Novel high-power microwave vacuum ceramic window

Abstract

The invention discloses a novel high-power microwave vacuum ceramic window which comprises two cone-shaped window bodies which are symmetrically arranged in a left-and-right mode and a ceramic piece in a middle position. A circular waveguide window frame is arranged on the outer side of the ceramic piece, and the ceramic piece is arranged along the radial direction of the window frame. An outer water sleeve is sleeved on the outer side of the window frame, and a water inlet connector and a water outlet connector are welded in the outer water sleeve. The left and the right ends of the window frame and the outer water sleeve are respectively assembled and connected with round waveguides of the cone-shaped window bodies of the left side and the right side of the ceramic window. Rectangular waveguides of the cone-shaped window bodies are connected with flanges, a fire striking detecting device is arranged on the right window body, the rectangular waveguides are gradually transformed to be the round waveguides through the left window body, and the round waveguides are gradually transformed to be the rectangular waveguides through the right cone-shaped window body. The novel high-power microwave vacuum ceramic window has the advantages of being good in microwave performance, high in vacuum tightness, high in safety, high in reliability, not rigorous for machining requirements, capable of achieving one-off vacuum welding and the like, and is suitable for general application of vacuum systems.

Description

technical field [0001] The invention relates to the field of microwave technology, in particular to a novel high-power microwave vacuum ceramic window. Background technique [0002] At present, there are more and more vacuum microwave transmission systems at home and abroad, and the ceramic window is a very critical microwave device in the microwave transmission system. It isolates the air-filled part and the vacuum part of the transmission line, allowing microwave energy to pass through without reflection, and plays the role of energy transmission and gas sealing. Generally, the ceramic window directly transitions from a rectangular waveguide to a circular waveguide, resulting in a relatively narrow frequency band. During the processing, if there is a slight size deviation, it will cause serious frequency deviation, and the processing accuracy is very strict; and generally The ceramic window is made of Al 2 o 3 Material, the thermal conductivity of this material is s...

AI Technical Summary

Problems solved by technology

Generally, the ceramic window is directly transitioned from a rectangular waveguide to a circular waveguide, resulting in a relatively narrow frequency band. During the processing, if there is a slight size deviation, it will cause serious frequency deviation, and the processing accuracy is very strict; and generally The ceramic window is made of Al 2 o 3 Material, the thermal conductivity of this material is small, when the high-power microwave power passes through, it is easy to cause power deposition and crack the ceramic window; at the same time, when the sparking phenomenon occurs on the ceramic sheet, it cannot be accurately and quickly monitored and then some actions can be taken To protect the ceramic window from damage

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