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Zero-refractive-index-material-based compact high-directionality planar antenna

A zero-refractive-index, flat-panel antenna technology, applied in resonant antennas, radiating element structural forms, etc., can solve the problems of large volume and weight, and obvious effects, and achieve the effects of small size, convenient processing, and good directionality

Inactive Publication Date: 2016-01-06
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lens antennas based on new artificial electromagnetic materials mostly use horn antennas as feed sources, which have remarkable effects but are relatively large in size and weight

Method used

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  • Zero-refractive-index-material-based compact high-directionality planar antenna

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0027] figure 1 It is a schematic diagram of a compact high-directional panel antenna based on a zero-refractive-index material in an embodiment of the present invention. like figure 1 As shown, the present invention provides a compact high-directional panel antenna, which is composed of a coaxial direct-fed circular patch antenna and a circular flat zero-refractive index lens. figure 2 (a) is the front view of the circular patch antenna, figure 2 (b) is the rear view of the circular patch antenna. The technical scheme adopted by the structure unit of the split resonant ring on the surface of the lens is as follows: the upper surface of the dielectric substrate is printed with copper such as image 3 (a) split resonant ring, no metal back plate on the lower surface of the dielectric substrate, image 3 (b) is a side view of the unit structure. The mag...

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Abstract

The invention discloses a zero-refractive-index-material-based compact high-directionality planar antenna working at the frequency of 6 GHz. The planar antenna comprises a circular microstrip paster antenna and a zero-refractive-index planar lens. The circular microstrip paster antenna employs a coaxial feed way; the planar lens is arranged right in front of the antenna radiation direction and is formed by superposition of four circular thin dielectric layers at an interval of four millimeters; and magnetic resonance units with identical dimensions are distributed on surfaces of all dielectric plates in a periodic mode, wherein the magnetic resonance units have open resonant ring structures. An electromagnetic wave of antenna radiation is emitted in a similar plane wave mode based on the effect of the lens, thereby improving directionality. According to the invention, the planar antenna can be designed and processed simply. A novel artificial electromagnetic material is used for improving directionality of the microstrip paster antenna and the effect is good. Therefore, the zero-refractive-index-material-based compact high-directionality planar antenna has the broad application prospects in the directional antenna and wireless communication fields.

Description

technical field [0001] The invention belongs to the field of lens antennas, and relates to a compact high-directional planar antenna based on zero-refractive-index materials. Background technique [0002] Microstrip antenna is a kind of printed antenna, which is formed by pasting conductive sheet on the dielectric substrate with conductive grounding plate. Because of its thin section, small volume and low production cost, it is widely used in engineering field. However, the electric field distribution of the traditional microstrip antenna is relatively average, and the directivity is poor and the gain is low. Although some traditional antennas can also achieve high directivity and high gain, such as reflectarray antennas, their complex feeding systems increase the cost of antenna design. The new artificial electromagnetic material is composed of resonant units whose size is much smaller than the wavelength. Based on the equivalent medium theory, its electromagnetic paramete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q9/04
Inventor 蒋卫祥韩文清崔铁军马慧锋程强
Owner SOUTHEAST UNIV
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