Liquid-crystal microwave modulation device and modulation method thereof

A device and microwave technology, applied in the direction of waveguide devices, electrical components, circuits, etc., can solve the problems of weight reduction, achieve the effect of reducing weight, increasing the number of liquid crystal layers, and simple operation

Active Publication Date: 2017-02-01
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the device using aluminum slats uses a large amount of metal on the one hand, and the weight needs to be further reduced. On the other hand, the aluminum slats are more likely to deform after being made thinner.

Method used

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  • Liquid-crystal microwave modulation device and modulation method thereof
  • Liquid-crystal microwave modulation device and modulation method thereof
  • Liquid-crystal microwave modulation device and modulation method thereof

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Embodiment Construction

[0030] Such as figure 1 , The liquid crystal microwave modulation device of the present invention comprises a plurality of liquid crystal cells (2 to n, n in this embodiment is 10) with the same structure and multiple driving voltage signal sources A.

[0031] Such as figure 2 , the structure of the liquid crystal cell is as follows from top to bottom: the first glass substrate 1, the first ITO electrode 2, the first alignment layer 3, the liquid crystal layer 5, the second alignment layer 6, the second ITO electrode 7 and the second Glass substrate 8; wherein, a spherical resin spacer 4 is placed in the liquid crystal layer 5, and the diameter of the spacer 4 is equal to the thickness of the liquid crystal layer, both of which are 10 μm; the width of the two orientation layers is the same, and the two ends are provided with a sealant 9 The right side of the first glass substrate 1 and the first ITO electrode 2 protrude from the edge of the first alignment layer 3 by 3mm, an...

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Abstract

The invention relates to a liquid-crystal microwave modulation device and a modulation method thereof. The device comprises n liquid crystal boxes of the same structure and n paths of driving voltage signal sources A, n ranges from 2 to 10, each liquid crystal box structurally comprises a first glass substrate, a first ITO electrode, a first orientation layer, a liquid crystal layer, a second orientation layer, a second ITO electrode and a second glass substrate from top to bottom successively, the liquid crystal layer is provided with spherical resin separators, the n liquid crystal boxes of the same structure are stacked from top to bottom successively, the n paths of driving voltage signal sources A form n waveform signal generators independent from one another, and each waveform signal generator is connected with one liquid crystal box correspondingly. According to the invention, the liquid crystal dielectric constant of each layer in the microwave spreading direction can be changed according to multipath driving voltage signals set by users, and interference and diffraction results of emission microwaves can be adjusted.

Description

Technical field: [0001] The present invention designs a liquid crystal microwave modulation device, which can modulate microwave characteristics in a wide range of frequencies. Each liquid crystal layer can be driven by different voltage signals and obtain different microwave phase shift modulation effects. Multilayer liquid crystals can change microwave phase shift , so that the microwave interference or diffraction phenomenon occurs, and the intensity of the main maximum microwave at the center of the interference is enhanced, which can be applied to the fields of actual production and life, smart antennas, and microwave communications. Background technique: [0002] Because the principles of microwave and light wave are similar, when the coherence conditions are met: (1) the wave vector has parallel components; (2) the frequency is the same; (3) the phase difference between the beams remains constant during the observation time, microwave interference will occur . In the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/18
CPCH01P1/18
Inventor 袁瑞叶文江邢红玉
Owner HEBEI UNIV OF TECH
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