Microwave Jerusalem cross absorber by metamaterial split ring resonator load to obtain polarization independence with triple band application

Jafari, Fereshteh Sadat; Naderi, Mohammad; Hatami, Ahmad; Zarrabi, Ferdows B.

doi:10.1016/j.aeue.2019.02.002

Cited by 76 publications

(36 citation statements)

References 35 publications

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“…Many techniques have been applied to create the metamaterials used for multi-frequency band operation. The unit cell with Jerusalem cross structure proposed in [12]- [14] is able to clearly adjust the frequency band but its structure has a length of λ/2 which is large and this technique can be used in E-plane and H-plane when connecting with antenna. Therefore, many researchers were interested in the interdigital technique to reduce the size of unit cell [15]- [17].…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Metamaterial Based on Jerusalem Cross Structure With Interdigital Technique for LTE and WLAN Systems

et al. 2020

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This paper presents a novel metamaterial based on Jerusalem cross structure with interdigital technique to be applied for dual-band systems. The proposed structure can operate at resonant frequencies of 1.8 and 5.5 GHz for LTE and WLAN bands, respectively. The interdigital structure was added to connect at the end of the Jerusalem cross structure in order to control the resonant frequencies and to promote for permittivity adjustment. The proposed metamaterial unit cell was designed to achieve the simulated dual-band operation with bandwidths of 1.70 ∼ 1.95 GHz at 1.8 GHz and 5.06 ∼ 6.04 GHz at 5.5 GHz, respectively. The unit cell size is reduced from λ/2 to λ/4 which is much smaller than the conventional structure. The 5×5 unit cells of metamaterials were implemented as a reflector for a dipole antenna resulting in dual-band operation with bandwidths of 1.58 ∼ 1.88 GHz at 1.8 band and 5.05 ∼ 5.68 GHz at 5.5 band, respectively. Besides, the dipole antenna with the proposed metamaterial reflector has measured gains up to 8.23 dBi at 1.8 GHz and 8.30 dBi at 5.5 GHz, respectively. Moreover, the shape of metamaterial structure is symmetrical, so it can be used for dual linear polarization. Also, the antenna with the proposed reflector has low profile with the distance of λ/8 between radiator and reflector. Therefore, the proposed metamaterial can be applied for any antenna applicable for LTE and WLAN applications.

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Section: Introductionmentioning

confidence: 99%

Dual-Band Metamaterial Based on Jerusalem Cross Structure With Interdigital Technique for LTE and WLAN Systems

et al. 2020

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“…To expand the application scopes of the MAs, some approaches have been put forward to achieve multipleband and broadband absorption features. These suggested methods can be summarized into three categories: (a) Integrate a number of resonant structures with different sizes into a super-lattice coplanar structure [12][13][14];…”

Section: Introductionmentioning

confidence: 99%

Simultaneous realization of the single-band and broadband terahertz perfect absorber using one piece of metamaterial resonator

Wang

Tang

et al. 2020

SN Appl. Sci.

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A kind of terahertz metamaterial absorber, made of only an Au closed-ring resonator and a dielectric layer deposited on a continuous Au film, is presented to achieve bifunctional absorption characteristic. Unlike traditional absorbers having the single-functional absorption features of single-band or broadband, the designed device exhibits not only the single-band absorption response at frequency of 1.45 THz, but also a broadband absorption performance, which is caused by the superposition of three adjacent frequencies that are all localized at right side of the single-band absorption. Importantly, the relative absorption bandwidth of the broadband performance of the device over absorption rates of 50% and 80% can, respectively, reach 47.22% and 35.97%, which is very close to (and even exceed) the performance of previous single function of broadband absorbers that require several different lengths of metallic elements. The designed bifunctional absorber has the comprehensive advantages of the single functions of the single-band and broadband absorbers, and therefore, this work can offer an inspiring method to obtain a bifunctional absorber through using only one piece of metamaterial.

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“…Multiple-band metamaterial absorbers mean that they enable perfect absorption at several discrete frequency points. According to the number of frequency points [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28], the multiple-band absorption devices can be divided into dual-band absorption, triple-band absorption, quad-band absorption, and even more. In terms of design ideas, the principles of these multiple-band metamaterial absorbers are similar that they are resulted from the combined effect of the single resonance response of each metallic resonator.…”

Section: Introductionmentioning

confidence: 99%

“…In terms of implementation modes, the realization of the multiple-band metamaterial absorbers usually has two methods. One of which is the co-planar design method for placing multiple sub-resonators [9][10][11][12][13][14][15][16][17][18][19][20][21]. However, this type of design is at the expense of increasing the interaction of the subarrays (resulting in weak absorption strength) and expanding the unit size (resulting in large and non-compact structure size).…”

Section: Introductionmentioning

confidence: 99%

“…The performance of the multiple-band absorption shows a significant dependence on the gap sizes, number, as well as the gap position in the rectangular patch. Compared with the existing design technologies of realizing multiple-band absorption [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28], the multiple-band absorption device has some superior features, especially it does not increase the transverse and longitudinal dimensions of the basic cell, so it can effectively avoid the coupling effect of the sub-structures in the large-sized co-planar design method and can avoid the timeconsuming fabrication steps and complex structure faced in the layered design approach. Therefore, the multiple-band terahertz metamaterial absorber should have a wide range of application prospects in the terahertz technology related fields, including terahertz imaging, terahertz detection, terahertz sensing, etc.…”

Section: Introductionmentioning

confidence: 99%

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Multiple-Band Terahertz Metamaterial Absorber Using Multiple Separated Sections of Metallic Rectangular Patch

Wang

Lou

et al. 2020

Front. Phys.

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Multiple-band metamaterial absorbers have been widely reported using the co-planar or layered design methods. However, these obtained absorption devices are of complex structure, large unit size, heavy weight, and time-consuming construction steps. Herein, an alternative design strategy is suggested to realize the multiple-band absorption at terahertz frequency. By introducing air gaps into the rectangular metallic patch, the original rectangular resonator can be divided into multiple sub-structures (or separated sections), and the combined effect of the localized resonance response of these sub-structures (or separated sections) gives rise to the multiple-band absorption. More importantly, the size, position and number of air gaps play the important roles in controlling the resonance performance of the absorption peaks and even in regulating the amount of the absorption peaks. Compared with the existing multiple-band absorption design strategies, the proposed approach does not increase the unit size, nor need to stack multiple layers, which provides important guidance for the design of multiple-band terahertz metamaterial absorbers with simple, compact, and easy to fabricate for full details.

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Microwave Jerusalem cross absorber by metamaterial split ring resonator load to obtain polarization independence with triple band application

Cited by 76 publications

References 35 publications

Dual-Band Metamaterial Based on Jerusalem Cross Structure With Interdigital Technique for LTE and WLAN Systems

Dual-Band Metamaterial Based on Jerusalem Cross Structure With Interdigital Technique for LTE and WLAN Systems

Simultaneous realization of the single-band and broadband terahertz perfect absorber using one piece of metamaterial resonator

Multiple-Band Terahertz Metamaterial Absorber Using Multiple Separated Sections of Metallic Rectangular Patch

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