CN105140654B - Frequency-adjustable broadband Meta Materials absorbent structure - Google Patents
Frequency-adjustable broadband Meta Materials absorbent structure Download PDFInfo
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- CN105140654B CN105140654B CN201510546581.3A CN201510546581A CN105140654B CN 105140654 B CN105140654 B CN 105140654B CN 201510546581 A CN201510546581 A CN 201510546581A CN 105140654 B CN105140654 B CN 105140654B
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Abstract
The invention discloses a kind of frequency-adjustable broadband Meta Materials absorbent structure, mainly solves the problems, such as that prior art is difficult to wide wave frequency of inhaling with frequency-adjustable.It includes resonance structure (1), medium substrate (2) and metal floor (3)；The resonance structure (1) and metal base plate (3) are located at the upper and lower surface of dielectric-slab (2) respectively；The resonance structure (1) is made up of metal Fang Huan (4), rectangular metal sheet (5), resistance (6) and inductance (7)；Metal Fang Huan (4) opening is that 90 degree of rotational symmetry are distributed；The rectangular metal sheet (5) is symmetrically distributed in the outside of metal Fang Huan (4), and parallel with metal Fang Huan (4) corresponding sides；The resistance (6) is located at metal Fang Huan (4) opening；Inductance (7) the connection rectangular metal sheet (5) and metal Fang Huan (4) corresponding sides；The present invention can realize the wide frequency continuously adjustabe for inhaling wave frequency band by changing the size of resistance value and inductance value.
Description
Technical field
The invention belongs to absorbing material technical field, particularly a kind of frequency-adjustable broadband Meta Materials absorbent structure, this hair
It is bright to be widely applied in stealth technology, radar and Modern Communication System.
Background technology
In recent years, as people gradually step up to the attention rate of Meta Materials absorbent structure, the research of Meta Materials absorbent structure
Design more and more, people are to the performance requirement of Meta Materials absorbent structure also more and more higher, the polarization of common wide frequency band angle
Insensitive Meta Materials absorbent structure can not meet need of the Modern Communication System to the Meta Materials absorbent structure of frequency-tunable
Ask.At present, although the broadband metamaterial absorbent structure of frequency-adjustable has obtained certain progress, also need further research and
Improve, such as document " Adjustable low frequency and broadband metamaterial absorber
based on magnetic rubber plate and cross resonator,Y.Z.Cheng,Y.Nie,Y.Wang,and
It is proposed in R.Z.Gong, J.Appl.Phys., vol.115, no.6,064902,2014 " based on rubber magnetic sheet at low frequency it is real
The method of the existing adjustable Meta Materials absorbent structure in broadband, although the electrical length of the thickness resonator by changing medium substrate,
The regulation to inhaling wave frequency band is realized, but inhales ripple narrower bandwidth, manufacturing cost is higher, and adjusting method is unfavorable for Practical Project and answered
With.And for example document " A New Tunable Dual-band Metamaterial Absorber with Wide-angle TE
and TM Polarization Stability,H.Q.Zhai,C.H.Zhan,L.Liu,and C.H.Liang,Journal
Itd is proposed in of Electromagnetic Waves and Applications, vol.29, no.6, pp.774-785,2015 "
The adjustable Meta Materials absorbent structure of double frequency-band, although adjustability is good, inhale ripple smaller bandwidth, can not meet broadband inhale ripple need
Ask.And for example number of patent application is 201410582139.1, and patent name is《Load the broadband absorbing material of lamped element》In
State's patent, although proposing the method that wide-band and wave-absorbing structure is realized by loading resistor or capacity cell, this method without
Method is realized to be adjusted to the wide frequency for inhaling wave frequency band.
The content of the invention
It is an object of the invention to for deficiency existing for above-mentioned prior art, propose a kind of super material in the broadband of frequency-adjustable
Absorbent structure is expected, to realize the regulation of the suction wave frequency band to absorbent structure in broadband.
Realizing the key problem in technology of the object of the invention is：Design a kind of frequency-adjustable broadband Meta Materials absorbent structure.Its feature
It is to include：Resonance structure, medium substrate and metal floor：
The resonance structure and metal base plate are located at the upper and lower surface of medium substrate respectively；
The resonance structure is 90 degree of rotational symmetry structures, is made up of metal Fang Huan, rectangular metal sheet, resistance and inductance；
The metal Fang Huan has several openings, and resistance is located at metal Fang Huan opening, and this two parts is interconnected.
The rectangular metal sheet is symmetrically distributed in the outside on metal Fang Huan side, and parallel with metal Fang Huan corresponding sides,
Rectangular metal sheet is interconnected by the corresponding sides of inductance and metal Fang Huan.
It is distributed preferably, the opening of the metal Fang Huan is 90 degree of rotational symmetry, and the number of openings phase on each side
Together.
Preferably, the resistance of the resistance is equal, the number in metal Fang Huan each edge is identical.
Preferably, the inductance value of the inductance is equal, and its both ends connects middle part and the metal of rectangular metal sheet respectively
The middle part on Fang Huan side.
