Intelligent skin antenna capable of self-adaptively changing radiation and scattering characteristics

Abstract

The invention discloses an intelligent skin antenna capable of self-adaptively changing radiation and scattering characteristics, and aims to provide an intelligent skin antenna, which is capable of perceiving an external electromagnetic environment, and adjusting and controlling radiation/scattering characteristics in real time. The scheme in the invention is as follows: a Wearable sensor sends the fact that a radar wave monitoring result exists or not to a single chip microcomputer control unit through a multifunctional device; the single chip microcomputer control unit judges the radiation/scattering mode according to the TTL high and low levels of the address code corresponding to each channel of the multifunctional device; the radiation/scattering performances of the antenna are re-distributed according to requirements; furthermore, a power supply is controlled to apply different voltage values on a polyaniline conductive polymer, so that grading absorption of wave-transmitting radiation or radar wave of the intelligent skin antenna is obtained; in the radiation mode, a weight value obtained through a cloud genetic algorithm in advance is calculated into an amplitude/phase control code, and sent to an active antenna array, so that the low-sidelobe needle beam is realized; in the scattering mode, different voltage values are applied on an electrochromic skin wave-transmitting layer, so that wave absorption is realized; and the low interception probability and the low observable characteristic can be realized self-adaptively.

Description

technical field [0001] The invention relates to a realization method of an adaptive skin antenna capable of intelligent perception, low interception and low observability in the field of electronic technology. Background technique [0002] With the continuous development of stealth technology, the reduction of antenna radar cross-section (RCS) becomes the key to realize the electromagnetic stealth characteristics of low-scattering platforms. Skin antennas are an important technical direction for antenna RCS reduction, and cavity scattering is an unavoidable problem for skin antennas. Traditional antennas installed on the surface of the aircraft will not only affect the aerodynamic shape of the aircraft, but also greatly reduce the stealth performance of the aircraft. The installation and fixing of traditional large-aperture antennas on the aircraft is a very prominent problem. First, the space of the platform is limited, and it is almost impossible to install a large planar...

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Problems solved by technology

[0007] Chinese patent ZL201310492003.7 discloses an "embedded smart skin antenna", which uses an optical fiber sensing network, a reconfigurable antenna, and a reconfigurable feed network to realize self-diagnosis of the skin antenna's working status and antenna radiation performance Reconfigurable, which ensures the radiation performance of the embedded smart skin antenna, avoids the defect that the performance of the traditional array antenna is degraded or can no longer be used after some sub-arrays are damaged, and solves the problem of the traditional phased array antenna arraying at a large scanning angle The defect of excessive gain loss, but this patent does not involve the realization method of the self-adaptation of the scattering characteristics of the smart skin antenna, and does not provide a technical solution for the comprehensive design of antenna radiation and scattering

[0015] Generally speaking, the comprehensive design technology of antenna radiation and scattering reported in domestic and foreign literature at present has the disadvantage that none of them can adaptively change the radiation characteristics and scattering characteristics of the antenna according to the changes of the external electromagnetic environment.

Therefore, for the antenna system, how to accurately perceive changes in the external electromagnetic environment, flexibly select processing strategies, adaptively change the radiation characteristics and scattering characteristics of the antenna, and achieve low probability of interception (LPI) and low observable characteristics of the antenna (LO), there is no technical solution yet

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