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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >A high-power solid state amplifier for Galileo satellite system exploiting European GaN technology
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A high-power solid state amplifier for Galileo satellite system exploiting European GaN technology

机译：利用欧洲GaN技术的伽利略卫星系统大功率固态放大器

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摘要

This paper describes the development of an L-Band (f(o) = 1.575 GHz) high power and efficient solid state power amplifier (SSPA) designed for the European satellite navigation system (i.e. Galileo). The amplifier, developed in the framework of the European Project named SLOGAN, exploits the GH50-10 GaN technology available at United Monolithic Semiconductor foundry. The aim of the project is to offer, using as much as possible European technologies, a valid alternative to replace traveling wave tube amplifiers with more compact and reliable systems. All the SSPA functionalities, i.e. power supply, power conditioning and radio frequency amplification, are integrated in the developed architecture and accommodated in a single box with limited volume and mass. The required output power level is achieved by parallelizing several GaN die power bars of 12 and/or 25.6 mm. In continuous wave operating mode, the overall SSPA delivers an output power higher than 250 W at less than 2 dB of gain compression in the whole E1-band. Moreover, the registered gain and efficiency are higher than 67 dB and 54%, respectively.
机译：本文介绍了专为欧洲卫星导航系统（即Galileo）设计的L波段（f（o）= 1.575 GHz）高功率高效固态功率放大器（SSPA）的开发。该放大器是在名为SLOGAN的欧洲项目框架中开发的，它利用了美国联合单片半导体铸造厂提供的GH50-10 GaN技术。该项目的目的是提供尽可能多的欧洲技术，以更紧凑，更可靠的系统替代行波管放大器。所有SSPA功能（即电源，功率调节和射频放大）都集成在已开发的体系结构中，并容纳在体积和重量有限的单个盒子中。通过并行化12个和/或25.6毫米的几个GaN晶粒功率条，可以实现所需的输出功率水平。在连续波工作模式下，整个SSPA在整个E1频段内以小于2 dB的增益压缩提供了高于250 W的输出功率。此外，记录的增益和效率分别高于67 dB和54％。

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