TRAVELLING-WAVE TUBE Russian patent published in 2014 - IPC H01J25/34 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to microwave engineering. Travelling-wave tubes, which are based on the principle of continuous prolonged interaction of an electron stream with the field of a travelling electromagnetic wave in a non-resonant oscillatory system, can be used in different electronic equipment. The travelling-wave tube has an electron gun, a retarding system consisting of a chain of connected resonators, input and output waveguides with dielectric sealing partitions which separate the vacuum retarding system from non-vacuum microwave channels, a focusing system in form of electrical or permanent magnets and a collector. The retarding system is divided into multiple sections in which there are no absorbing devices and which are connected to each other though waveguide sections in which there are decoupling devices, which enable microwave power to pass in the forward direction and not in the reverse direction.

EFFECT: high gain of the tube and simple device.

1 dwg