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Reflection beam deviation-based terahertz polarization separator

A splitter and beam technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problems that polarized devices are difficult to meet, limit the electronic control design of reflective array antennas, etc. control effect

Inactive Publication Date: 2018-03-13
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

However, the traditional reflectarray has limitations in processing technology and bias network structure in the high-frequency band, especially in the terahertz band, which limits the electronic control design of the reflectarray antenna.
[0006] With the development of modern communication system technology, it is difficult to meet the requirements of simple polarization devices.

Method used

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  • Reflection beam deviation-based terahertz polarization separator
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  • Reflection beam deviation-based terahertz polarization separator

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Embodiment Construction

[0023] The present invention designs an artificial microstructure reflective array with a frequency response to terahertz electromagnetic waves at a specific frequency point, and uses two-dimensional adjustment of the phase to realize the reflection of TE waves (linear polarization of the electric field along the y direction) to the y-axis direction, The TM wave (linear polarization of the electric field along the x-direction) is reflected in the x-axis direction, and the periodic structure is separated in the far field by simultaneously controlling the phase of the TE and TM units. Its surface unit structure is metal aluminum, thickness t=1μm; dielectric substrate material is quartz, width l=340μm, height h=100μm; bottom plate is metal aluminum, and its specific unit expression is as follows figure 1 As shown, the specific dimensions are as follows:

[0024] For the numbering method of each patch unit, see Figure 8 , the number in the "Unit" column is the unit number.

[0...

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Abstract

The invention provides a reflection beam deviation-based terahertz polarization separator, and relates to a terahertz reflection polarization isolation device. The reflection beam deviation-based terahertz polarization separator comprises a metal bottom plate, a dielectric substrate and metal patch arrays in an amount of four by four, wherein the dielectric substrate is arranged on the metal bottom plate, the metal patch arrays are arranged on the dielectric substrate, the reflection beam deviation-based terahertz polarization separator is characterized in that each metal patch comprises an orthogonal cross part and four rectangular short metal strips, the four rectangular short metal strips are respectively arranged at four end points of the cross shape in an orthogonal mode, the metal patches are in vertical symmetry and horizontal symmetry, middle points of the four short metal strips are arranged at two symmetric shafts of the orthogonal cross shape, the TM wave phase difference between adjacent metal substrates is 90 degrees along a traverse direction by taking a metal patch arranged at a top angle of the array as a base point, and the TE wave phase difference between adjacentmetal substrates is 90 degrees along a longitudinal direction. By the reflection beam deviation-based terahertz polarization separator, modulation of a TE wave and a TM wave in different directions is achieved.

Description

technical field [0001] The invention relates to a terahertz reflective polarization isolation device. Background technique [0002] Terahertz (THz) waves are a new type of electromagnetic spectrum to be developed, usually referring to electromagnetic waves with frequencies ranging from 0.1 THz to 10 THz. This frequency range lies between millimeter waves, infrared, and light, and has many unique electromagnetic properties. Therefore, it has extremely important potential application value in the fields of physics, chemistry, electronic information, imaging, life science, material science, astronomy, atmospheric and environmental monitoring, national security and anti-terrorism, communication and radar. [0003] Due to the advancement of technology, the operating frequency of radar is now getting higher and higher, and it has become an important research topic to break through the limitations of centimeter-band receiver-transmitter isolation devices or systems applied in high...

Claims

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Application Information

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IPC IPC(8): H01Q15/24H01P5/16
CPCH01P5/16H01Q15/24
Inventor 史宗君罗智曾泓鑫杨梓强兰峰
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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