Wing-borne low-scattering ultra-wideband conformal phased array based on strong coupling effect

Abstract

The invention discloses a wing-borne low-scattering ultra-broadband conformal phased array based on the strong coupling effect. The entire antenna structure of the array has been subjected to conformal processing, and it realizes the formation direction in the wide frequency band of 0.5-2GHz Compared with the traditional planar ultra-wideband phased array, the ±45°scan has significantly low scattering characteristics inside and outside the working frequency band of the antenna. The whole antenna structure mainly includes: the coaxial feed structure of the antenna radiation unit; the gradient line balun used to connect the antenna radiation patch and the feed structure; the metal floor conformal to the flight carrier; the parasitic metal block on the metal floor ; conformal dielectric substrate used to support the entire phased array antenna radiation structure; connected long slot conformal radiation patch based on strong coupling effect; conformal dielectric substrate used to support resistive electromagnetic metamaterials; with ultra-wideband electromagnetic wave absorption Circular resistive electromagnetic metamaterial for wave action; parasitic slots on both sides of antenna radiating element.

Description

technical field [0001] The invention belongs to the technical field of antenna engineering, and in particular relates to an ultra-wide bandwidth angular scanning conformal phased antenna array system, specifically an ultra-wide-bandwidth angular scanning conformal phased antenna array system based on a strong coupling effect, conformal to a local wing carrier platform, and having low scattering characteristics. Phased antenna array with wide bandwidth angular scan. It is especially suitable for flight carrier platforms that require antennas with good stealth performance and low profile characteristics, and can realize ultra-wide bandwidth angular scanning. Background technique [0002] With the increasing development of modern electronic information technology, especially the increasingly stringent requirements of military electronics on antenna performance, traditional mechanical scanning antennas have been difficult to meet the demand. Because the electronically scanned p...

AI Technical Summary

Problems solved by technology

Its antenna unit adopts a strong coupling ultra-wideband planar antenna array unit, which has not been redesigned in a conformal environment. The curvature of the conformal frustum carrier of the entire phased array antenna is small, and the scattering of the conformal phased array is not considered. The analysis and comparison of the characteristics did not reflect the low scattering characteristics of the phased array conformal on the complex carrier platform

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