Resistor loading square ring ultra wide band wave absorbing structure

Abstract

The invention discloses a resistance loading square ring ultra-wideband wave-absorbing structure which comprises a surface skin dielectric layer, an impedance matching dielectric layer, a resistance loading square ring functional layer, a functional layer substrate, a structure supporting dielectric and a conductive reflecting layer which are sequentially arranged from top to bottom. The resistor loading square ring functional layer is composed of N * N square ring loops, each square ring loop is composed of a plurality of conductive square plates and a plurality of resistors, the conductive square plates are connected through the resistors to form a closed loop of the square rings, and the conductive square plates and the resistors are evenly distributed on the loop. The resistor loading square ring ultra-wideband wave-absorbing structure is simple in structure, wide in wave-absorbing frequency band and efficient in wave-absorbing performance, ultra-wideband high-performance electromagnetic wave absorption can be achieved, and the resistor loading square ring ultra-wideband wave-absorbing structure has wide application prospects in the fields of stealth technology, RCS reduction, electromagnetic compatibility design and the like.

Description

technical field [0001] The invention relates to the technical field of electromagnetic wave absorption, in particular to a resistance-loaded square-ring ultra-broadband wave-absorbing structure. Background technique [0002] Absorbing structures have extensive and profound application requirements in modern application scenarios, such as avoiding signal interference in similar frequency bands of multiple signal transmission systems in electronic equipment, reducing the scattering cross section of radar antennas, and stealth technology. [0003] Salisbury screens and Jaumann absorbers are earlier traditional absorbing structures with single (Salisbury) or multiple (Jaumann) resistive layers. However, the absorption band of the Salisbury screen is relatively narrow, and Jaumann increased the thickness of the absorbing structure while expanding the bandwidth. To achieve thin broadband absorption, Munk proposed circuit-analog (CA) absorbing structures based on frequency-selecti...

AI Technical Summary

Problems solved by technology

However, in practical applications, the reflectivity of -10dB cannot meet the application requirements of some scenarios, such as stealth technology, RCS reduction, electromagnetic compatibility design, etc.

Moreover, the functional layers of many current designs are exposed, so it is difficult to be used in outdoor environments, so it is of great significance to develop absorbing structures for more complex electromagnetic environments

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