C-band space power synthesis solid-state power amplifier

Abstract

The invention discloses a C-band space power synthesis solid-state power amplifier and relates to the field of satellites and microwave communication. The C-band space power synthesis solid-state power amplifier is composed of an upper cavity, an H-shaped middle press block and a lower cavity, wherein the upper cavity and the lower cavity are vertically symmetrically arranged and are of the same structure. The upper cavity is provided with an upper substrate, the upper substrate is composed of a microstrip printed board, two power amplification units, four microstrip separators, four separator press blocks, two power amplification unit press blocks and four feedthru capacitors, wherein the upper substrate is of an axisymmetric structure relative to the connecting line of the two power amplification units. The C-band space power synthesis solid-state power amplifier adopts a space power synthesis technology, an input / output interface adopts a waveguide form, the inside is of a waveguide microstrip conversion structure, and a signal transmitted in the waveguide is converted to a microstrip line, is amplified and then is radiated to the waveguide through a micro strip to waveguide structure. The structural form reduces transmission loss, increases synthesis efficiency, reduces the size and lowers thermal design difficulty.

Description

technical field [0001] The invention relates to the fields of satellite communication, microwave communication and scattering communication, in particular to a solid-state power amplifier using space power synthesis technology, which can be widely used in communication systems such as satellite communication and microwave communication. Background technique [0002] In recent years, with the rapid development of wireless communication technology, the requirements for the bandwidth, efficiency and output power of the power amplifier are also increasing day by day. However, solid-state power devices are limited by the physical characteristics of their own semiconductors and processing technology, heat dissipation, impedance matching and other issues. The output power of the device is very limited, and the higher the operating frequency, the lower the output power level of a single chip. Therefore, a plurality of solid-state power devices are used for power synthesis to effecti...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a C-band spatial power synthesis solid-state power amplifier, which solves the shortcomings of low output power of a single power device, large loss and low synthesis efficiency in the prior art.

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