Relativistic backward wave oscillator of direct circular polarization TE11 mode

A relativistic return wave tube, TE11 technology, applied in the field of masers, can solve the problems of limited conversion efficiency, energy loss, increased system weight and length, etc.

Active Publication Date: 2016-03-23
NORTHWEST INST OF NUCLEAR TECH
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The introduction of mode converters and circular polarizers increases the weight and length of the system,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Relativistic backward wave oscillator of direct circular polarization TE11 mode
  • Relativistic backward wave oscillator of direct circular polarization TE11 mode
  • Relativistic backward wave oscillator of direct circular polarization TE11 mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to better understand the present invention, the circularly polarized TE is directly produced by the present invention in conjunction with the accompanying drawings and examples below. 11 The mode relativistic return wave tube is described in detail.

[0023] figure 2 , 3 A schematic diagram of an embodiment of the present invention is given. figure 2 The electron beam output direction along the central axis of the relativistic return wave tube is the z axis, the vertical z axis is the y axis, and the vertical y and z axes point to the paper surface is the x axis. figure 2 is the structural representation on the yz section of this embodiment, image 3 It is a structural schematic diagram on the xz section of this embodiment. The relativistic return wave tube provided by the present invention includes an annular cathode 1 , an angularly partitioned double pre-modulation cavity 2 , an angularly partitioned slow wave structure 3 , an output waveguide 4 and a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of masers and relates to a relativistic backward wave oscillator of a direct circular polarization TE11 mode. The relativistic backward wave oscillator comprises an annular cathode, angular partition double-pre-modulation chambers, angular partition slow wave structures, an output waveguide and a magnetic field coil. The annular cathode is at the most front end of the structure and emits an annular relativistic electron beam under the effect of high voltage pulse. The angular partition double-pre-modulation chambers, the angular partition slow wave structures, and the output waveguide are orderly arranged behind the annular cathode. The magnetic field coil is at the periphery of the annular cathode, the angular partition double-pre-modulation chambers, and the angular partition slow wave structures. The angular partition double-pre-modulation chambers and the slow wave structures are employed by the invention, two linearly polarized TE11 modes with the same frequency, similar amplitude and orthogonal polarization can be generated in two groups of structure. Through the offset of d/4 of two groups of the double-pre-modulation chambers and the slow wave structures in an axial position, thus a 90-degree phase difference is introduced between the linearly polarized TE11 modes with orthogonal polarization, and the circular polarization TE11 mode is obtained in an output waveguide.

Description

technical field [0001] The invention belongs to the field of microwave masers, in particular to a relativistic return wave tube. Background technique [0002] The relativistic backward wave oscillator (hereinafter referred to as RBWO) has the characteristics of high power, high efficiency, and suitable for repetition frequency operation, and is one of the most important high-power microwave sources. Currently commonly used RBWO such as figure 1 As shown (patent number: ZL200710082042.4, high power relativistic return wave tube), it includes a ring cathode 1, a resonant reflector 6, a slow wave structure 7, an output waveguide 4 and a magnetic field coil 5. The ring cathode 1 is located at the front of the device; the resonant reflector 6, the slow wave structure 7 and the output waveguide 4 are separated from the ring cathode 1 by a certain distance, and placed behind it in turn; the magnetic field coil 5 is located at the ring cathode 1, the resonant reflector 6 and the sl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01J25/34H01J23/24
CPCH01J23/24H01J25/34H01J2223/24H01J2225/34
Inventor 肖仁珍张治强梁铁柱邓昱群李佳伟张庆元
Owner NORTHWEST INST OF NUCLEAR TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap