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Dual-frequency high-power over-mode waveguide bend

A waveguide elbow, high-power technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problems of small waveguide cross-sectional size and difficult to achieve high-power transmission.

Active Publication Date: 2018-01-19
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of the waveguide cross-section of its structure is small, and the operating frequency is almost close to the cut-off frequency, which makes it difficult to realize high-power transmission in the turning mode of this structure

Method used

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  • Dual-frequency high-power over-mode waveguide bend
  • Dual-frequency high-power over-mode waveguide bend
  • Dual-frequency high-power over-mode waveguide bend

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Embodiment Construction

[0045] In the following, a Ka / Ku dual-frequency high-power overmolded elbow will be taken as an embodiment in conjunction with the accompanying drawings to further describe the present invention in detail, but the scope of protection of the present invention is not limited to this embodiment.

[0046] A dual-frequency overmode waveguide elbow, comprising a 90-degree curved elliptical waveguide, and an input end transition structure and an output end transition structure arranged at both ends thereof; the inner wall of the waveguide elbow has a smooth transition. When the invention works, the electromagnetic wave fed in from the front-stage cylindrical waveguide is transformed into a mode in the elliptical waveguide through the transition structure at the input end, and after turning through the 90-degree curved elliptical waveguide, it transitions to a mode in the rear-stage circular waveguide through the transition structure at the output end.

[0047] The structure of this em...

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Abstract

The invention discloses a dual-frequency high-power over-mode waveguide bend, and belongs to the technical fields of microwave and millimeter wave. The bend comprises a 90-degree bend oval waveguide,and an input end transitional structure and an output end transitional structure arranged at the two ends; and the waveguide bend inner wall is in smooth transition. By virtue of mode selection characteristic, different working modes can be selected in different frequency bands to realize dual-frequency operation; and the dual-frequency high-power over-mode waveguide bend has the advantages of simple and symmetrical structure, convenience in processing and assembling, high broadband efficiency, extremely wide bandwidth particularly in a TE<11> mode, large cross section dimension, high power capacity and the like.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave technology, and in particular relates to a high-power microwave over-mode waveguide elbow. Background technique [0002] In order to improve reliability and accuracy in complex environments, modern advanced radars and electronic jammers often use multi-band working modes. The cyclotron traveling wave tube has the characteristics of high peak power, wide frequency band, and high efficiency, and is the main power source of high-power microwave and millimeter wave devices. Dual-frequency cyclotron TWT is of great significance for the development of advanced high-power microwave systems. In 2012, Chien-Lun Hung and others from Penghu University of Technology in Taiwan designed a Ka / V-band dual-frequency gyrotraveling wave tube, and its working mode is TE 21 Die and TE 41 mold. Theoretical results show that the peak power can be 375kW / 150kW respectively. In 2014, Tang Yong and others f...

Claims

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Application Information

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IPC IPC(8): H01P1/02
Inventor 吴泽威廖校毅王建勋徐勇蒲友雷罗勇
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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