Ultra-low profile slot array antenna and manufacturing method

A technology of slot antenna and array antenna, which is applied to slot antenna, antenna, antenna array and other directions, can solve the problem of inability to further realize ultra-low profile, so as to improve dynamic performance and stealth performance, improve space utilization rate, and improve corrosion resistance. Effect

Active Publication Date: 2021-07-30
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above method achieves a low profile, it cannot further achieve an ultra-low profile

Method used

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  • Ultra-low profile slot array antenna and manufacturing method
  • Ultra-low profile slot array antenna and manufacturing method
  • Ultra-low profile slot array antenna and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The ultra-low profile slot array antenna of the present invention includes a complex carrier 1 and a diagonal slot antenna unit 2 , and the diagonal slot antenna unit 2 is arranged on the complex carrier 1 .

[0032] The surface of the complex carrier 1 is an arbitrary curved surface, which generally has a two-dimensional curvature. Since the diagonal slot antenna unit 2 needs to sink into the complex carrier 1, the surface of the complex carrier 1 is divided into many curved surface units with similar shapes, and each of the curved surface units is delineated backward. The extension provides space for the slot antenna. The material of the complex carrier 1 is generally set to be metal.

[0033] The diagonal slot antenna unit 2 includes a slot plate 21, a resonant cavity 23, an impedance matching block 22, a resonant cavity back plate 24 and a feed structure 25; the slot plate 21 is a part of the complex carrier 1, Located at the top of the diagonal slot antenna unit ...

Embodiment 2

[0051] Such as figure 1 as shown, figure 1 It is a structural view of the ultra-low profile slot array antenna; in this embodiment, the ultra-low profile slot array antenna of the present invention is composed of 144 diagonal slot antenna units 2, working at 4.5-4.7GHz , the diagonal slot antenna units 2 are arranged in a rectangular grid, and Cosmol is used for grid division. The complex carrier 1 is intercepted from a certain aircraft body, and the curved surface shape of the complex carrier 1 is determined according to the aerodynamic performance. design, which cannot be characterized by parameters, the antenna is modeled according to the above method.

[0052] Such as figure 2 as shown, figure 2 It is a structural view of the diagonal slot antenna unit; the diagonal slot antenna unit 2 includes the slot plate 21, the impedance matching block 22, the resonant cavity 23, and the resonant cavity back The plate 24 and the feed structure 25, the outer dimension of the slo...

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Abstract

The invention discloses an ultra-low profile slot array antenna, which comprises a complex carrier and diagonal slot antenna units, and the diagonal slot antenna units are arranged on the complex carrier. The surface of the complex carrier is a curved surface; each diagonal slot antenna unit comprises a slot plate, a resonant cavity, an impedance matching block, a resonant cavity back plate and a feed structure; the slot plate is located at the uppermost part of the diagonal slot antenna unit, the upper surface of the slot plate is a curved surface matched with the surface of a complex carrier, the slot plate is provided with a slot, and the lower surface of the slot plate is a plane; the resonant cavity is located under the slot plate. The impedance matching block is located in the resonant cavity and below the slot plate, and the impedance matching block is tightly attached to the slot plate; the resonant cavity backboard is located at the bottom of the resonant cavity. According to the invention, the zero profile height of the forward antenna of the carrier is realized, the influence of the array antenna on the aerodynamics and other performances of the carrier is reduced to the minimum, and the dynamic performance and stealth performance of platforms such as aircrafts and the like are greatly improved.

Description

technical field [0001] The invention relates to the technical field of array antennas, in particular to an ultra-low profile slot array antenna and a manufacturing method. Background technique [0002] In recent years, the development of airborne radar, satellite radar and missile-borne radar has become more and more mature. While paying attention to radar performance, the industry has begun to study the influence of array antennas on platforms. On the carrier platform, in addition to the high performance requirements of the antenna itself, there are also restrictions on the size of the antenna. The quality of the antenna should be as light as possible, and the volume should be as small as possible. to the minimum, so low-profile antennas have received more and more attention. The low-profile antenna is based on the traditional antenna theory by adopting new ideas to achieve low profile. These new ideas include new materials, new structures or new layout methods. For a pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/10H01Q1/50H01Q21/00G06F30/20
CPCH01Q13/10H01Q1/50H01Q21/00G06F30/20
Inventor 朱庆超方佳官伟金谋平张小林陶蕾刘颂阳
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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