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An Active Frequency Selective Surface Structure

A frequency-selective surface and band-rejection technology, applied to antennas, electrical components, etc., can solve problems such as conflicting working methods

Active Publication Date: 2021-07-13
武汉灵动时代智能技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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
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  • An Active Frequency Selective Surface Structure

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Embodiment Construction

[0034] The present invention will be further described in detail below in combination with specific embodiments.

[0035] An embodiment of the present invention provides an active frequency selective surface structure, including: at least one compound unit 1, wherein one said compound unit is composed of a non-resonant bandpass structure 10 and a reconfigurable bandstop structure 20 ; One end of the non-resonant band-pass structure 10 is compounded with one end of the reconfigurable band-stop structure 20, and there is a gap between the non-resonant band-pass structure 10 and the reconfigurable band-stop structure 20; the composite unit 1 with a gap between them. Such as figure 1 as shown, figure 1 It is a structural schematic diagram of a composite unit 1 in an embodiment of the specification of the present invention. Wherein, the front view of the reconfigurable band-stop structure 20 is as follows figure 2 shown.

[0036] Specifically, in one embodiment of this specif...

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Abstract

The invention provides an active frequency selective surface structure. By combining a reconfigurable band-stop structure and a non-resonant band-pass structure, the PIN tube can be transparent and the PIN tube can be cut off in a certain wave-transmitting frequency band when the PIN tube is energized. Active controllable between two states of full-frequency shielding at power time. In the wave-transmitting state, the composite structure is equivalent to the superposition of two band-pass filters, so as to realize the wave-transmission in the pass-band; while in the shielding state, the composite structure is equivalent to a band-pass filter and a band-stop filter The superposition of filters to achieve shielding performance over 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/002
Inventor 张岭陈志勇
Owner 武汉灵动时代智能技术股份有限公司