A Low RCS Polarization Rotating Broadband/Ultra Wideband Transmissive Array Antenna

A technology of polarization rotation and array antenna, which is applied in the direction of antenna, antenna array, waveguide horn, etc., and can solve problems such as unfavorable applications

Active Publication Date: 2020-10-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the application of double-layer orthogonally polarized grid structure of this type of broadband / ultra-broadband transmission unit, its cross-polarization radar scattering cross-sectional area is basically equivalent to that of a metal floor with the same area, which is very unfavorable for its application in real scenes. application

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  • A Low RCS Polarization Rotating Broadband/Ultra Wideband Transmissive Array Antenna
  • A Low RCS Polarization Rotating Broadband/Ultra Wideband Transmissive Array Antenna
  • A Low RCS Polarization Rotating Broadband/Ultra Wideband Transmissive Array Antenna

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Embodiment Construction

[0021] The technical solutions of the present invention will be described in detail below in conjunction with the drawings and embodiments, but the protection scope of the present invention is not limited to the embodiments.

[0022] figure 1 In the embodiment of the present invention, it is a transmission and reflection integrated dual-polarization independent control unit, which loads a broadband / ultra-broadband reflection unit on the basis of a broadband / ultra-broadband polarization rotation transmission unit, and realizes it by optimizing its arrangement Reduction of RCS. In this example t 1 , t 2 , t 3 The thicknesses are 0.5mm, 2.5mm and 3mm respectively, and the cell size is 9.6mm×9.6mm; the parameter x in 101-1 1 =0.2L 1 ,y 1 =0.1L 1 ,z 1 =0.05L 1 ,w 1 =w 2 =0.3, g 1 =0.6, g i1 =0.2,L v1 =b 1* [L 1 -2 * (w 1 +w i1 +g 1 +g i1 )]; 101-3 parameter R 1 =3.3,R 2 =4.7,w 1 =1.4, L=9.6; the width and gap of the first and second metal polarization grids ...

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Abstract

The invention discloses a low-RCS polarization rotating broadband ultra-broadband transmission array antenna, which belongs to the fields of wireless communication technology and radar technology. It includes a horn feed antenna and a transmission array antenna composed of transmission and reflection integrated polarization independent control broadband / ultra-wideband units. By optimizing the arrangement of the transmissive elements, the broadband / ultra-broadband radiation characteristics of the transmissive array antenna can be realized; by optimizing the arrangement of the reflective elements, the in-band cross-polarized RCS can be significantly reduced. Compared with the traditional polarization rotating wideband / ultra-wideband transmission array antenna, the present invention can reduce the display of RCS on the basis of not affecting its radiation characteristics to the greatest extent, which is convenient for processing and system integration, and can be used for radar and ultra-wideband communication system.

Description

technical field [0001] The invention belongs to the field of wireless communication technology and radar technology, and in particular relates to a radar scattering cross-sectional area (RCS) reduction technology of a polarization rotating broadband / ultra-wideband transmission array antenna. Background technique [0002] Radar cross section (Radar Cross Section, abbreviated as RCS) is the most critical concept in radar stealth technology. It is a physical quantity that characterizes the intensity of scattered waves generated by a target in a certain direction under the irradiation of radar waves. When the radar detects the target, the radar radiates the electromagnetic wave energy to a certain direction in the space through the antenna. When the object in this direction is irradiated by the electromagnetic wave, according to Maxwell's equation and the boundary conditions of the electromagnetic field, a new electromagnetic field will be generated around the object and the obje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/23H01Q15/24H01Q13/02H01Q21/00
CPCH01Q13/02H01Q15/23H01Q15/24H01Q21/00
Inventor 屈世伟冯鹏雨肖林王愉心
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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