新型毫米波大功率器件——折叠波导行波管

折叠波导行波管是近年来涌现的一类新型毫米波大功率器件。它具有宽频带和大功率的优点，制造成本低，且可以与微波功率模块（MPM）组合实现小型化；由于紧凑的整体极靴，能对低电压电子注聚焦，因而很适合要求轻重量的场合。折叠波导行波管在短厘米波段和毫米波段具有极好的发展前景。

A New Type of Millimeter Wave High Power Devices-Folded Waveguide TWTs

A new type of millimeter wave high power devices——folded waveguide traveling wave tubes (TWTs) developed in recent years are described. The devices have many advantages, wider operating bandwidth, high power, lower fabrication cost and the miniaturization technology of the Microwave Power Module (MPM). Also because of closely spaced polepiece and the associated capability of focusing low-voltage beams, folded waveguide circuit is well suited for light weight applications. Folded waveguide TWTs have extreme good developing future in shortcentimeter wave and millimeter wave band.