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Non-diffraction phase plate in microwave frequency band and manufacturing method thereof

A technology of microwave frequency band and production method, which is applied in the direction of electromagnetic transmitters, electromagnetic wave transmission systems, electrical components, etc., can solve the problems of limited electromagnetic wave energy focusing and projecting distance, low electromagnetic wave transmission efficiency, etc., and achieve the effect of improving power density

Inactive Publication Date: 2019-03-01
CHINA SHIP DEV & DESIGN CENT
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a non-diffraction phase plate in the microwave frequency band and its manufacturing method. Under the background of the design principle of the optical axicon, through the structural design, it overcomes the electromagnetic wave energy of the traditional array focusing antenna and the electromagnetic super lens. The defects of limited focusing distance and low electromagnetic wave transmission efficiency

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  • Non-diffraction phase plate in microwave frequency band and manufacturing method thereof
  • Non-diffraction phase plate in microwave frequency band and manufacturing method thereof
  • Non-diffraction phase plate in microwave frequency band and manufacturing method thereof

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[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] Using an axicon to generate a Bessel beam, such as figure 1 As shown, a parallel beam of radius R is incident on the axicon. Due to the refraction of the beam, a Bessel beam is formed in the area where the upper and lower halves of the beam overlap. Zmax is the maximum collimation distance and the non-diffraction transmission distance. The refractive index of the axicon is n, the base angle of the axicon is γ, the angle between the incident light and the normal of the cone surface is i, the angle between the outgoing light and the normal of the conical surface is j, and the angle between the...

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Abstract

The invention designs a non-diffraction phase plate in a microwave frequency band and a manufacturing method thereof. The non-diffraction phase plate is formed by an anti-reflection layer and a continuous second-order axicon structure, and defects of limited focusing transmission distance of electromagnetic wave energy and low transmission efficiency of electromagnetic waves of conventional arrayfocusing antennas and electromagnetic super lenses are overcome through the design of the structure. Non-diffraction phase of the microwave frequency band is realized, the conventional axicon structure is designed as a flat plate structure in an optimized manner, the loss of medium materials is reduced, the transmission efficiency of the electromagnetic waves is improved, and the focusing transmission distance of the electromagnetic energy is expanded.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic wave transmission and phase design in the microwave frequency band, and in particular relates to a non-diffraction phase plate in the microwave frequency band and a manufacturing method thereof. Background technique [0002] As a means of energy transmission, electromagnetic waves can deliver electromagnetic energy to a target area within a certain distance. This energy transmission method has important applications in the fields of life, military, energy, and medical care. Due to the volatility of electromagnetic waves, microwave transmission in space will produce diffraction and diffusion. With the increase of transmission distance, microwave dispersion loss is large, resulting in low efficiency of microwave energy transmission and utilization. Focused transmission of electromagnetic waves is the application target in the field of electromagnetic wave and electromagnetic energy manipulat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/11H04B10/50
CPCH04B10/11H04B10/501
Inventor 陈俊峰肖龙陈亮郭龙颖张崎谭辉
Owner CHINA SHIP DEV & DESIGN CENT
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