Unlock instant, AI-driven research and patent intelligence for your innovation.

Compact type magnetron capable of axially outputting circularly polarized TE11 coaxial waveguide mode

A TE11, coaxial waveguide technology, applied in the field of microwave sources, can solve the problem that the microwave source is difficult to directly output the circularly polarized TE11 mode, etc., and achieves the effect of robust performance and reduced sensitivity

Active Publication Date: 2016-08-17
NAT UNIV OF DEFENSE TECH
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to address the urgent need for circularly polarized TE11 mode feed sources in current microwave applications, and the problem that it is difficult for existing microwave sources to directly output circularly polarized TE11 mode, and proposes an axial output circular Compact magnetron with polarized TE11 coaxial waveguide mode

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
  • Compact type magnetron capable of axially outputting circularly polarized TE11 coaxial waveguide mode
  • Compact type magnetron capable of axially outputting circularly polarized TE11 coaxial waveguide mode
  • Compact type magnetron capable of axially outputting circularly polarized TE11 coaxial waveguide mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: The National University of Defense Technology simulated and realized a compact magnetron with an axial output circularly polarized TE11 coaxial waveguide mode with a working mode of 4 / 5π mode according to the above design scheme (the corresponding size is designed as: coaxial input structure: R a1 =9.0mm,R a2 =18.0mm,R a3 =30.0mm,H a1 =18.0mm,H a2 =18.0mm; Resonant cavity structure: N=5, R b1 =9.0mm,R b2 =18.0mm,R b3 =30.0mm,R b4 =9.0mm,R b5 =18.0mm,R b6 =32.0mm,θ b1 =18°,θ b2 =18°,H b1 =72.0mm,H b2 =62.5mm,H b3 =18.0mm; extraction cavity structure: R c1 =34.0mm,R c2 =48.0mm,R c3 =34.0mm,R c4 =48.0mm,θ c1 =18°,θ c2 =54°,θ c3 =67.5°,H c1 =8.0mm,H c2 =32.5mm,H c3 =40.0mm,H c4 =40.0mm; coaxial output structure: R d1 =34.0mm,R d2 =48.0mm,H d1 =70.0mm.). Under the condition of working voltage of 280kV and axial magnetic field of 0.4T, the working frequency of the magnetron is 4.19GHz, the output power is 423.0MW, the power conversion...

Embodiment 2

[0042] Embodiment 2: The National University of Defense Technology simulates and realizes the compact magnetron with the axial output TEM coaxial waveguide mode whose working mode is the π mode according to the above design scheme (the corresponding size is designed as: coaxial input structure: R a1 =11.0mm,R a2 =18.0mm, R a3 =30.0mm,H a1 =18.0mm,H a2 =18.0mm; Resonant cavity structure: N=5, R b1 =11.0mm,R b2 =18.0mm, R b3 =30.0mm,R b4 =11.0mm,R b5 =18.0mm,R b6 =32.0mm,θ b1 =18°,θ b2 =18°,H b1 =72.0mm,H b2 =62.5mm,H b3 =18.0mm; extraction cavity structure: R c1 =34.0mm,R c2 =48.0mm,R c3 =34.0mm,R c4 =48.0mm,θ c1 =18°,θ c2 =54°,θ c3 =67.5°,H c1 =8.0mm,H c2 =32.5mm,H c3 =40.0mm,H c4 =30.0mm; coaxial output structure: R d1 =34.0mm,R d2 =48.0mm,H d1 =70.0mm.). Under the conditions of working voltage of 220kV and axial magnetic field of 0.4T, the working frequency of the magnetron is 4.29GHz, the output power is 476.0MW, the power conversion efficiency is...

Embodiment 3

[0043] Embodiment 3: The National University of Defense Technology simulated and realized a compact magnetron with an axial output circularly polarized TE11 coaxial waveguide mode with a working mode of 6 / 5π mode according to the above design scheme (the corresponding size is designed as: coaxial input structure: R a1 =13.0mm,R a2 =18.0mm,R a3 =30.0mm,H a1 =18.0mm,H a2 =18.0mm; Resonant cavity structure: N=5, R b1 =13.0mm,R b2 =18.0mm, R b3 =30.0mm,R b4 =13.0mm,R b5 =18.0mm,R b6 =32.0mm,θ b1 =18°,θ b2 =18°,H b1 =72.0mm,H b2 =62.5mm,H b3 =18.0mm; extraction cavity structure: R c1 =34.0mm,R c2 =48.0mm,R c3 =34.0mm,R c4 =48.0mm,θ c1 =9°,θ c2 =54°,θ c3 =67.5°,H c1 =8.0mm,H c2 =32.5mm,H c3 =40.0mm,H c4 =34.0mm; coaxial output structure: R d1 =34.0mm,R d2 =48.0mm,H d1 =70.0mm.). Under the condition of working voltage of 160kV and axial magnetic field of 0.4T, the working frequency of the magnetron is 4.27GHz, the output power is 101.0MW, the power convers...

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 technical field of microwave sources in the microwave technology and particularly relates to a compact type magnetron capable of axially outputting the circularly polarized TE11 coaxial waveguide mode directly. The magnetron is based on the whole cavity axial extraction technology, by the aid of design of an interaction region and a non-interaction region of a resonant cavity structure, design of an extraction cavity structure, design of a coaxial output structure and design of an external magnetic field, a purer circularly polarized TE11 coaxial waveguide mode can be output directly, reversing of the rotation direction of the waveguide mode can be realized and controlled more easily, and a purer TEM coaxial waveguide mode can also be output directly.

Description

technical field [0001] The invention belongs to the field of microwave source technology in microwave technology, and specifically relates to a coaxial waveguide mode that can directly output a relatively pure circularly polarized TE11 coaxial waveguide mode, and can realize and control the reversal of the rotation direction of the waveguide mode relatively easily. A compact magnetron that can directly output a relatively pure TEM coaxial waveguide mode. Background technique [0002] Regardless of linear polarization or circular polarization, microwaves with quasi-Gaussian distribution in the far field are widely used in civil and military fields. In order to efficiently obtain such microwaves, the transmitting antenna usually needs to be directly fed into the TE11 mode or TEM mode. Especially the circularly polarized TE11 mode plays an extremely important role in transmitting circularly polarized quasi-Gaussian distributed microwaves from the transmitting antenna. So far,...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01J25/50H01J23/18H01J23/00
CPCH01J23/00H01J23/18H01J25/50
Inventor 史迪夫钱宝良王弘刚
Owner NAT UNIV OF DEFENSE TECH