Luneberg lens with variable RCS

A Lumberg lens, a variable technology, applied in electrical components, radio wave measurement systems, antennas, etc., to solve the problems of only changing the azimuth width, but not changing the maximum RCS value, and the overall complexity of the system.

Pending Publication Date: 2020-09-08
NO 60 RES INST OF GENERAL STAFF DEPT PLA
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] Chinese Patent CN107037407A "A Corner Reflector with Adjustable RCS Main Lobe Azimuth Width" adds an azimuth width adjustment plate to the traditional corner reflector structure to control the azimuth width, but it cannot change the maximum RCS value in the azimuth , changing only the azimuth width
The active booster adjusts the gain of the booster in real time to simulate the RCS size change of the target at different incident angles, but the overall system is complex and expensive

Method used

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  • Luneberg lens with variable RCS
  • Luneberg lens with variable RCS
  • Luneberg lens with variable RCS

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Embodiment Construction

[0014] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0015] combine Figure 1-Figure 4 , a Lumber lens with variable RCS of the present invention, including a dielectric ball, a reflective surface 4 and an adjustment rod 5; fixed on the target. The dielectric sphere is composed of multiple dielectric layers whose dielectric constants change sequentially. One end of the adjustment rod 5 is fixedly connected to the reflective surface 4, and the other end is connected to the steering gear. The steering gear controls the movement of the adjustment rod 5, thereby driving the movement of the reflective surface 4. By changing the relative position of the multilayer dielectric ball and the reflective surface 4, Realize the adjustment of the RCS characteristics of Lumber ball.

[0016] The dielectric ball is made of foamed polyurethane, the reflective surface 4 is a metal surface, and the adjusting ro...

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Abstract

The invention discloses a Luneberg lens with a variable RCS. The Luneberg lens comprises a dielectric sphere, a reflecting surface and an adjusting rod, wherein the dielectric ball is composed of multiple dielectric layers with dielectric constants changing in sequence; one end of the adjusting rod is fixedly connected with the reflecting surface, and the other end is connected with the driving mechanism; the adjusting rod is controlled by the driving mechanism to move, so that the reflecting surface is driven to move, and the RCS characteristics of the Luneberg ball are adjusted by changing the relative positions of the multilayer dielectric ball and the reflecting surface. According to the invention, the RCS of the Luneberg lens is changed by changing the relative positions of the multilayer dielectric ball and the reflecting surface; the Luneberg lens with the variable RCS can be used in cooperation with a target needing to change the RCS, and meanwhile, the variable RCS Luneberg lens is also suitable for various occasions needing to adjust the RCS.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to a Lunberg lens with variable RCS. Background technique [0002] RCS (radar cross section) characterizes the echo intensity produced by the target under the irradiation of radar waves. In specific occasions, it is necessary to increase or even adjust the RCS value of the target. At present, there are generally two main methods: active radar booster and passive booster. The active radar booster amplifies the power of the received radio frequency signal, and then radiates it through the antenna. Go out to achieve RCS augmentation and adjustment. Passive radar enhancement generally includes: corner reflector, Lunberg lens, etc. The corner reflector is generally a rigid structure composed of mutually perpendicular metal surfaces, and the Lunberg lens is a dielectric lens with a spherical shape as the basic shape. The metal reflector, which gathers and reflects electromagnetic waves...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/06H01Q15/23G01S7/02
CPCG01S7/02H01Q15/23H01Q19/06
Inventor 陈召涛章辉许盼福
Owner NO 60 RES INST OF GENERAL STAFF DEPT PLA
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