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

Kamonsin, W.; Krachodnok, P.; Chomtong, P.; Akkaraekthalin, Prayoot

doi:10.1109/access.2020.2968563

Cited by 19 publications

(8 citation statements)

References 22 publications

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“…Nowadays, people are more and more enthusiastic about the research of wireless body area network (WBAN), which has been further developed in the related fields of communication, health monitoring and emergency rescue services 1–5 . Currently, as an important part of WBAN, the wireless local area network (WLAN) band working at 5.15–5.825 GHz has also become a hot research topic 6–9 . The wearable devices need to be light, low‐profile and most of them need to be integrated with clothing.…”

Section: Introductionmentioning

confidence: 99%

“…15-5.825 GHz has also become a hot research topic. [6][7][8][9] The wearable devices need to be light, low-profile and most of them need to be integrated with clothing. Therefore, as wearable antennas, more factors should be considered than ordinary antennas in the initial design, 10 such as size miniaturization [11][12] and the wearing comfort.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of a wide bandwidth and high gain wearable antenna based on nonuniform metasurface

Gao

Meng

Geng

et al. 2021

Micro & Optical Tech Letters

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A metasurface (MS) antenna for the 5 GHz wireless local area network (WLAN) band is presented in this paper. The antenna is feed by a modified aperture‐coupled structure with an optimized rectangular nonuniform MS to widen the bandwidth and improve the gain. The proposed antenna has a thickness of 4 mm and occupies an area of 50 mm × 50 mm. The operating frequency range of the antenna is 4.72–6.19 GHz, covering the 5.15–5.825 GHz band used by the 5 GHz WLAN. The measured average gain is 7.23 dBi. The simulated specific absorption rate values under 1 g and 10 g standard are lower than the limitation of U.S. and European. Due to its simple structure, wide bandwidth and small size, the proposed MS antenna has great potential in the wearable applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of a wide bandwidth and high gain wearable antenna based on nonuniform metasurface

Gao

Meng

Geng

et al. 2021

Micro & Optical Tech Letters

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“…These merits can be obtained by developing multi-band metamaterialbased devices. Different dual-band designs have been proposed in the literature for various applications [76]− [78]. The EIT metamaterials with dual-band and low loss properties at microwave regime were reported in [74].…”

Section: Figure 2 the Inherent Losses In Metamaterials [23]mentioning

confidence: 99%

Overview of Approaches for Compensating Inherent Metamaterials Losses

et al. 2022

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Metamaterials are synthetic composite structures with extraordinary electromagnetic properties not readily accessible in ordinary materials. These media attracted massive attention due to their exotic characteristics. However, several issues have been encountered, such as the narrow bandwidth and inherent losses that restrict the spectrum and the variety of their applications. The losses have become the principal limiting factor when employing metamaterials in real-world applications. Consequently, overcoming them is crucially important and of practical necessity. This paper discusses the practical applications of metamaterials in constructing functional devices and the effects of the losses on such devices. In more depth, it reviews the available approaches for reducing the metamaterial losses developed over the last two decades in the light of available literature. These approaches include the utilization of the principles of electromagnetically induced transparency (EIT), geometric tailoring of the metamaterial structures, and embedding gain materials. Further, computational optimization techniques, such as particle swarm optimization (PSO) and genetic algorithm (GA), are also discussed to design low-loss metamaterials. The EIT-like metamaterial and the including of gain materials are systematic and universal approaches exhibiting low loss approaching zero. In contrast, the other two are not systematic and universal approaches.

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“…According to the desired multi-band operations, multiband metamaterials have been studied [3], [4]. A multi-band metamaterial reflector for dipole antennas has recently been designing [5], resulting in efficiency and gain improvement. Another method for increasing the antenna efficiency is to use an electromagnetic bandgap (EBG) structure [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A Multiband FSS Director Using Aperture Interdigital Structure for Wireless Communication Systems

et al. 2022

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This research paper proposes a multi-band frequency selective surface (FSS) director using the aperture interdigital technique. The FSS unit cell has been designed based on a basic bandpass filter (BPF) connected with an interdigital structure. With the proposed structure, the FSS unit cell size can be reduced from λ/2 to λ/8 caused by the slow-wave effect of interdigital capacitance loaded at the end of the transmission line in the unit cell structure. Moreover, the capacitance loaded at the end of the transmission line can control the second and the third resonance frequencies to resonate as required. The unit cell has been designed at the fundamental frequency of 1.8 GHz and the controlled second and third resonance frequencies of 3.7 GHz and 5.2 GHz, respectively. The operating frequencies of the proposed FSS unit cell cover LTE band (0-1.9 GHz), Wi-MAX band (3.22GHz-4.7GHz), and WLAN band (5.15 GHz-5.95 GHz). The size of the unit cell is very compact which is 11.53 mm × 10.77 mm. The designed unit cells are then connected as an array of 8×8, resulting in an overall size of 92.31 mm × 86.16 mm. This array has been used as a director for dipole antennas designed at the frequencies of 1.8 GHz, 2.45 GHz, 3.7 GHz, and 5.2 GHz. From the simulation, the dipole antennas with the proposed FSS director have directional gains of 4.52 dB at 1.8 GHz, 3.83 dB at 3.7 GHz, and 3.29 dB at 5.2 GHz, respectively. Measurement results show the directional gains of 3.67 dB at 1.8 GHz, 3.16 at 3.7 GHz, and 3.42 dB at 5.2 GHz, respectively. The proposed FSS director has properties of multi-band operation with a compact size that can be developed for antenna covers and radomes of multi-band wireless communications.

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

Cited by 19 publications

References 22 publications

Design of a wide bandwidth and high gain wearable antenna based on nonuniform metasurface

Design of a wide bandwidth and high gain wearable antenna based on nonuniform metasurface

Overview of Approaches for Compensating Inherent Metamaterials Losses

A Multiband FSS Director Using Aperture Interdigital Structure for Wireless Communication Systems

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