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Terahertz plane transmission array polarization torsion unit

A terahertz and planar technology, applied in the field of millimeter wave/terahertz, can solve the problems that it is difficult to meet the design accuracy requirements of planar structural units, high processing accuracy requirements, small structural size, etc., and achieve simple structure, high gain, and low cost Effect

Pending Publication Date: 2021-06-01
中国船舶集团有限公司第七二四研究所
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AI Technical Summary

Problems solved by technology

In the terahertz frequency band, due to the small structural size of the unit and high processing accuracy requirements, it is difficult to meet the design accuracy requirements of most planar structural units using conventional PCB processing technology
The micromachining process in optics can achieve micron-level machining accuracy and meet the processing requirements of terahertz frequency band devices, but the process is complicated and the cost is high

Method used

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  • Terahertz plane transmission array polarization torsion unit
  • Terahertz plane transmission array polarization torsion unit
  • Terahertz plane transmission array polarization torsion unit

Examples

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Embodiment Construction

[0019] The present invention designs an arrow-shaped polarization torsion unit working in the terahertz frequency band. By adding a polarization grid, the transmission efficiency of the unit is improved; the axisymmetric rotation arrow is used to cover the 360° transmission phase, and the transmission array is realized. required phase compensation. Due to its simple and special symmetrical structure, the accuracy requirements of the unit size are reduced, and a low-cost, high-gain planar terahertz transmission array antenna can be realized by using conventional PCB technology processing technology.

[0020] The present invention will be illustrated below in combination with an embodiment of a 25×25 terahertz planar transmission array.

[0021] Periodic structure design can be used to analyze the matching characteristics of elements in the array by adopting infinite period boundaries. Among them, such as figure 1 As shown, evenly distributed metal grids are printed on the upp...

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Abstract

The invention relates to a terahertz plane transmission array polarization torsion unit. According to the invention, the transmission unit is composed of microstrip line branches in three directions, and the three branches converge at one point to form a shape similar to an arrow; and the upper layer and the lower layer of the transmission unit are provided with mutually orthogonal microstrip grid structures, so polarization torsion efficiency is improved. By adjusting the lengths of the three branches and the overall axial angle, the change of a transmission phase from 0 degree to 360 degrees in a required working frequency band can be obtained, the insertion loss is less than 1 dB, and the terahertz planar metal transmission array polarization torsion unit is suitable for the design of a high-gain terahertz planar metal transmission array based on a PCB process.

Description

technical field [0001] The invention belongs to the technical field of millimeter wave / terahertz. Background technique [0002] With the rapid development of science and technology, wireless communication systems are facing more and more challenges. The wireless frequency band resources planned at this stage have gradually become saturated and cannot meet the requirements of communication technology development. Therefore, people are gradually turning their attention to the undeveloped terahertz frequency band. With the in-depth research on terahertz frequency band communication technology, antenna, as an indispensable part of wireless communication, has higher requirements for its technical indicators, and has attracted more and more attention. [0003] In the millimeter wave / terahertz frequency band, due to the large attenuation of electromagnetic waves in the air, high-gain antennas are usually required. In the microwave frequency band, the traditional microstrip line a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/24H01Q15/02H01Q1/00
CPCH01Q15/242H01Q15/02H01Q1/002
Inventor 史苏阳简玲刘建东王健
Owner 中国船舶集团有限公司第七二四研究所
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