Reflective broadband terahertz polarization converter

A polarization conversion and terahertz technology, applied in the direction of electrical components, antennas, etc., can solve the problems of small birefringence index and limited application, etc., and achieve the effect of high working bandwidth and narrow bandwidth

Inactive Publication Date: 2018-08-10
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

However, in the terahertz band, the birefringence index of naturally occurring materials is very small, and the birefringence index of natural materials has almost no dispersion, which leads to the use of natural materials to control the polarization state of electromagnetic waves only at a single frequency point, greatly limits its application

Method used

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  • Reflective broadband terahertz polarization converter
  • Reflective broadband terahertz polarization converter
  • Reflective broadband terahertz polarization converter

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0024] The technical scheme that the present invention solves the problems of the technologies described above is:

[0025] A reflective broadband terahertz polarization converter provided by the present invention has a structure such as figure 1 and figure 2 As shown, the unit structure is periodically arranged, and the unit structure is a typical three-layer structure, which is a continuous metal layer 3, an intermediate dielectric layer 2 and a metal pattern layer 1 from bottom to top; the metal pattern layer consists of It is composed of double opening resonant ring and hollow disc.

[0026] The metal pattern layer has a thickness of 0.2 μm and an electrical conductivity of 4.561×10 7 S / m gold lay...

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Abstract

The invention discloses a reflective broadband terahertz polarization converter, which is formed by unit structures arranged periodically. The unit structure is a typical three-layer structure, whichis a continuous metal layer, an intermediate layer and a metal pattern layer sequentially from bottom to top, wherein the metal pattern layer is formed by a double-opening resonant ring and a holloweddisk. The reflective broadband terahertz polarization converter has strong practicability, x polarization waves can be efficiently converted into y polarization waves in a terahertz band broadband range, and the polarization converter is simple in structure and convenient in processing. The reflective broadband terahertz polarization converter is applicable to fields such as communication, imaging and new antenna design.

Description

technical field [0001] The invention belongs to the technology of terahertz polarization converters, in particular to a reflective broadband terahertz polarization converter. Background technique [0002] Terahertz waves are located in the transition position from microwave to infrared in the electromagnetic spectrum, and the frequency range covers 0.1THz to 10THz. Compared with electromagnetic waves in other bands, terahertz waves have very important characteristics, showing great application potential. For example, terahertz can penetrate many substances without damage, and the photon energy of terahertz waves is at the millielectronvolt level. Compared with X-rays, it will not cause biologically harmful ionization reactions, and can play a role in fields such as safety detection: many substances The vibration and rotation frequency of macromolecules and the background noise of the universe are all in the terahertz band. The development and application of terahertz techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/24
CPCH01Q15/242
Inventor 潘武沈大俊闫彦君
Owner CHONGQING UNIV OF POSTS & TELECOMM
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