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An Active Frequency Selective Surface Structure

A technology of frequency selective surface and resonance band, applied in circuits, waveguide-type devices, electrical components, etc., and can solve problems such as working mode contradictions

Active Publication Date: 2021-10-08
武汉灵动时代智能技术股份有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to provide an active frequency selective surface structure to solve the problem that the working state of the PIN tube in the prior art is inconsistent with the working mode of the actual radar

Method used

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  • An Active Frequency Selective Surface Structure
  • An Active Frequency Selective Surface Structure
  • An Active Frequency Selective Surface Structure

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Embodiment Construction

[0038] The present invention will be further described in detail below in combination with specific embodiments.

[0039] An embodiment of the present invention provides an active frequency selective surface structure, including: a non-resonant bandpass structure, a plurality of passive resonant bandpass structures and at least one reconfigurable active resonant bandpass structure are compositely overlapped;

[0040] Such as figure 1 As shown, the reconfigurable active resonant bandpass structure 1 is located between the plurality of passive resonant bandpass structures 2, and one end of the non-resonant bandpass structure 3 is connected to the plurality of passive resonant bandpass structures A composite overlap in the pass structure 2; there are gaps between the reconfigurable active resonant bandpass structure 1 and a plurality of passive resonant bandpass structures 2, the non-resonant bandpass structure 3 and the passive resonant band There is no gap between the through ...

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Abstract

The present invention provides an active frequency selective surface structure, through the combination of a reconfigurable active resonant bandpass structure and a non-resonant bandpass structure to achieve a certain wave-transmitting frequency band and PIN Active and controllable between the two states of full-frequency shielding when the tube is powered off. At this time, in the wave-transparent state, the composite structure is equivalent to the superposition of two band-pass filters, thereby realizing wave-transmission in the pass-band; while in the shielded state, the composite structure is equivalent to a band-pass filter and a Superposition of band-stop filters to achieve shielding performance in the full frequency band.

Description

technical field [0001] The invention belongs to the field of microwave metamaterials and relates to an active frequency selective surface structure. Background technique [0002] The gigahertz band (GHz) is widely used in the radar field. The airborne or missile-borne radar usually has its antenna inactive for quite a long time in level flight, and the radar will only be activated when it is close to the target, and the aircraft is most likely to be intercepted and intercepted by enemy radar during this period of level flight. track. Taking advantage of this feature, the use of an electrically controllable stealth active smart radome can ensure that the radar is in a stealth state in the level flight stage and in a wave-transparent state in the final stage. Therefore, the active controllable mechanism of the electric controllable stealth active smart radome is just very important. [0003] Generally speaking, there are two types of existing active frequency selective surf...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20
CPCH01P1/20
Inventor 张岭陈志勇
Owner 武汉灵动时代智能技术股份有限公司
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