A Ku-band coaxial-to-rectangular waveguide transition converter

A rectangular waveguide and converter technology, which is applied in the field of no-edge microwave adapters, can solve the problems that the surface current distribution is not easy to solve, the cascade is inconvenient, and the top of the probe is prone to breakdown. Scale processing, the effect of reducing standing wave and return loss

Active Publication Date: 2021-09-17
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, energy can only propagate in one direction in this way. For better impedance matching, the probe head needs to have a gradual change in size. However, when the shape of the probe is irregular, its surface current distribution is not easy to solve.
In addition, because the coaxial connector and the waveguide are at 90 degrees, it is inconvenient to cascade, and when the transmission power is large, the top of the probe is prone to breakdown

Method used

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  • A Ku-band coaxial-to-rectangular waveguide transition converter
  • A Ku-band coaxial-to-rectangular waveguide transition converter
  • A Ku-band coaxial-to-rectangular waveguide transition converter

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Embodiment 1

[0024] figure 2 A schematic diagram of a simulation experiment of a Ku-band coaxial-to-rectangular waveguide transition converter of the present invention is shown, and the air cavity 7 is used for the simulation experiment.

[0025] The air cavity 7 is a transparent box, which is convenient for observing the structure inside the air cavity. The square coaxial line 4, the transition matching block 5 and the fourth-order ridge impedance transformation 6 are sequentially connected and arranged in the air cavity 7, and along the air cavity 7 The central axis of the air cavity 7 is set as the output end 8, and the coaxial probe 3 of the coaxial connector 2 passes through the front end surface 10, enters the air cavity 7 and contacts the square coaxial line 4, coaxial The other end of the connector 2 is used as the input end 1, and the top surface of the air cavity 7 is spaced along the central axis with three circular holes, and three tuning screws 9 are respectively inserted int...

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Abstract

The invention discloses a converter for coaxial to rectangular waveguide transition of a Ku-band terminal transmitter, which adopts a non-standard waveguide port to realize lateral miniaturization, and designs a first conversion module and a second conversion module between the coaxial line and the waveguide. Conversion module to achieve low level of return loss, the first conversion module converts the TEM mode of the coaxial line to the TEM mode of the square coaxial line, and the second conversion module converts the TEM mode of the square coaxial line to TE10 in an orderly manner model. The invention has the advantages of realizing lateral miniaturization, realizing low-level return loss in the process of converting from coaxial mode to waveguide dominant mode in a wide frequency band, low production cost, easy processing and manufacturing, and mass production.

Description

technical field [0001] The invention belongs to the technology of the passive microwave adapter, and in particular relates to a converter for Ku-band coaxial to rectangular waveguide transition. Background technique [0002] In a microwave system, there are usually many different types of transmission lines, such as microstrip lines, coaxial lines, waveguides, etc., which results in the need to connect conversion components for transmission between different transmission lines. Among them, the transition from coaxial to waveguide has been widely used in radar systems, satellite communication interference and anti-interference, and test equipment. As the operating frequency range becomes wider and wider, the bandwidth of the adapter needs higher requirements accordingly. Compared with the rectangular waveguide, the ridge waveguide has a higher frequency application range and is more suitable for various broadband systems. [0003] At present, the widely used waveguide coaxi...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01P5/103
CPCH01P5/103
Inventor孙琳琳李萍蒋士鹏
OwnerNANJING UNIV OF SCI & TECH