A rectangular waveguide te 10 mode to circular waveguide te 21 mode exciter

A technology of rectangular waveguide and mode excitation, which is applied in the direction of waveguide devices, circuits, electrical components, etc., can solve the problems of high difficulty in processing and assembly, complex structure, etc., and achieve simple structure and design method, simple calculation, and high mode conversion efficiency Effect

Active Publication Date: 2020-03-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

[0005] But the TE of the traditional structure mentioned above 10 Mode to Circular Waveguide TE 21 The mode actuator of the mold has the disadvantages of complex structure and high difficulty in processing and assembly

Method used

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  • A rectangular waveguide te <sub>10</sub> mode to circular waveguide te <sub>21</sub> mode exciter
  • A rectangular waveguide te <sub>10</sub> mode to circular waveguide te <sub>21</sub> mode exciter
  • A rectangular waveguide te <sub>10</sub> mode to circular waveguide te <sub>21</sub> mode exciter

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Embodiment Construction

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0030] Such as Figure 1 to Figure 5 , the present invention provides a rectangular waveguide TE 10 Mode to Circular Waveguide TE 21 The mode exciter of mode comprises rectangular waveguide 2 and circular waveguide 4; The working wavelength of this mode exciter is λ, and described rectangular waveguide 2 comprises input port 1 and output port (because not seeing on the figure, so not drawing); The circular waveguide 4 includes a short-circuit surface 3 and an output port 5, and the output port end of the rectangular waveguide 2 is obliquely embedded in the circular waveguide 4, and is 1 / 4 of the working wavelength from the short-circuit surface 3, so that the electromagnetic wave Transmitted from the input port 1 ...

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Abstract

The invention relates to a rectangular waveguide TE 10 Mode to Circular Waveguide TE 21 The mode exciter and design method of the mode, the operating wavelength of the mode exciter is λ, including a rectangular waveguide and a circular waveguide; the rectangular waveguide includes an input port and an output port; the circular waveguide includes a short-circuit surface and an output port, and the output port end of the rectangular waveguide is inclined Embedded in the circular waveguide, and 1 / 4 of the working wavelength away from the short-circuit surface, so that the electromagnetic wave is transmitted from the input port of the rectangular waveguide to the output port of the circular waveguide, so as to realize the mode excitation of the circular waveguide; the narrow side of the rectangular waveguide Perpendicular to the axis of the circular waveguide, the angle between the center line of the rectangular waveguide and the axis of the circular waveguide is θ; the length of the rectangular waveguide is 1-2 times the working wavelength, and the length of the circular waveguide is 5-7 times the working wavelength times. The mode exciter of the present invention has a simple structure, and the working frequency band and mode conversion efficiency can meet the requirements for the TE 21 The demand for the measurement of the propagation characteristics of the mode.

Description

technical field [0001] The invention belongs to the technical field of high-power microwave and millimeter wave, and specifically relates to a circular waveguide TE used in the measurement of high-frequency systems of high-power millimeter-wave cyclotron traveling wave tubes. 21 mode stimulator. Background technique [0002] Rectangular waveguide TE 10 to circular waveguide TE 21 The mode exciter is a widely used microwave measurement (such as the TE in the high frequency system of the cyclotron traveling wave tube). 21 Mode propagation characteristics measurement, etc.), satellite communications, spaceborne radar, microwave power synthesis and other fields of microwave passive devices. Traditional rectangular waveguide TE 10 to circular waveguide TE 21 The mode exciter mainly adopts the structure of coaxial waveguide coupling and porous waveguide coupling. [0003] The structure of the coaxial waveguide coupling is to first connect the TE of the rectangular waveguide ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/163H01P11/00
CPCH01P1/163H01P11/00
Inventor 徐勇王兆栋李洋孙淼彭延会宗帅罗勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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