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A wide-band high-power millimeter-wave over-mode waveguide te 01 Directional Coupler

A directional coupler, over-mode waveguide technology, applied in waveguide-type devices, circuits, connecting devices, etc., can solve the problems of low directivity and low power capacity, and achieve high directivity, large power capacity, and strong mode selection. Effects of Features

Active Publication Date: 2020-11-17
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the shortcomings of the existing high-power millimeter-wave directional coupler such as low power capacity and low directivity, and the requirements of high-power millimeter-wave transmission systems for high mode selection characteristics and anti-standing waves, the present invention proposes an overmode-based TE of quadrupole main waveguide structure 01 Directional Coupler Technical Solution

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  • A wide-band high-power millimeter-wave over-mode waveguide te <sub>01</sub> Directional Coupler
  • A wide-band high-power millimeter-wave over-mode waveguide te <sub>01</sub> Directional Coupler
  • A wide-band high-power millimeter-wave over-mode waveguide te <sub>01</sub> Directional Coupler

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Embodiment Construction

[0036] Combining the above theoretical basis and design points, the Ka-band TE 01 The design of a mode broadband directional coupler is illustrated as an example.

[0037] In this embodiment, considering the power level on the existing high-power transmission link and the conditions of the detection equipment, the indicators of the directional coupler are required as follows: working frequency band: 26GHz-40GHz; coupling degree greater than 35dB; directivity greater than 35dB; the in-band coupling fluctuation is less than ±2dB.

[0038] as attached figure 1 As shown, the overmode waveguide TE of this embodiment 01 The directional coupler includes: an overmoded four-pole main waveguide, an input transition section and an output transition section symmetrically arranged at both ends thereof, and a secondary waveguide that communicates with the convex part of the overmode four-pole main waveguide through a row of coupling holes. The input transition section and the output tran...

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Abstract

The invention discloses a wide-band high-power millimeter-wave over-mode waveguide TE 01 A directional coupler belongs to the technical field of high-power millimeter-wave devices. The directional coupler includes an overmoded quadrupole main waveguide, an input transition section and an output transition section arranged symmetrically at both ends thereof, and a secondary waveguide communicated with the convex part of the overmoded quadrupole main waveguide through a row of coupling holes. The invention adopts a quadrupole waveguide structure based on overmode, which has a large power capacity and can realize stable coupling and high directivity output characteristics in a wide frequency range; the mode interval in the quadrupole waveguide is relatively large, so that the directional coupler has Strong mode selection characteristics can avoid the influence of other parasitic modes; the quadrupole waveguide structure can also achieve high directivity indicators and has anti-standing wave characteristics.

Description

technical field [0001] The invention belongs to the technical field of high-power millimeter-wave devices, and in particular relates to a directional coupler for power detection on a high-power millimeter-wave transmission link. Background technique [0002] Directional coupler is a kind of microwave and millimeter-wave device widely used in microwave system. Its main function is to perform power detection and spectrum measurement on high-power signals. Usually, a directional coupler is composed of a main waveguide and a secondary waveguide, where the main waveguide is used for the transmission of high-power signals, and the secondary waveguide is used to couple out part of the power for detection and then calculate the energy transmitted in the main waveguide. Waveguide structures such as coaxial lines, striplines, microstrip lines, rectangular waveguides, and circular waveguides can all implement directional couplers. [0003] The cyclotron traveling wave tube is currentl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/18
CPCH01P5/18
Inventor 吴泽威宋俊逸王建勋蒲友雷蒋伟陈楷文罗勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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