新型半导体功率器件在现代雷达中的应用研究(Ⅰ)

目前第一代半导体功率器件的制造技术和应用技术已趋于成熟,S波段及以下波段功率器件的输出功率、工作效率和可靠性指标都已达到相当高的水平。近年来第二代半导体功率器件的制造技术和应用技术发展迅速,S波段、C波段和X波段的器件已经形成了一定的系列化商品。但是面对现代雷达等新一代电子装备的需求,半导体功率器件在高功率、高效率和高频率等方面与真空管器件相比仍逊色许多,Si和GaAs功率器件的输出功率工作频率短期内不大可能有大的提高,而第三代半导体功率器件——宽禁带半导体器件固有的宽禁带、高击穿场强和良好的热稳定性等特性,决定了其可以输出更高功率、工作在更高频率、具有更高效率,并可更好地满足现代雷达的要求。

Research on the Application Of Novel Semiconductor Power Devices in Modern Radar

The manufacture and application technology of first generation semiconductor power devices are in mature status,the power devices operating in S band or below have dramatic level of output power,high operation efficiency and reliability.With the rapid development of manufacture and application technology of second generation semiconductor power devices in recent years,the S band,C band and X band devices form a series of commercial products.However,in the need of new generation electronic equipment,such as ...