Preferably, opening number m >=4 of the metal Fang Huan, number n >=4 of rectangular metal sheet, the number p of resistance
>=4, number q >=4 of inductance, wherein m, n, p, q are 4 multiple, and meet m=p, n=q.
Compared with prior art, the invention has the advantages that：
1st, the present invention forms new mode of resonance and current path, optimizes the present invention due to introducing rectangular metal sheet
Broadband character and tunable characteristic；In addition the present invention can significantly widen suction due to being loaded with resistance and inductance in key position
Wavestrip is wide and effectively changes resonance electrical length, and by changing the size of resistance value and inductance value, can inhale wavestrip keeping wide
Under conditions of width, the regulation that wave frequency band is inhaled to broadband is effectively realized, and regulative mode is flexible.
2nd, the present invention is due to the resonance structure using 90 degree of rotational symmetry so that the present invention has good polarization insensitive
Characteristic.
Brief description of the drawings
Fig. 1 is the structure front view of the embodiment of the present invention；
Fig. 2 is the structural side view of the embodiment of the present invention；
Fig. 3 is suction ripple rate of the embodiment of the present invention under different polarizing angles；
Fig. 4 is suction ripple rate of the embodiment of the present invention in different resistance values and inductance value.
Specific implementation method
The present invention is described further with reference to embodiment accompanying drawing：
Embodiment 1
The broadband Meta Materials absorbent structure of frequency-adjustable, including：Resonance structure 1, dielectric-slab 2 and metal floor 3：
The resonance structure 1 and metal base plate 3 are located at the upper and lower surface of dielectric-slab 2 respectively；
The resonance structure 1 is 90 degree of rotational symmetry structures, by metal side's ring 4, rectangular metal sheet 5, resistance 6 and inductance 7
Composition；
Metal side's ring 4 has several openings, and resistance 6 is located at the opening of metal side's ring 4, and this two parts mutually interconnects
It is logical.
The rectangular metal sheet 5 is symmetrically distributed in the outside on the side of metal side's ring 4, and is put down with the corresponding sides of metal side's ring 4
OK, rectangular metal sheet 5 is interconnected by the corresponding sides of inductance 7 and metal side's ring 4.
Embodiment 2
Referring to Fig. 1 and Fig. 2, frequency-adjustable broadband Meta Materials absorbent structure of the invention, including：Resonance structure 1, medium base
Plate 2 and metal floor 3.Wherein：
The resonance structure 1, it is made up of metal side's ring 4, rectangular metal sheet 5, resistance 6 and inductance 7；Metal side's ring 4
Material therefor is copper, its outside a length of 8mm, width 0.4mm, thickness 0.017mm, the opening number m=4 of metal side's ring 4,
These are open with the formal distribution of 90 degree of rotational symmetry on four sides of metal side's ring 4, and the number of openings on each side is equal
For 1；The rectangular metal sheet 5 is symmetrically distributed in the outside of metal side's ring 4, and parallel with the corresponding sides of metal side's ring 4, the square
The number n=4 of shape sheet metal 5, the numbering of this 4 rectangular metal sheets are followed successively by 5-1,5-2,5-3,5-4, the rectangular metal sheet 5
Material therefor is copper, long and wide respectively 3mm and 0.4mm, but be not limited to this parameter.
The medium substrate 2 uses the FR4 materials of double-sided copper-clad, and its dielectric constant is 4.4, and tangent loss angle is 0.02,
The length of medium substrate 2 is 12mm, width 12mm, thickness 3mm in the present embodiment, but is not limited to this parameter.
Metal used in the metal floor 3 is copper, and its length is 12mm, width 12mm, thickness 0.017mm, but not
It is confined to this parameter.
The resonance structure 1 and metal base plate 3 are located at the upper and lower surface of medium substrate 2 respectively.
The number p=4 of the resistance 6, the numbering of this 4 resistance are followed successively by 6-1,6-2,6-3 and 6-4, each resistance 6
Resistance it is identical, it is respectively positioned on the opening of metal side's ring 4, and this two parts is interconnected；The number q=4 of the inductance 7,
The numbering of this 4 inductance 7 is followed successively by 7-1,7-2,7-3,7-4, and the inductance value of each inductance 7 is identical, and its both ends connects respectively
The middle part of rectangular metal sheet 5 and the middle part of the corresponding sides of metal side's ring 4；The resistance of resistance 6 is 100ohm, 150ohm and 200ohm,
The inductance value of inductance 7 is 0.2nh and 0.4nh, but is not limited to this parameter.
The effect of the present invention can be further illustrated by following simulation result figure：
The polarization characteristic of the frequency-adjustable broadband Meta Materials absorbent structure of the present invention is studied：By the polarization of incidence wave
Angle emulates from when increasing to 30 degree, 60 degree and 90 degree for 0 degree to the present embodiment, and obtained suction ripple rate result is as shown in Figure 3.
