Absorbing and reconfigurable radome for asymmetric transmission of electromagnetic waves and energy isolation

An asymmetric transmission and radome technology, applied in the field of radome, can solve problems such as the difficulty of antenna cooperation and the difficulty of applying integrated microwave devices

Active Publication Date: 2021-07-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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Problems solved by technology

In practical engineering applications, many anti-jamming protections require the use of non-reciprocal electromagnetic materials, such as: working with large-scale ferrite materials under the condition of static magnetic field bias, but these materials are difficult to apply to integrated microwave devices. Difficult to work with antenna

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  • Absorbing and reconfigurable radome for asymmetric transmission of electromagnetic waves and energy isolation
  • Absorbing and reconfigurable radome for asymmetric transmission of electromagnetic waves and energy isolation
  • Absorbing and reconfigurable radome for asymmetric transmission of electromagnetic waves and energy isolation

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Embodiment Construction

[0017] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Hereinafter, embodiments of the present invention will be described in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refe...

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Abstract

The embodiment of the invention discloses a radome capable of absorbing and reconfiguring asymmetric transmission and energy isolation of electromagnetic waves, which relates to the technical field of electromagnetic compatibility and can realize asymmetric transmission and energy isolation for small signals and high-energy electromagnetic waves respectively. The invention includes: the broadband polarization rotator is composed of 3 layers, including: the front and rear layers are grating structures perpendicular to each other, forming a Fabry-Perot cavity; the middle layer of the broadband polarization rotator is inclined at 45° Elliptical resonant structure; the switchable FSR is also composed of a 3-layer structure, including: the front and rear lossy layers with the same structure, and the front and rear lossy layers are spatially symmetrical about the middle layer; the middle layer of the switchable FSR The layer is a lossless layer; and each layer of the absorbing and switchable FSR is embedded with a PIN tube, a resistor, and a capacitor lumped element. The invention is applicable to a non-reciprocal radome for anti-electromagnetic interference.

Description

technical field [0001] The invention relates to the technical field of electromagnetic compatibility, in particular to a radome capable of absorbing and reconfiguring to realize asymmetric transmission of electromagnetic waves and energy isolation. Background technique [0002] Electromagnetic waves are the carrier of information generation, transmission, reception, processing and storage. In a complex electromagnetic environment, any electronic and electrical product must ensure that it can work normally in addition to being able to withstand certain external electromagnetic interference. Usually, radiated interference occurs in the media around the product. Generally speaking, the electromagnetic interference emitted through the casing, or the interference intruded through the casing is radiated interference. Conventional protective measures (such as radar absorbing material technology, etc.) cannot simply be applied in antenna protection. In fact, the radar antenna syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42H01Q15/00
CPCH01Q1/422H01Q15/002
Inventor 袁警孔祥鲲
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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