High isolation transmitter and receiver antennas using high-impedance surfaces for repeater applications

Kang, Hyung-Won; Lim, Sungjoon

doi:10.1080/09205071.2013.832395

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…As illustrated in Figure 13a, one kind of the decoupling structure acts as a band-stop filter, which can block the coupling wave at the operation bandwidth. Examples based on this mechanism include defected ground structure (DGS) [72], wave trap structure (WTS) [73,74], high impedance surface (HIS) [75,76], frequency selective surface (FSS) [77,78], electromagnetic band gap (EBG) [79,80] and so on. The other kind of decoupling structures like resonant baffles [81,82], antenna decoupling surface (ADS) [83] and neutralization line (NL) [84,85] can introduce an additional coupling path whose phase is set opposite to the original coupling path, thus the coupling of two paths cancels out, as shown in Figure 13b.…”

Section: Decoupling Structurementioning

confidence: 99%

Antenna/Propagation Domain Self-Interference Cancellation (SIC) for In-Band Full-Duplex Wireless Communication Systems

Chen

Ding

Jia

et al. 2022

Sensors

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In-band full duplex (IBFD) is regarded as one of the most significant technologies for addressing the issue of spectrum scarcity in 5G and beyond systems. In the realization of practical IBFD systems, self-interference, i.e., the interference that the transmitter causes to the collocated receiver, poses a major challenge to antenna designers; it is a prerequisite for applying other self-interference cancellation (SIC) techniques in the analog and digital domains. In this paper, a comprehensive survey on SIC techniques in the antenna/propagation (AP) domain is provided and the pros and cons of each technique are studied. Opportunities and challenges of employing IBFD antennas in future wireless communications networks are discussed.

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Section: Decoupling Structurementioning

confidence: 99%

Antenna/Propagation Domain Self-Interference Cancellation (SIC) for In-Band Full-Duplex Wireless Communication Systems

Chen

Ding

Jia

et al. 2022

Sensors

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“…The permeability and permittivity of metamaterials can be manipulated by using conductive patterns. Metamaterials have been studied for use in various applications such as antennas [ 2 ], sensors [ 3 ], and perfect absorbers [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. A metamaterial absorber uses an array of unit cells, typically consisting of a top pattern and a bottom ground plane.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, metamaterial absorbers have been used as plasmonic sensors [ 11 , 12 ] and bolometers [ 13 ]. Many recent studies examined flexible and stretchable metamaterial absorbers [ 14 , 15 , 16 ]. In addition, the frequency tunability of metamaterial absorbers can be used for sensor applications [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Stretchable Metamaterial Absorber Using Liquid Metal-Filled Polydimethylsiloxane (PDMS)

Kim

Lee

Eom

et al. 2016

Sensors

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A stretchable metamaterial absorber is proposed in this study. The stretchability was achieved by liquid metal and polydimethylsiloxane (PDMS). To inject liquid metal, microfluidic channels were fabricated using PDMS powers and microfluidic-channel frames, which were built using a three-dimensional printer. A top conductive pattern and ground plane were designed after considering the easy injection of liquid metal. The proposed metamaterial absorber comprises three layers of PDMS substrate. The top layer is for the top conductive pattern, and the bottom layer is for the meandered ground plane. Flat PDMS layers were inserted between the top and bottom PDMS layers. The measured absorptivity of the fabricated absorber was 97.8% at 18.5 GHz, and the absorption frequency increased from 18.5 to 18.65 GHz as the absorber was stretched from its original length (5.2 cm) to 6.4 cm.

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“…Recently, various metamaterial absorbers have been researched for narrowband [1], [2], broadband [3], [4], polarization insensitivity [4], [5], wide angle [5], and active characteristics [6], [7] in microwave [1]- [6], terahertz [7], [8], infrared [9], [10], and optical regions [11]. In addition, metamaterial absorbers have been applied in diverse areas such as bolometer [12], electromagnetic interference (EMI) [13], plasmonic sensor [10], and stealth technology [14]. Taking the characteristics of practical environments into consideration, many researchers have also investigated flexible metamaterial absorbers for curved as well as flat surfaces [14], [15].…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticle-Based Inkjet-Printed Metamaterial Absorber on Flexible Paper

Yoo

Kim

et al. 2015

Antennas Wirel. Propag. Lett.

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In this paper, a novel, flexible inkjet-printed metamaterial absorber is proposed. The unit cell consists of a miniaturized Jerusalem-cross resonator and a completely conductive bottom. Because the conductive patterns are inkjet-printed using silver nanoparticle inks on paper, the proposed metamaterial absorber is flexible. It is also eco-friendly because it does not produce any chemical waste. In this paper, the working principle of the proposed miniaturized unit cell is explained, and parametric simulations are described. The inkjet-printing process is delineated, and the silver nanoparticle inks and paper used are characterized. The performance of the proposed absorber is demonstrated with a full-wave simulation and measurements at the X-band. The experimental results show that the absorption rate at 9.09 GHz is greater than 99% at the normal incidence. Angular and polarization insensitivity are also experimentally demonstrated.

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High isolation transmitter and receiver antennas using high-impedance surfaces for repeater applications

Cited by 11 publications

References 9 publications

Antenna/Propagation Domain Self-Interference Cancellation (SIC) for In-Band Full-Duplex Wireless Communication Systems

Antenna/Propagation Domain Self-Interference Cancellation (SIC) for In-Band Full-Duplex Wireless Communication Systems

Stretchable Metamaterial Absorber Using Liquid Metal-Filled Polydimethylsiloxane (PDMS)

Silver Nanoparticle-Based Inkjet-Printed Metamaterial Absorber on Flexible Paper

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