From figure 3, it can be seen that when the polarizing angle change of incidence wave, the suction ripple rate of broadband of the invention is adjustable Meta Materials absorbent structure
And inhale that wavestrip is wide is basically unchanged, illustrate that the adjustable Meta Materials absorbent structure in broadband of the present invention has the insensitive characteristic of good polarization.
The adjustable wide frequency band characteristic of the frequency-adjustable broadband Meta Materials absorbent structure of the present invention is studied：Choose resistance
6 and the value of inductance 7 when being respectively 100ohm and 0.4nh, 150ohm and 0.4nh, 200ohm and this three class value of 0.2nh, to this reality
Apply example to be emulated, obtained suction ripple rate result is as shown in Figure 4.Figure 4, it is seen that when the appropriate resistance value of selection and electricity
During inductance value, broadband of the invention is adjustable, and Meta Materials absorbent structure can be about 3.5GHz keeping inhaling bandwidth of the ripple rate more than 90%
When, effectively realize the wide continuously adjustabe for inhaling wave frequency band.
Above-described embodiment result shows that broadband of the invention is adjustable, and Meta Materials absorbent structure has good polarization insensitive
Characteristic, while the wide continuously adjustabe for inhaling wave frequency band can be realized well.
Above description is only example of the present invention, it is clear that for those skilled in the art, is being understood
After present invention and principle, it may all carry out in form and details in the case of without departing substantially from the principle of the invention, structure
Various modifications and variations, but these modifications and variations based on inventive concept are still in the claims of the present invention
Within.
Claims (2)
1. frequency-adjustable broadband Meta Materials absorbent structure, including：Resonance structure (1), dielectric-slab (2) and metal floor (3)：Institute
State the upper and lower surface that resonance structure (1) and metal base plate (3) are located at dielectric-slab (2) respectively；The resonance structure
(1) it is 90 degree of rotational symmetry structures, is made up of metal Fang Huan (4), rectangular metal sheet (5), resistance (6) and inductance (7)；
The metal Fang Huan (4) has several openings, and resistance (6) is located at metal Fang Huan (4) opening, and this two parts
It is interconnected；The rectangular metal sheet (5) is symmetrically distributed in the outside on metal Fang Huan (4) side, and with metal Fang Huan (4)
Corresponding sides it is parallel, rectangular metal sheet (5) is interconnected by the corresponding sides of inductance (7) and metal Fang Huan (4)；
The opening of the metal Fang Huan (4) is 90 degree of rotational symmetry, and the number of openings on each side is identical；
The resistance of the resistance (6) is equal, and the number in each edge of metal Fang Huan (4) is identical；
The inductance value of the inductance (7) is equal, and its both ends connects middle part and the metal Fang Huan of rectangular metal sheet (5) respectively
(4) middle part of corresponding sides.
2. the frequency-adjustable broadband Meta Materials absorbent structure according to claim 1, it is characterized in that：The metal Fang Huan (4)
Opening number m >=4, number n >=4 of rectangular metal sheet (5), number p >=4 of resistance (6), inductance (7)
Number q >=4, wherein m, n, p, q is 4 multiple, and meets m=p, n=q.
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| CN105140654B true CN105140654B (en) | 2018-02-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111883934B (en) * | 2020-08-10 | 2021-06-01 | 西安电子科技大学 | Low RCS antenna based on ultra wide band miniaturized wave absorber |
| CN111817025B (en) * | 2020-09-03 | 2022-04-29 | 浙江科技学院 | Adjustable graphene terahertz frequency selector |
| CN112259970B (en) * | 2020-09-28 | 2022-08-09 | 东莞同济大学研究院 | Broadband wave-transmitting absorption-transmission integrated electromagnetic superstructure |
| CN114221118B (en) * | 2021-12-08 | 2024-03-26 | 哈尔滨工程大学 | Broadband metamaterial structure |
| CN116864994B (en) * | 2023-08-04 | 2024-01-16 | 中南大学 | Double-impedance-layer high-performance wave-absorbing structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026531A (en) * | 2010-12-22 | 2011-04-20 | 浙江大学 | Super-matching wave-absorbing material formed by utilizing sheeted cross-shaped metal unit structure |
| CN102800943A (en) * | 2011-05-31 | 2012-11-28 | 深圳光启高等理工研究院 | Dual-polarized antenna and MIMO (multiple input multiple output) antenna with same |
| CN204156097U (en) * | 2014-10-27 | 2015-02-11 | 武汉市工程科学技术研究院 | Load the broadband absorbing material of lamped element |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030142036A1 (en) * | 2001-02-08 | 2003-07-31 | Wilhelm Michael John | Multiband or broadband frequency selective surface |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026531A (en) * | 2010-12-22 | 2011-04-20 | 浙江大学 | Super-matching wave-absorbing material formed by utilizing sheeted cross-shaped metal unit structure |
| CN102800943A (en) * | 2011-05-31 | 2012-11-28 | 深圳光启高等理工研究院 | Dual-polarized antenna and MIMO (multiple input multiple output) antenna with same |
| CN204156097U (en) * | 2014-10-27 | 2015-02-11 | 武汉市工程科学技术研究院 | Load the broadband absorbing material of lamped element |
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