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A flexible electromagnetic structure with controllable passband

An electromagnetic structure and flexible technology, applied in circuits, electrical components, antennas, etc., can solve the problems of incompatibility of FSS radome with RCS reduction function, hard passband controllable electromagnetic structure unable to form curved surfaces, etc.

Active Publication Date: 2021-03-23
BEIJING INST OF ENVIRONMENTAL FEATURES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the incompatibility of the RCS reduction function in the existing FSS radome, and the problem that the hard passband controllable electromagnetic structure cannot be shaped into a curved surface

Method used

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  • A flexible electromagnetic structure with controllable passband
  • A flexible electromagnetic structure with controllable passband
  • A flexible electromagnetic structure with controllable passband

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] A flexible electromagnetic structure with controllable passband, such as figure 1 As shown, it includes AFSS layer 1, dielectric layer 2 and feeder layer 3, where AFSS refers to a reconfigurable frequency selective surface, AFSS layer 1 is located above dielectric layer 2, and feeder layer 3 is located below dielectric layer 2, The to...

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Abstract

The invention relates to a flexible electromagnetic structure with a controllable passband. The structure comprises an AFSS layer, a dielectric layer and a feed line layer, wherein the AFSS layer is located above the dielectric layer, the feed line layer is located below the dielectric layer, total overlapping thickness of the AFSS layer, the dielectric layer and the feed line layer ranges from 0.4 mm to 1 mm, the AFSS layer is composed of a plurality of sets of units A etched into hexagons, and a plurality of variable resistance diodes are erected in the units A at intervals. The structure isadvantaged in that the structure is flexible and formable, can be applied to preparation of radomes of any curved surface structures, and reduces the head-direction RCS of radar systems inside and outside a passband on the premise of ensuring normal operation of the antenna systems.

Description

technical field [0001] The invention relates to the field of flexible electromagnetic technology, in particular to a flexible electromagnetic structure with controllable passband. Background technique [0002] The currently widely used FSS radome technology is an effective means to reduce the RCS of the antenna system, but its reduction effect is only effective for bands outside the radar operating frequency band. In the operating frequency band of the radar system, in order to ensure the normal operation of the antenna, the radome is required It is completely transparent to the working frequency band, so when the antenna of the radar system is not working, the traditional FSS radome still shows completely transparent characteristics to it, and the entire working frequency band is completely exposed. In addition, the currently designed pass-band controllable FSS is generally thicker and can only be processed into rigid flat plate samples, which has poor applicability. [00...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42
CPCH01Q1/422H01Q1/427
Inventor 李浩彤车永星戚开南
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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