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Electromagnetic super-surface polarization converter based on solid state plasma

A plasma and electromagnetic super technology, applied in the field of ion practical technology and microwave devices, can solve problems such as unfavorable integration and integrated chip manufacturing, complex control circuits, etc., and achieve the effects of flexible design, various control methods, and wide frequency band coverage.

Active Publication Date: 2018-11-02
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
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Problems solved by technology

But for most cases, once the metasurface structure is fixed, it is difficult to change the working range. In order to obtain a tunable wide circular polarization working range, a large number of lumped components have to be introduced. The control circuit is complicated and is not conducive to integration and chips. Integrated manufacturing

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  • Electromagnetic super-surface polarization converter based on solid state plasma
  • Electromagnetic super-surface polarization converter based on solid state plasma
  • Electromagnetic super-surface polarization converter based on solid state plasma

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Embodiment Construction

[0035]The technical solution of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments:

[0036] The present invention is based on the electromagnetic metasurface polarization converter of solid-state plasma. The polarization converter is formed by periodic arrangement of unit structures, and has the following three states: state one, its structural unit includes the bottom metal reflector 12, the first layer of dielectric Substrate 10, second dielectric substrate 11, top metal patch 1, such as figure 1 As shown; the structural unit of the second state includes the bottom metal reflector 12, the first layer of dielectric substrate 10, the second layer of dielectric substrate 11, the top layer of metal patch 1 and the excited solid-state plasmon resonance unit 2, 3, 4, 5 ,Such as figure 2 Shown; State three its structural unit comprises bottom metal reflection plate 12, first layer dielectric substrate 10,...

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Abstract

The invention discloses an electromagnetic super-surface polarization converter based on solid state plasma. The electromagnetic super-surface polarization converter comprises a second dielectric substrate, a first dielectric substrate and an underlying metal reflector plate which are laminated from top to bottom in sequence; and a resonance unit, capable of realizing linear-circular polarizationconversion in an ultra wide band range, consisting of a metal patch, a solid state plasma resonance unit and a vanadium dioxide resonance unit is laminated above the second dielectric substrate. The excited state of the resonance unit composed of the solid state plasma is controlled through an external logic array program, and the phase-change state of a vanadium dioxide area is controlled throughtemperature, so that the linear-circular polarization conversion of the polarization converter in different frequency domain ranges is realized, and the frequency band dynamic control range of circular polarization can stretch over four wave bands such as X wave band, Ku wave band, K wave band and Ka wave band through reasonable parameter optimization.

Description

technical field [0001] The invention relates to the field of solid-state plasma practical technology and microwave device technology, in particular to a controllable ultra-wideband polarization converter based on solid-state plasma and vanadium dioxide. Background technique [0002] Today, when online polarized antennas are increasingly difficult to meet the strict requirements, circularly polarized antennas and polarization converters are used in satellite communication systems, wireless remote sensing systems, WLAN (wireless local area network), WPAN (wireless personal area System) and a series of systems have developed rapidly. Due to the many advantages of circularly polarized waves, such as reducing the energy loss caused by inconsistent polarization, reducing the interference of rainy and foggy weather and buildings, etc., the linear-circular polarization conversion technology has been widely used in many military and civilian fields. Therefore, it is very important t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/24
CPCH01Q15/244
Inventor 章海锋曾立刘国标黄通
Owner NANJING UNIV OF POSTS & TELECOMM
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