A liquid crystal microwave modulation device and modulation method thereof

A device and microwave technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve problems such as weight reduction, and achieve the effects of total weight reduction, device quality reduction, and simple operation

Active Publication Date: 2021-11-05
HEBEI UNIV OF TECH
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  • 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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  • A liquid crystal microwave modulation device and modulation method thereof
  • A liquid crystal microwave modulation device and modulation method thereof
  • A liquid crystal microwave modulation device and modulation method thereof

Examples

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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 consists of n liquid crystal cells with the same structure and n channels of driving voltage signal sources A, n=2~10; the structure of the liquid crystal cell is as follows from top to bottom: the first glass substrate, the first ITO electrode, the first An alignment layer, a liquid crystal layer, a second alignment layer, a second ITO electrode, and a second glass substrate; wherein, spherical resin spacers are placed in the liquid crystal layer, and the n liquid crystal cells with the same structure are stacked sequentially from top to bottom , the n-channel drive voltage signal source A is composed of n mutually independent waveform signal generators, and each waveform signal generator is correspondingly connected to a liquid crystal cell. In the present invention, the dielectric constant of each layer of liquid crystal in the direction of microwave propagation can be changed according to the multi-channel driving voltage signals set by the user, and the results of outgoing microwave interference and diffraction 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 Patents(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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