Rectangular TE10 mode to round waveguide TE21 mode converter based on H-T joint power division network

A rectangular waveguide and mode conversion technology, applied in waveguide-type devices, circuits, electrical components, etc., can solve problems such as unfavorable two-dimensional processing, complex structure of mode converters, and unfavorable application system integration, etc. compact effect

Active Publication Date: 2019-10-25
SHENZHEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The structure of the mode converter is relatively complicated, and the center of the input port and the center of the output port are not in the same axis, which is not conducive to two-dimensional processing and the integration of application systems

Method used

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  • Rectangular TE10 mode to round waveguide TE21 mode converter based on H-T joint power division network
  • Rectangular TE10 mode to round waveguide TE21 mode converter based on H-T joint power division network
  • Rectangular TE10 mode to round waveguide TE21 mode converter based on H-T joint power division network

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with embodiment. It should be noted that if the term indicates the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, it is only for the convenience of describing the present invention and simplifying the Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the invention.

[0022] In addition, the terms "first", "second", "third" and so on are only used for distinguishing descriptions, and should not be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it also needs to be expla...

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Abstract

The invention provides a rectangular TE10 mode to round waveguide TE21 mode converter based on the H-T joint power division network. The mode conversion process is from a rectangular TE10 mode to a rectangular TE20 mode to a circular waveguide TE21 mode. The converter is characterized by comprising an input port, a main branch rectangular waveguide, an H-T joint, three matching steps, two sub branch rectangular waveguides, an over-mode rectangular waveguide, a rectangular-circular waveguide mode converter, an output circular waveguide and an output port. The converter is advantaged in that theproposed TE20-TE21 mode converter has excellent electrical performance and has high mode conversion efficiency (95%) over a wide frequency range. Due to utilizing the H-T power division network, an input port is coaxial with the center of an output port, integration of two-dimensional planar processing and its application systems is facilitated, and the TE20-TE21 mode converter proposed by the invention has excellent electrical performance and structural performance and can be used for cold chamber testing of the high frequency structure of a whirling traveling wave tube.

Description

[technical field] [0001] The invention belongs to the fields of microwave technology and vacuum electronics technology, and in particular relates to a mode converter for testing a high-frequency structure cold chamber of a millimeter wave / terahertz high-order mode cyclotron traveling wave tube. [Background technique] [0002] Rectangular waveguide-to-circular waveguide mode converters are widely used in millimeter wave / terahertz convoluted traveling wave tubes. It can not only be used as the input coupler of the gyro TWT, but also can be used for the cold chamber test of the high frequency structure of the gyro TWT. The cold chamber test of the high-frequency structure is helpful to obtain its dispersion characteristics, transmission loss, electromagnetic characteristics of dielectric materials and return wave oscillation suppression, etc. In order to obtain the above electromagnetic characteristics, a mode converter is a necessary device, because the vector network analyze...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/16
CPCH01P1/16
Inventor 舒国响何文龙张耿涛邓浚哲
Owner SHENZHEN UNIV
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