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High-efficiency broadband terahertz wave stealth device

A broadband, terahertz technology, applied in the field of terahertz and radar stealth, to achieve high-efficiency absorption, high absorption, and overcome high material requirements

Inactive Publication Date: 2020-05-08
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • High-efficiency broadband terahertz wave stealth device
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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following embodiments are intended to facilitate the understanding of the present invention, and have no limiting effect on it.

[0024] The high-efficiency broadband terahertz wave cloaking device provided by the present invention includes a terahertz wave generation unit, a high-resistance silicon cone sample, and a terahertz wave test unit, wherein the terahertz wave generation unit is used to generate terahertz waves in any polarization state. The terahertz wave test unit includes a rotating motor, a terahertz time-domain spectrometer (TDS) and a terahertz wave collection arm. The rotating motor is used to control the terahertz time-domain spectrometer to arbitrarily rotate the azimuth angle of the high-resistance silicon cone sample and change Arbitrary angle of the terahertz wave collecting arm. In particular, as fi...

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Abstract

The invention discloses a high-efficiency broadband terahertz wave stealth device. The device comprises a terahertz wave generating unit, a high-resistance silicon pointed cone sample and a terahertzwave testing unit, the terahertz wave generation unit is used for generating terahertz waves in any polarization state; wherein the high-resistance silicon pointed cone sample comprises a plurality ofhigh-resistance silicon micro pointed cones which are arranged in an array; the terahertz wave testing unit comprises a rotating motor, a terahertz time domain spectrometer and a terahertz wave collecting arm, and the rotating motor is used for controlling the terahertz time domain spectrometer so as to arbitrarily rotate the azimuth angle of the high-resistance silicon pointed cone sample and arbitrarily change the angle of the terahertz wave collecting arm. According to the device, broadband and high-efficiency absorption of terahertz waves can be realized; the device can be suitable for terahertz wave incidence at any angle; the device can be suitable for terahertz incident waves of any polarization, has no selectivity on polarization of the incident terahertz waves, and can realize reflection and collection of the terahertz waves at any angle.

Description

technical field [0001] The invention belongs to the field of terahertz and radar stealth, and especially designs a terahertz wave stealth device that is easy to implement, cheap, ultra-wideband, has no polarization dependence, high absorption efficiency, and stable and reliable. Background technique [0002] Stealth technology refers to that in a specific detection environment, it can reduce the detectability of the target by controlling various characteristic signals of the target, and make it difficult to find, track, identify and be attacked. In actual combat, stealth technology can effectively improve survivability and penetration capabilities as well as weapon combat effectiveness. At present, most researches on stealth technology mainly focus on the GHz frequency band. Terahertz waves generally refer to electromagnetic radiation with a radiation frequency between 0.1-10 THz. Terahertz waves not only have the advantages of microwave and infrared waves, but also have a...

Claims

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Application Information

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IPC IPC(8): G02B5/00G01N21/3586
CPCG01N21/3586G02B5/003
Inventor 吴晓君杨培棣洪天舒
Owner BEIHANG UNIV