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A Miniaturized Bandstop Frequency Selective Surface

A frequency-selective surface, band-stop technology, applied in waveguide-type devices, circuits, electrical components, etc., can solve the problem of low degree of miniaturization, and achieve the effect of reducing size, increasing inductance and capacitance, and improving the effect of miniaturization

Active Publication Date: 2019-07-16
XIDIAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects in the above-mentioned prior art, and propose a miniaturized band-stop frequency selective surface, which is used to solve the technical problem of low miniaturization existing in the existing frequency selective surface

Method used

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  • A Miniaturized Bandstop Frequency Selective Surface
  • A Miniaturized Bandstop Frequency Selective Surface
  • A Miniaturized Bandstop Frequency Selective Surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] refer to figure 1 , a miniaturized band-stop frequency selective surface, the frequency selective surface unit includes a first dielectric substrate 1 and a second dielectric substrate 2 stacked up and down; between the first dielectric substrate 1 and the second dielectric substrate 2 , a third dielectric substrate 4 is provided, and the three dielectric substrates form a stacked structure arranged from top to bottom.

[0022] The upper surface of the first dielectric substrate 1 and the lower surface of the second dielectric substrate 2 are respectively printed with two first split metal rings 3 with opposite openings, and the two first split metal rings 3 on the same dielectric plate surface The distances from the four open ends of the four open ends to the center lines of one group of opposite sides on the surface of the dielectric board and the center lines of the other group of opposite sides are equal, wherein the two first open metal rings 3 on the second dielec...

Embodiment 2

[0032] Embodiment 2, this embodiment has the same structure as Embodiment 1, only the following parameters have been adjusted:

[0033] The first dielectric substrate 1, the third dielectric substrate 4 and the second dielectric substrate 2 all adopt the length of t=6mm, the thickness of h=1mm, the corresponding opening ends of the two first open metal rings 3 on the same dielectric substrate plate surface The distance between them is d=0.4mm, the length is p=5.8mm, the line width is w=0.1mm, and the line width of the second split metal ring 5 is 0.1mm.

Embodiment 3

[0034] Embodiment 3, the structure of this embodiment is the same as that of Embodiment 1, only the following parameters have been adjusted:

[0035] The first dielectric substrate 1, the third dielectric substrate 4 and the second dielectric substrate 2 all use the corresponding openings of the two first open metal rings 3 on the same dielectric substrate plate surface with a length of t=4.6mm and a thickness of h=0.5mm. The distance between the ends is d=1.5mm, the length is p=4.4mm, the line width is w=0.6mm, and the line width of the second open metal ring 5 is 0.6mm.

[0036] Below by simulation experiment, the technical effect of the present invention is described further:

[0037] 1. Simulation conditions and simulation content:

[0038] The simulation uses commercial software HFSS_15.0;

[0039] Simulation 1, the transmission coefficient curve of the TE wave in the embodiment 1 of the present invention is simulated from the incidence angle 0 ° ~ 70 °, and the results...

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Abstract

The invention provides a miniaturized band-stop frequency selective surface, which is used for solving a technical problem of low miniaturization degree existing in the prior art. The miniaturized band-stop frequency selective surface comprises M*N periodically arranged frequency selective surface units, wherein each unit includes a first dielectric plate, a third dielectric plate and a second dielectric plate which are laminated from top to bottom, the upper surface of the first dielectric plate and the lower surface of the second dielectric plate are respectively provided with two first openmetal rings with a rectangular ring structure, the open metal rings of the second dielectric plate are located at the position where the projection of the open metal rings of the first dielectric plate on the lower surface of the second dielectric plate is located after being rotated by 90 degrees; the upper and lower surfaces of the third dielectric plate are respectively provided with four second open metal rings with a U-shaped structure, and the open metal rings on the lower surface are respectively located at the downward projection positions of the open metal rings on the upper surface;and the open metal rings of the first dielectric plate and the open metal rings of the third dielectric plate are connected through metal through holes, the open metal rings of the third dielectric plate and the open metal rings of the second dielectric plate are connected through metal through holes, and the open metal rings on the upper and lower surfaces of the third dielectric plate are connected through metal through holes.

Description

technical field [0001] The invention belongs to the field of electromagnetic field and microwave technology, and relates to a miniaturized band-stop frequency selective surface, which can be used in many scenarios that have strict requirements on the miniaturization of the frequency selective surface, such as satellite communications and reflector antennas. Background technique [0002] Frequency Selective Surface (FSS) is a two-dimensional periodic structure composed of periodic arrangements of resonant units. It can be divided into band-pass type and band-stop type according to its function. Most of the resistive frequency selection surfaces are metal patches. These characteristics make frequency selective surfaces widely used in civilian fields such as spatial filters and antenna reflectors. However, when the frequency selective surface is applied in the above fields, it faces a prominent problem, that is, when the frequency selective surface is used in a limited area, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20H01P1/203
CPCH01P1/20H01P1/203
Inventor 姜文陈帅崔阳强洪涛龚书喜
Owner XIDIAN UNIV