A new antenna-radome integrated structure and design method

A new type of antenna and radome technology, applied in antennas, resonant antennas, antenna grounding devices, etc., can solve problems affecting antenna radiation characteristics, achieve wide bandwidth, low profile, and obvious RCS reduction effect

Active Publication Date: 2021-09-17
AIR FORCE UNIV PLA
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Problems solved by technology

[0005] The embodiment of the present invention provides a new antenna-radome integrated structure and design method to solve the problems in the prior art, that is, the existing stealth radome or low RCS antenna, the radome and the antenna are designed separately, and then The radome affects the antenna radiation characteristics and other deficiencies

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the invention, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0024] Metamaterials are artificial composite materials composed of subwavelength units and possess extraordinary physical properties that natural materials do not possess. The periodic metal-dielectric stack structure designed based on the idea of ​​metamaterials, that is, the metamaterial absorber, whose dispersion curve consists of an approximately linear weak dispersion area in the low frequency band and a nonlinear strong dispersion area in the high frequency band, can be applied to radar absorbing materials, Design of new antennas, etc.

[0025] The present invention includes a metamaterial absorber 1 (which simultaneously acts as a radiator) and a feeding str...

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Abstract

The invention discloses a novel antenna-radome integrated structure and design method, and relates to the field of low RCS stealth technology. The invention includes a metamaterial absorber and a feed structure. The metamaterial absorber is made of periodic metal-dielectric stacks; the feeding structure is composed of a monopole antenna; the metamaterial absorber is placed on one side of the monopole antenna. The invention is made by printed circuit board technology, has low cost, simple structure, small volume, low profile, and has the advantages of wide bandwidth, high gain, etc., and the out-of-band RCS reduction effect is obvious, and it still has good RCS in a large incident angle range Reduction effect, strong anti-collision and anti-collision ability. By adjusting the size of the structural unit, the antenna's working frequency band, bandwidth, gain and other radiation characteristics, RCS reduction performance and mechanical structure characteristics can be changed, with a greater degree of design freedom.

Description

technical field [0001] The invention relates to the field of low RCS stealth technology, in particular to a novel antenna-radome integrated structure and design method. Background technique [0002] Stealth is an inevitable trend in the development of modern and future weapon platforms. Stealth platform design generally first determines its stealth shape by testing the RCS of a full-scale all-metal platform, and then tries to reduce the RCS of the aperture opened on it. Because the combat mission of the weapon platform depends on the various antennas on it (communication and navigation, electronic support, identification friend or foe, etc.), it is necessary to open different antenna apertures to install these functional devices. Any antenna aperture that is not properly handled will damage the entire machine. Stealth performance brings extremely adverse effects. Therefore, any stealth platform must invest a lot of energy in the stealth design of the antenna aperture, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42H01Q1/48H01Q9/34H01Q15/00H01Q17/00
CPCH01Q1/42H01Q1/48H01Q9/34H01Q15/0086H01Q17/008
Inventor 王甲富韩亚娟屈绍波李勇峰张介秋蒋伟
Owner AIR FORCE UNIV PLA
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