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Meta-material loaded low cross-coupling antenna array

A technology of metamaterials and antenna arrays, applied in the field of antenna arrays loaded with metamaterials, can solve the problems of antenna pattern deterioration, affecting the efficiency of antenna arrays, affecting the matching of feeding networks, etc., to achieve broadband characteristics, ensure performance, and reduce processing effect of difficulty

Active Publication Date: 2017-11-24
36TH RES INST OF CETC
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  • Abstract
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  • Claims
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Problems solved by technology

Due to the current miniaturization design trend of microstrip antenna arrays, there is unavoidable mutual coupling of energy between the antenna elements, that is, the mutual coupling effect, which greatly affects the efficiency of the antenna array, leads to the deterioration of the antenna pattern, and even affects the feed network. matching, therefore, the effect of mutual coupling cannot be underestimated and must be fully considered when designing a compact and efficient antenna array

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  • Meta-material loaded low cross-coupling antenna array

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Embodiment 1

[0054] A metamaterial-loaded low-coupling antenna array, such as figure 1 As shown, it mainly includes metal patch 1, ground plane 2, metal connecting rod 7 and feeding probe 8. Metal patch 1 is connected to ground plane 2 through metal connecting rod 7 and feeding probe 8 in turn; ground plane 1 A dielectric substrate 3 is fixed on it, and the dielectric substrate 3 is distributed between two adjacent metal patches 1 .

[0055] The metal patch 1 is a rectangular metal plate, but not limited to a rectangle. In this embodiment, there are metal patches 1 with an array number of 4×4=16, such as figure 2 As shown, the long side L=210mm of the metal patch 1, the wide side W=115mm, and the thickness is 2mm; the material of the metal patch 1 is copper, and a U-shaped groove 5 is opened in the middle of the upper surface of the metal patch 1, The opening direction of the U-shaped groove 5 is perpendicular to the long side of the metal patch 1. The U-shaped groove 5 includes two long...

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Abstract

The invention discloses a meta-material loaded low cross-coupling antenna array. The low cross-coupling antenna array comprises a ground plane, metal patches, a metal connecting rod, a feed probe and a medium substrate, wherein the metal patches are connected with the ground plane through the metal connecting rod and the feed probe in order; the air medium is formed between the ground plane and the metal patch; the metal patches are in N*N array distribution, and a U-shaped groove is formed on the metal patch; the medium substrate is located on the ground plane, and the medium substrate is located between two adjacent metal patches; a dual-opening ring unit is etched on the medium substrate, and N means the array number of the metal patch. The low cross-coupling array disclosed by the invention has the advantages that the broadband feature is realized by etching the U-shaped groove on the patch by using the air medium; the inherent band-stop feature of the dual-opening ring structure is used for effectively inhibiting the cross-coupling influence of the antenna array in the stop band; the low cross-coupling antenna array has a compact structure and a cross-coupling inhibition feature, the plane structure is easy for processing and suitable for large batch production.

Description

technical field [0001] The invention relates to the technical field of metamaterial-loaded antenna arrays, in particular to a metamaterial-loaded low-coupling antenna array. Background technique [0002] Since the birth of wireless communication technology for a hundred years, antenna technology has developed rapidly and matured day by day. Whether it is at home or at work, whether it is a vehicle or a satellite or even a space shuttle, antennas can be seen everywhere, and their importance in social life is increasing day by day, and they have been widely used in various fields of daily life. In practical engineering applications, antennas are often required to have characteristics such as high gain, high power, and low side lobes. In many cases, it is often difficult to meet the requirements with only a single microstrip antenna, which requires forming an array of microstrip antennas to meet the specified requirements. For decades, array technology has been widely used in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q21/06
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/523H01Q21/065
Inventor 张明芳何小煜
Owner 36TH RES INST OF CETC
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