具有从1千兆赫、20瓦到3千兆赫、5瓦水平的微波功率晶体管已在市场出售。已经作出了具有宽带匹配网络的晶体管管壳,使功率放大器的带宽达到了数百兆赫。解决了一些可靠性问题,例如,热斑的形成,功率的不均匀和金属徒动等等。 Microwave power transistors with levels of 1 gigahertz, 20 watts to 3 gigahertz, and 5 watts are on the market. Transistor housings with broadband matching networks have been made that bring the power amplifier bandwidth to hundreds of megahertz. Solve some reliability issues, such as the formation of hot spots, uneven power and metal movement and so on.