Independent polarization and multi-band THz absorber base on Jerusalem cross

Arezoomand, Afsaneh Saee; Zarrabi, Ferdows B.; Heydari, Samaneh; Gandji, Navid P.

doi:10.1016/j.optcom.2015.05.003

Cited by 76 publications

(24 citation statements)

References 27 publications

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“…Inductance and capacitance developed on EBG are drawn in Figure 4(a) based on [11]. Parameter values are shown in Table 2 for the final stage.…”

Section: Circuit Analysis Of Unit Cell Of Proposed Ebgmentioning

confidence: 99%

“…Correlation coefficient vs Frequency plot in Figure 10 shows reduced coupling of the MIMO antenna system with the proposed EBG structure. Fabricated prototypes of the MIMO antenna systems with and without E-SMLUC-EBGare are shown in Figure 11, and their measured values for S 11 and S 21 are plotted in Figure 12. It is clear from Figure 13 show that application of EBG in MIMO antenna to reduce mutual coupling does not affect the radiation pattern of MIMO without EBG.…”

Section: Implementation Of E-smluc-ebg In Mutual Coupling Reduction Omentioning

confidence: 99%

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Mimo Antenna Mutual Coupling Reduction for Wlan Using Spiro Meander Line Uc-Ebg

Kumar¹,

Kommuri²

2018

PIER C

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Abstract-This paper presents designs of novel E-plane spiro meander line uniplanar compact electromagnetic bandgap (E-SMLUC-EBG) and H-plane spiro meander line uniplanar compact electromagnetic bandgap (H-SMLUC-EBG) structures. The proposed EBG has been applied in mutual coupling reduction of a dual-element multiple input multiple output (MIMO) antenna system for WLAN by placing an EBG structure between the radiating antennas. Compact size of EBG helps in reducing the edge to edge distance between antennas which is 0.14λ 0 in this case, and it increases the compactness of integrated circuit. It gives 19 dB and 11 dB simulated mutual coupling reduction in E-plane and Hplane respectively at 5.8 GHz. Measured isolation improvement of 20.3 dB for E-plane and 14.7 dB for H-plane has been achieved. This coupling reduction is also confirmed by surface current and correlation coefficient plots. The four-element (2 × 2) MIMO antenna system with proposed EBG is also simulated.

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“…Inductance and capacitance developed on EBG are drawn in Figure 4(a) based on [11]. Parameter values are shown in Table 2 for the final stage.…”

Section: Circuit Analysis Of Unit Cell Of Proposed Ebgmentioning

confidence: 99%

Section: Implementation Of E-smluc-ebg In Mutual Coupling Reduction Omentioning

confidence: 99%

Mimo Antenna Mutual Coupling Reduction for Wlan Using Spiro Meander Line Uc-Ebg

Kumar¹,

Kommuri²

2018

PIER C

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“…Compared to the previously reported MAs, the MA proposed in this paper has several advantages. Firstly, compared to complex resonance structures with multiple absorption peaks, such as all-in-one packed super-unit cell [27,28] and stacked layers [29], the proposed absorber has only one patterned resonant structure, which meets current demands on miniaturization and simplification. Secondly, the multiple absorption peaks can be dynamically tuned by changing of polarization angles of the incident wave.…”

Section: Introductionmentioning

confidence: 99%

A Polarization-Dependent Frequency-Selective Metamaterial Absorber with Multiple Absorption Peaks

et al. 2017

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Abstract:A polarization-dependent, frequency-selective metamaterial (MM) absorber based on a single-layer patterned resonant structure intended for F frequency band is proposed. The design, fabrication, and measurement for the proposed absorber are presented. The absorber's absorption properties at resonant frequencies have unique characteristics of a single-band, dual-band, or triple-band absorption for different polarization of the incident wave. The calculated surface current distributions and power loss distribution provide further understanding of physical mechanism of resonance absorption. Moreover, a high absorption for a wide range of TE-polarized oblique incidence was achieved. Hence, the MM structure realized on a highly flexible polyimide film, makingthe absorber suitable for conformal geometry applications. The proposed absorber has great potential in the development of polarization detectors and polarizers.

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“…Self-similar antennas are multi-resonant and relatively small. Multiband characteristics are associated with self-similarity of the geometry [7,8]. Bow-tie dipole antenna with Koch fractal shape is designed for multi-band and miniaturization [8].…”

Section: Introductionmentioning

confidence: 99%

“…The Jerusalem cross (JC) is a famous model of fractal shape used in many researches for making absorber or metamaterial radome for antenna gain and bandwidth enhancement [7,10]. In addition, the slot antenna has been studied to achieve circular polarization with a change in slot feeds and parasitic elements in some researches [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Circular Polarization Fractal Slot by Jerusalem Cross Slot for Wireless Applications

Heydari¹,

Jahangiri²,

Arezoomand³

et al. 2016

PIER Letters

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Abstract-In this letter, a new model of antenna with Jerusalem crosses (JC) as fractal slots for circular polarization applications is designed. The proposed slot antenna has a fractal cross formation with four Jerusalem crosses (JC) to achieve wide bandwidth and a compact size as well as circular polarization. A T-shaped feed line is implemented in the proposed antenna for improving the bandwidth while the interaction of the feed line with cross-shaped slots makes circular polarization. The proposed antenna shows bi-directional pattern and bandwidth at 2.42-3.0 GHz with VSWR < 2, which can be used in WiFi and Bluetooth applications with a gain of 3.5 dBi. The proposed fractal antenna size is 40 × 40 mm, and it is designed and fabricated on an FR-4 low-cost substrate with thickness of 1.6 mm. It is simulated by HFSS full wave software. In addition, the experimental results are presented and compared with the simulation for VSWR, radiation pattern and axial ratio.

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Independent polarization and multi-band THz absorber base on Jerusalem cross

Cited by 76 publications

References 27 publications

Mimo Antenna Mutual Coupling Reduction for Wlan Using Spiro Meander Line Uc-Ebg

Mimo Antenna Mutual Coupling Reduction for Wlan Using Spiro Meander Line Uc-Ebg

A Polarization-Dependent Frequency-Selective Metamaterial Absorber with Multiple Absorption Peaks

Circular Polarization Fractal Slot by Jerusalem Cross Slot for Wireless Applications

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