C-band broadband energy selective surface

Abstract

The invention provides a C-band broadband energy selective surface which comprises a dielectric substrate and a metal structure layer attached to the surface of the dielectric substrate. The metal structure layer is of a periodic array structure formed by uniformly arranging a plurality of metal units. Each metal unit comprises two annular metal patches, the two annular metal patches are longitudinally adjacent, a certain distance is reserved between the longitudinally adjacent transverse ring edges of the two annular metal patches, and a lumped capacitor is loaded between the longitudinally adjacent transverse ring edges of the two annular metal patches. The two ends of the lumped capacitor are respectively welded on the longitudinal adjacent transverse annular edges of the two annular metal patches. Two longitudinal metal patches are oppositely arranged between the transverse annular edges of each annular metal patch, a certain distance is reserved between the two longitudinal metalpatches, and a switching diode is loaded between the two longitudinal metal patches. According to the invention, when the external signal energy exceeds a design threshold, the diode is automaticallyconverted into a positive bias state, the signal passband is closed, and the strong electromagnetic pulse is shielded, so that the electronic equipment is protected.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic protection, and in particular relates to a broadband energy selection surface working in the C-band. Background technique [0002] With the rapid development of electronic information technology, the degree of integration, intelligence and miniaturization of various electronic information equipment is continuously improved, its frequency is increasing day by day, energy consumption is also decreasing day by day, and its performance has been greatly improved. The sensitivity and vulnerability of electronic information equipment to strong electromagnetic interference and strong electromagnetic attack. At the same time, in addition to the strong electromagnetic interference that exists in nature, man-made strong electromagnetic interference and attack methods are becoming more and more mature. Sensitive equipment in the military and civil fields are facing more complex strong electromagnetic ...

AI Technical Summary

Problems solved by technology

However, it contains a two-layer structure and the number of diodes required for a single unit is as high as 9, which is not only costly, but also low reliability

However, the energy selection device applied to the C-band is still blank.

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