Wide-band micro-wave kit shaped energy delivery window

Abstract

A boardband microwave box-shaped energy transporting window, which belongs to the technical field of microwave device, relates to a microwave energy transporting window in microwave tubes. The microwave energy transporting window is composed of two rectangular waveguide segments (1), a circular waveguide segment (2) and a dielectric window disk (3), wherein the rectangular waveguide segments (1) are respectively connected to both ends of the circular waveguide segment (2); the dielectric window disk (3) is hermetically welded at the middle of the circular waveguide segment (2); and the diameter of the circular waveguide segment (2) is determined according to the cutoff frequency formula of TE11'O'mode to make the cutoff frequency of the TE11'O' mode in the work band range of the box-shaped energy transporting window. The boardband microwave box-shaped energy transporting window can work in the transmission state of the circular waveguide TE11'O'mode and can work in cutoff state, thereby greatly widening the work bandwidth of the box-shaped window. Meanwhile, the size and the volume of the box-shaped window is greatly reduced, and the generation of high-order mode can effectively suppressed.

Description

Technical field [0001] The invention belongs to the technical field of microwave devices, and relates to a microwave electron tube, in particular to a microwave energy transmission window in the microwave electron tube. Background technique [0002] The microwave energy transmission window is one of the important components of the microwave electron tube. Its function is to ensure that the energy of the microwave signal can be fed into the microwave tube or output from the tube to the microwave system and load; at the same time, it can Play a vacuum seal to ensure that the vacuum state inside the microwave tube will not be destroyed. [0003] The box-shaped energy transmission window is the most commonly used and one of the most important structural forms of the microwave energy transmission window. Its basic form is as follows: figure 1 As shown, it is composed of two rectangular waveguides 1, a circular waveguide 2 and a dielectric window 3. Two sections of rectangular wavegui...

AI Technical Summary

Problems solved by technology

However, the microwave box-shaped energy transmission window designed in this way generally only has the rectangular waveguide in the box-shaped energy transmission window for the working bandwidth of the standing wave coefficient less than or equal to 1.2. 20% to 50% of the operating frequency range of the mode, which cannot meet the needs of microwave transmission in the broadband range; on the other hand, the microwave box-shaped energy transmission window involved in this way is also not conducive to Reduce overall device volume

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