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A slotted circular waveguide circular polarizer with high power capacity and its processing method

A circular polarizer and circular waveguide technology, applied in the direction of electrical components, antennas, etc., can solve the problems of circular polarizers that can meet high power capacity, miniaturization and broadband performance at the same time, so as to avoid the limitation of available bandwidth, Good axial ratio and broadband performance, the effect of low reflection

Active Publication Date: 2020-07-17
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is currently no circular polarizer that can simultaneously satisfy high power capacity, miniaturization, and broadband performance

Method used

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  • A slotted circular waveguide circular polarizer with high power capacity and its processing method
  • A slotted circular waveguide circular polarizer with high power capacity and its processing method
  • A slotted circular waveguide circular polarizer with high power capacity and its processing method

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Embodiment

[0040] Please refer to Figure 1 ~ Figure 3 , the present embodiment provides a slotted circular waveguide circular polarizer with high power capacity, including a circular waveguide 1, which is an overmolded circular waveguide; two compensation slots 2 are arranged on the inner wall of the circular waveguide 1, and the two compensation slots 2. Arranged symmetrically with respect to the central axis of the circular waveguide 1; the compensation groove 2 is opened along the length direction of the circular waveguide 1, and is a gradual deformation groove. Compared with the sudden deformation groove, the gradual deformation groove structure can avoid Exciting high-order modes improves the axial ratio performance of circular polarizers. The compensation groove 2 includes an arc-shaped groove surface 21, and two flat groove surfaces 22, 23 respectively connected with two arc-shaped sides of the arc-shaped groove surface. The design of the corner structure makes it characterized ...

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Abstract

The invention discloses a slotted circular waveguide circular polarizer with high power capacity and a processing method thereof, and relates to the technical field of microwave polarization conversion. The power capacity is limited, and the machining accuracy is lower. At the same time, the over-molded circular waveguide is used, which has high power capacity performance; the compensation groove adopts a gradual deformation groove structure, which suppresses the generation of high-order modes. At the same time, the over-molded circular waveguide is used to avoid the available bandwidth limitation. , has a good axial ratio and wide-band performance, realizing the wide-band and miniaturized performance of a high-power circular polarizer. In this circular polarizer processing method, wire electric discharge cutting is a non-contact processing method using electric energy processing, which has a small thermal impact on the processed material, and the processing technology, dimensional accuracy and shape tolerance are low; the combination of welding, turning and milling The proposed method enables the circular polarizer to be electrically sealed and hermetically sealed at the same time, meeting the vacuuming requirements of high-power microwave applications.

Description

technical field [0001] The invention relates to the technical field of microwave polarization conversion, in particular to a high power capacity slotted circular waveguide circular polarizer and a processing method thereof. Background technique [0002] In the microwave radiation system and reflective antenna system, it is often necessary to use a circular polarizer to convert the conventional linearly polarized microwave source signal into a circularly polarized signal, and then radiate the circularly polarized signal through the antenna. The structural form of the circular polarizer directly determines the power capacity, size and bandwidth of the radiation system. The current circular polarizers mainly include screw circular polarizers, iris circular polarizers, and metal ladder diaphragm circular polarizers. , a circular polarizer with a dielectric barrier and a circular waveguide circular polarizer with rectangular slots. [0003] The screw circular polarizer and the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/24
CPCH01Q15/244
Inventor 李相强孔歌星张健穹王庆峰
Owner SOUTHWEST JIAOTONG UNIV
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