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A three-dimensional bandpass frequency selective structure and its manufacturing method

A technology of frequency selection and production method, which is applied in the field of metamaterial frequency selection technology, can solve problems such as poor angular stability, achieve the effects of enhanced mechanical properties, good frequency cut-off effect, and improved engineering application value

Inactive Publication Date: 2020-11-13
AIR FORCE UNIV PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, many three-dimensional frequency selective structures are difficult to achieve a good frequency cutoff effect, and the angular stability is poor

Method used

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  • A three-dimensional bandpass frequency selective structure and its manufacturing method
  • A three-dimensional bandpass frequency selective structure and its manufacturing method
  • A three-dimensional bandpass frequency selective structure and its manufacturing method

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Embodiment Construction

[0027] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0028] Such as figure 1 , figure 2 with Figure 7 As shown, a three-dimensional band-pass frequency selection structure provided by an embodiment of the present invention includes: a plurality of band-pass frequency selection units distributed periodically, and each band-pass frequency selection unit includes a surface plasmon panel unit and a length×width The metal square-hole honeycomb with a height of a×b×h, the surface plasmon panel unit is connected with the metal square-hole honeycomb along the height direction, and the surface plasmon panel unit passes through the center point of the metal square-hole honeycomb and connects with the metal The panels of length a in a square-cell honeycomb are parallel.

[0029] I...

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Abstract

The invention relates to the application field of metamaterial frequency selection technology, and discloses a three-dimensional band-pass frequency selection structure and a manufacturing method thereof. The three-dimensional band-pass frequency selection structure includes: a plurality of band-pass frequency selection units distributed periodically, each band-pass frequency The selected units all include a surface plasmon panel unit and a metal square-hole honeycomb whose length×width×height is a×b×h. The surface plasmon panel unit is connected with the metal square-hole honeycomb along the height direction, and the surface plasmon The meta-panel unit passes through the central point of the metal square-hole honeycomb and is parallel to the panel with a length a in the metal square-hole honeycomb. This three-dimensional bandpass frequency selection structure improves the frequency cut-off effect while realizing broadband filtering, and has a good angular stability. The mechanical properties of the frequency selective structure are enhanced by introducing metal square-hole honeycombs.

Description

technical field [0001] The invention relates to the application field of metamaterial frequency selection technology, in particular to a three-dimensional bandpass frequency selection structure and a manufacturing method thereof. Background technique [0002] Frequency selective structures are widely used in the design of spatial filters, radome and so on. For the traditional two-dimensional frequency selective surface, in order to obtain a wider bandwidth and a flatter filtering effect within the band, a cascaded multi-layer structure is usually used. With the in-depth development of metamaterial frequency selection technology, it is found that the three-dimensional frequency selection structure can realize quasi-elliptic filtering characteristics by controlling the propagation mode of electromagnetic waves, thereby improving the filtering effect. However, many three-dimensional frequency selective structures are difficult to achieve a good frequency cut-off effect, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/0013
Inventor 马华蒋伟范亚王甲富王军屈绍波
Owner AIR FORCE UNIV PLA
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