Ultra-wideband bionic antenna with low radar scattering cross section

Abstract

The invention discloses an ultra-wideband bionic antenna with a low radar scattering cross section, and mainly solves the problems that existing ultra-wideband antenna radar has high scattering cross section and can be easily found by radar. The ultra-wideband bionic antenna with the low radar scattering cross section comprises a radiation unit (2), a radiant floor (3) and an SMA coaxial adapter substitute. The antenna radiating unit and the antenna radiation floor are respectively printed on both sides of a medium material board (1), and are respectively connected with an inner core (4) and an outer core (5) of the SMA coaxial adapter substitute. The radiating unit is designed to be a sectoral structure comprising a rectangular column and a plurality of arc strips symmetrically arranged on the rectangular column in accordance with a design thinking similar to insect antennae, the degrees of the central angles of the arc strips are identical, and the sizes of semi-diameters are progressively increased according to equal intervals from the top to the bottom; and both sides of the radiant floor are rectangles with inversed 90-degree arc angles. The invention has the advantages of wide frequency band and good hiding performance, thereby being capable of being used as the ultra-wideband antenna on a hiding target vector.

Description

Technical field [0001] The invention belongs to the field of antenna technology, in particular a bionic antenna, which can be used for stealth and ultra-wideband reception and transmission. Background technique [0002] The radar cross section RCS is one of the most basic parameters that characterize the identifiable characteristics of a target in radar detection technology, stealth and anti-stealth technology. It is a measure of the target's return power in a given direction under plane wave irradiation. Radar cross section reduction is to control and reduce the radar cross section of military targets, reduce the combat effectiveness of enemy electronic detection systems and weapon platforms, thereby improving the penetration and survivability of military targets. How to reduce the radar cross section of the target and the effect of reduction are of great significance to the victory or defeat of the war under the current complex electromagnetic environment. For low-visibility p...

AI Technical Summary

Problems solved by technology

However, the radiation floor and the radiation unit of these antennas are often not in the same plane, which is not conducive to the conformality of the antenna and the carrier, thus limiting the practical engineering application of these ultra-wideband antennas; figure 1 An existing ultra-broadband planar monopole antenna is given. A circular radiating element with a radius of 16 mm is printed on the front of the antenna, and a rectangular radiating floor with a length of 42 mm and a width of 16 mm is printed on the back. Although the antenna has a good ultra-wide operating frequency band, the circular radiation unit makes the antenna radar scattering cross-section very high, which is not conducive to the stealth of the antenna

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