used for performing power amplification on the radio-frequency signal of the Ku band outputted by the frequency conversion processing module, and realizing the high power output of the radio-frequency signal of the Ku band; and a monitoring and control module used for detecting the output power of the power amplification module, and controlling a variable attenuator in the preceding stage drive unit of the power amplification module according to a comparison result with the scheduled output power, so that the output power of the power amplification module can be locked. According to the satellite communication frequency conversion terminal equipment of the Ku band provided by the invention, by setting the multistage cascaded power amplification unit, the technical problems of high-power synthesis and efficient heat dissipation can be solved, and the design of consistent and balanced amplitude and phase can be realized.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a Ku-band satellite communication high-power frequency conversion terminal equipment that can be used in a satellite communication uplink station. Background technique [0002] The Ku-band high-power frequency conversion terminal (BUC for short) is the key equipment in the field of satellite communication. In satellite communication uplink stations, the solidification of high-power frequency conversion components is an inevitable trend in today's development. The existing satellite high-power BUC products are large in size, low in efficiency, high in price and maintenance cost, and due to the limitations of microwave solid-state power devices and packaging technology, indicators such as output power, efficiency and volume need to be further improved. In short, the domestic research on Ku-band solid-state high-power frequency conversion terminals is still relative...

AI Technical Summary

Problems solved by technology

At present, although there are several solutions in the prior art that can realize the related functions of Ku-band high-power frequency conversion components, most of the solutions are realized at the expense of sacrificing the signal spectrum quality and poor product stability and reliability. The dispersion is serious, and the amplification tube is often burned

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