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High-gain high-efficiency flat plate antenna loaded with left-handed material

A left-handed material, flat-panel antenna technology, used in antennas, slot antennas, resonant antennas, etc., can solve the problems of high gain, complex design and debugging, small size, etc., and achieve the effect of high gain, compact structure, and large bandwidth

Inactive Publication Date: 2013-04-17
SHANDONG GUOWEI SATELLITE COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The panel antenna described in this patent is smaller in size and higher in gain than ordinary antennas, but the design and debugging are complicated

Method used

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  • High-gain high-efficiency flat plate antenna loaded with left-handed material
  • High-gain high-efficiency flat plate antenna loaded with left-handed material
  • High-gain high-efficiency flat plate antenna loaded with left-handed material

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A high-gain and high-efficiency planar antenna loaded with left-handed materials, including a feed layer 5, a coupling layer 4, a resonant cavity layer 3, and a radiation layer 2 arranged in sequence according to the propagation direction of electromagnetic waves; the left-handed material is arranged on the radiation layer Dielectric board 1.

[0036]The dielectric plate 1 loaded with left-handed materials includes a dielectric plate 6 with a dielectric constant of 2.68, and a metal patch 15 in the shape of a seven-segment number "5" is arranged on the dielectric plate 6; the adjacent metal patch 15 The longitudinal spacing is SL=7.65mm, the lateral spacing of the adjacent metal patches 15 is SW=2.75mm; the length of the metal patches 15 is ML=4.7mm, and the width of the metal patches 15 is MW=2mm; The thickness of the metal patch 15 is d=1mm; the metal patch 15 is arranged on the dielectric board 6 in an arrangement of 10 rows×32 columns. The metal patch 15 is a coppe...

Embodiment 2

[0038] A high-gain and high-efficiency planar antenna loaded with left-handed materials as described in Example 1, the difference is that

[0039] The radiation layer 2 includes a plurality of radiation units, and each radiation unit includes a grid radiator 7, and each grid radiator 7 includes four rectangular grid side walls surrounded by side walls and a grid bottom, Radiation slots 8 are arranged on the grid bottom.

[0040] The inner length L=20mm, inner width W=20mm, inner height H=8mm, and grid bottom thickness h=1mm of each grid radiator 7; the length FL=12mm and width FW= 2mm.

[0041] Each radiation unit includes 16 grid radiators 7, and the 16 grid radiators 7 are arranged on the radiation layer 2 in an arrangement of 4 rows×4 columns.

[0042] The resonant cavity layer 3 includes a plurality of resonant cavity units, and each resonant cavity unit includes 4 resonant cavities 9, and the 4 resonant cavities 9 are arranged on the resonant cavity layer in an arrangem...

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Abstract

The invention relates to a high-gain high-efficiency flat plate antenna loaded with a left-handed material. The high-gain high-efficiency flat plate antenna comprises a feeding layer, a coupling layer, a resonant cavity layer and a radiating layer which are arranged along an electromagnetic wave propagation direction in sequence, wherein a dielectric plate loaded with the left-handed material is arranged on the radiating layer. According to the flat plate antenna, the dielectric plate loaded with the left-handed material is arranged on the surface of the radiating layer, and electromagnetic wave enters a coupling hole from a feeding port through a T-shaped waveguide, enters a resonant cavity after being subjected to a step effect in the coupling hole, enters a grid radiator, to which a layer of dielectric plate loaded with the left-handed material is attached, in the resonant cavity through a radiating slot and finally is radiated out through the dielectric plate. The entire flat plate antenna has the advantages of compact structure, high gain and capability of meeting technical requirements of high efficiency, large band width and small size of the conventional satellite flat plate antenna, and the efficiency of the flat plate antenna reaches over 85 percent.

Description

technical field [0001] The invention relates to a high-gain and high-efficiency panel antenna loaded with left-handed materials, belonging to the technical field of satellite panel antennas. Background technique [0002] Panel antennas have the advantages of light weight, small size, less space, small wind resistance, and high efficiency. Compared with other forms of antennas such as parabolic antennas, panel antennas have higher efficiency, higher gain, and smaller size. However, the current panel antenna The efficiency is between 75% and 80%, and it is difficult to break through the efficiency of 80% from the technical level to achieve higher efficiency. [0003] The existing planar antennas have various structures, but most of them only meet the technical conditions of short-distance communication: [0004] For example, Chinese patent application CN101752655A discloses a flat panel antenna, which includes a substrate, multiple antenna bodies and a metal layer. The multi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q9/04H01Q13/10H01Q15/00
Inventor 唐文成薛丽丽郭希涛刘冰
Owner SHANDONG GUOWEI SATELLITE COMM
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