“在我们得到与现有管可相竞争的电子束一等离子体放大器之前,与等离子体的直接耦合是需要解决的一个基本问题”。在微波放大中电子束等离子体的相互作用是一个此较新的概念。电子束等离子体放大器(BPA)与一般的管子相此有许多优点,特别是在毫米波段。最主要的是其单位长度上增益 “Before we got an electron beam-plasma amplifier that competed with existing tubes, direct coupling with the plasma was a fundamental issue that needed to be addressed.” The interaction of electron beam plasma in microwave amplification is a relatively new concept. Electron beam plasma amplifiers (BPA) have many advantages over conventional tubes, especially in the millimeter wave band. The most important thing is the gain per unit length