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suppress te 11 Circular waveguide suppressor for mode microwave and its design method

A technology of TE11 and circular waveguide, which is applied in the field of circular waveguide suppressors to achieve efficient transmission

Inactive Publication Date: 2019-12-06
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The working principle of the waveguide slot suppressor is to open a longitudinal slot parallel to the waveguide axis in the center of the wide side of the rectangular waveguide, which will not affect the TE 10 mode of high-frequency current flow, but these gaps will cut off the TE 01 mode of high frequency current, thus preventing the te 01 mode transmission

Method used

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  • suppress te <sub>11</sub> Circular waveguide suppressor for mode microwave and its design method
  • suppress te <sub>11</sub> Circular waveguide suppressor for mode microwave and its design method
  • suppress te <sub>11</sub> Circular waveguide suppressor for mode microwave and its design method

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Embodiment 1

[0053] This embodiment is a wave suppressor suitable for Ku-band frequency 15GHz, which can effectively suppress TE 11 and other modes, while efficiently transmitting TM 01 . Among them, the diameter of the main waveguide is 30mm, and other parameters are as follows:

[0054]

[0055]

[0056] see figure 2 , using the wave suppressor provided in this embodiment, can efficiently transmit TM 01 mode, while the TE 11 mode total reflection. image 3 given at a certain power TE 11 Mode microwave passes through the situation of the mode suppressor of this embodiment, it can be seen that the mode suppressor will TE 11 Mode microwave total reflection. Figure 4 gives TM 01 When the mode microwave passes through the mode suppressor, it can be seen that the TM 01 The mode transmission efficiency is very high, and there is no reflection through the mode suppressor.

Embodiment 2

[0058] This embodiment is a wave suppressor suitable for X-band 9.3GHz, which can effectively suppress TE 11 and other modes, while efficiently transmitting TM 01 . Among them, the diameter of the main waveguide is 50mm, and other parameters are as follows.

[0059] size L1 L2 L3 L4 L5 L6 L7 L8 L9 φ φ1 φ2 φ3 φ4 φ5 Length / mm 16.3 17.7 16.5 15.8 16.5 17.1 16.5 18.5 16.5 50 64.2 69.6 78 68.4 77

Embodiment 3

[0061] This embodiment is a wave suppressor suitable for Ka band 28.2GHz, which can effectively suppress TE 11 and other modes, while efficiently transmitting TM 01 . Among them, the diameter of the main waveguide is 14.8mm, and other parameters are as follows.

[0062] size L1 L2 L3 L4 L5 L6 L7 L8 L9 φ φ1 φ2 φ3 φ4 φ5 Length / mm 5.3 5.8 5.4 5.2 5.4 5.6 5.4 6 5.4 14.8 20.9 22.7 25.5 22.3 25.1

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Abstract

The invention belongs to the technical field of microwave engineering and specifically relates to a circular waveguide wave-mode suppressor capable of suppressing a TE11-mode microwave and a design method thereof. The circular waveguide wave-mode suppressor comprises a circular waveguide. The circular waveguide is provided with a first cavity, a second cavity, a third cavity, a fourth cavity and afifth cavity in sequence in the microwave transmission direction. A first transition waveguide is arranged between the first cavity and the second cavity; a second transition waveguide is arranged between the second cavity and the third cavity; a third transition waveguide is arranged between the third cavity and the fourth cavity; and a fourth transition waveguide is arranged between the fourthcavity and the fifth cavity. The circular waveguide wave-mode suppressor can effectively filter the TE11-mode microwave, so that a TM01-mode microwave is allowed to be transmitted more efficiently; and verification is realized based on a numerical simulation program, such as CST-MWS and HFSS software, and simulation results show the suppressor can be used in various wave bands.

Description

technical field [0001] The invention belongs to the technical field of microwave engineering, and in particular relates to a method for suppressing TE 11 Circular waveguide suppressor for mode microwave and its design method. Background technique [0002] In the research work of microwave engineering technology, the function of the wave suppressor is to suppress or filter out the spurious modes or other undesired modes that may exist in the microwave transmission system. These modes can be generated by the microwave source or by the mode transformer or waveguide inhomogeneities. [0003] In microwave engineering, there are the following types of wave suppressors: coaxial conductive ring filter, radial conductive diaphragm filter, waveguide slot filter, attenuation coating filter. Their functions are to filter out the modes that affect the normal operation of the system during the transmission process of the waveguide. [0004] Coaxial Conductive Ring Suppressor. Set a se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/212
CPCH01P1/212
Inventor 张立刚宋玮史彦超李佳伟李小泽朱晓欣谭维兵沈志远胡祥刚
Owner NORTHWEST INST OF NUCLEAR TECH
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