The higher requirement for TWT is also being promoted by modern satellite communication, space communication, phase array radar and etc. , from the aspect of smaller size, longer age, higher reliability and so on.

• 现代卫星通信、空间通信、相控阵雷达等技术的发展又从小型化、高寿命、高可靠性等方面对行波管提出了更高的要求。