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RCS evaluation carrier for vertical polarized waves

A vertical polarization and carrier technology, applied in radio wave measurement systems, instruments, etc., can solve the problem that low-scattering carriers cannot meet the low-scattering measurement of RCS components, etc., to facilitate target measurement, weaken backscattering, and good surface current guidance The effect of action

Active Publication Date: 2021-07-06
BEIJING INST OF ENVIRONMENTAL FEATURES
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Problems solved by technology

[0006] In order to solve the technical problem that the low-scattering carrier in the prior art cannot satisfy the low-scattering measurement of vertical polarization of RCS components, the present invention provides an RCS evaluation carrier for vertically polarized waves

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  • RCS evaluation carrier for vertical polarized waves
  • RCS evaluation carrier for vertical polarized waves
  • RCS evaluation carrier for vertical polarized waves

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] The object of the present invention is to provide an RCS evaluation carrier for vertically polarized waves, which solves the problem of electromagnetic scattering measurement (RCS evaluation problem) of components under the irradiation of vertically polarized waves. The specific application object of the present invention—the low-scattering carrier adopts a pure metal outer surface, which has strong deformation ...

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Abstract

The invention relates to an RCS evaluation carrier for vertical polarized waves. The RCS evaluation carrier is composed of a metal frame structure and a metal skin wrapping the metal frame structure. The overall appearance of the RCS evaluation carrier is in a flat cone shape, and the RCS evaluation carrier comprises a top face and a bottom face. The top surface adopts a rhombic design; the bottom surface is a smooth arc-shaped curved surface; the head part and the tail part of the RCS evaluation carrier are pointed cones, and the middle part of the RCS evaluation carrier is an arc-shaped transition section; and the pointed cone at the tail part of the RCS evaluation carrier is designed to be bent downwards. The RCS evaluation carrier solves the problem of RCS evaluation of aircraft parts under the irradiation of the vertical polarized waves; the RCS evaluation carrier can have very low backscattering within the azimuth angle of 0-50 degrees, the mean value reaches the magnitude of-50 dBm < 2 >, and in the angular domain, the low-backscattering carrier is combined with a component for use, so that the accurate vertical polarization RCS of the component can be obtained.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic scattering measurement and relates to an RCS evaluation carrier, in particular to an RCS evaluation carrier for vertically polarized waves. Background technique [0002] When measuring the RCS (radar cross section) of an aircraft component in a microwave anechoic chamber, if the component is tested separately, its edge and internal structure will affect the accuracy of the test. Therefore, a low-scattering carrier is required to eliminate the edge effect of the component and at the same time shield the internal structure of the component, etc. Interference sources that affect the test. The low-scattering carrier and the target are designed in an integrated structure, and the two are closely and smoothly combined to realize accurate measurement of RCS in the test field with low background noise. [0003] At present, the shapes of low-scattering carriers used for vertical polarization are s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 汪勇峰赵轶伦徐颖戚开南
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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