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Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof

An all-metal, terahertz technology, applied in antennas, antenna parts, electrical components, etc., can solve the problems of high dielectric loss, increase the complexity of designing hyperbolic metamaterials, and cannot support the design of all-metal hyperbolic metamaterials, etc. Achieving the effect of avoiding influence and effective transmission

Active Publication Date: 2021-03-23
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This feature increases the complexity of designing hyperbolic metamaterials to a certain extent.
The mainstream methods introduced above have their own advantages in the design of hyperbolic metamaterials. However, due to the specific requirements for the constituent materials, these methods cannot support the design of all-metal hyperbolic metamaterials.
This problem also means that the high loss caused by the medium is unavoidable
At the same time, medium filling also limits the application of hyperbolic metamaterials in some specific occasions that require air medium

Method used

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  • Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof
  • Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof
  • Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof

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Embodiment Construction

[0043] The present invention will be further elaborated below through specific embodiments in conjunction with the accompanying drawings.

[0044] Such as figure 1 As shown, the microwave and terahertz wave all-metal hyperbolic metamaterial antenna of this embodiment includes: a metal meander line and a metal support column; wherein, the plane where the metal meander line is located is the yz plane, and the normal of the plane is located in the x direction, The shape of each metal meander line is a square waveform, which is composed of multiple identical square waveform units with a duty ratio of 1 arranged periodically along the z direction, and the length of each unit in the z direction, that is, the unit period is p z , the unit period is m z , the thickness is t, the width is w, and the height in the y direction is b; multiple metal meander lines that are identical and located on the same plane are arranged periodically along the y direction to form a metal two-dimensiona...

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Abstract

The invention discloses a microwave and terahertz wave all-metal hyperbolic metamaterial antenna and an implementation method thereof. The all-metal hyperbolic metamaterial antenna comprises metal meander lines and supporting columns, wherein each metal meander line is in a square waveform shape, the multiple metal meander lines are periodically arranged in the y direction to form a metal two-dimensional meander line plane, and the multiple layers of metal two-dimensional meander line planes are periodically arranged in the x direction to form the all-metal hyperbolic metamaterial antenna. According to the invention, the loss of the whole structure can be effectively reduced, the transmission rate on incident traveling waves is also extremely high at the same time, and the TM polarized incident wave transmission rate exceeds 80% when the incident angle is less than 50 degrees; meanwhile, due to lack of a solid filling medium, the antenna can also work in some special scenes, such as high-power occasions and threshold-free Cherenkov radiation requiring free movement of electrons; and the antenna is not limited to a microwave band, and a low-loss terahertz all-metal hyperbolic metamaterial antenna can also be designed by applying the method in a terahertz band with extremely high dielectric loss.

Description

technical field [0001] The invention relates to microwave frequency band metamaterial technology, in particular to a microwave and terahertz wave all-metal hyperbolic metamaterial antenna and a realization method thereof. Background technique [0002] Hyperbolic metamaterials are artificial anisotropic materials whose equifrequency dispersion lines are hyperbolic. This singular property arises from the negative components in the diagonal permittivity or permeability tensors. In the present invention, only electric hyperbolic metamaterials with wider application scenarios are discussed, that is, the magnetic permeability tensor degenerates to a constant. Different from naturally occurring anisotropic materials, due to the openness of the hyperbola, hyperbolic metamaterials can couple and transmit surface waves with arbitrarily large wave vectors that cannot be supported by other materials. Imaging, threshold-free Cerenkov radiation, surface wave antennas and manipulation of...

Claims

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Application Information

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IPC IPC(8): H01Q1/36
CPCH01Q1/364
Inventor 殷立征韩丰远王艺东赵瑾杜朝海刘濮鲲
Owner PEKING UNIV
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