Characteristics of Cavity Slot Antenna for Body-Area Networks

Haga, Norihiro; Saito, Kazuyuki; Takahashi, Masaharu; Ito, Koichi

doi:10.1109/tap.2009.2014577

Cited by 127 publications

(55 citation statements)

References 15 publications

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“…What's more, to detect the transmitted signal independent of transmitter a position, the antenna is required the omni-directional radiation pattern (Kim & Rahmat-Samii, 2004;Chirwa et al, 2003). To investigate the characteristics of antennas for capsule endoscope, the human body is considered as an averaged homogeneous medium as described by the Federal Communications Commission (FCC) and measured using a human phantom (Kwak et al, 2005;Haga et al, 2009). …”

Section: Special Consideration Of Body Characteristics For Antenna Dementioning

confidence: 99%

Review of the Wireless Capsule Transmitting and Receiving Antennas

Wang¹,

Lim²,

Tillo³

et al. 2012

Wireless Communications and Networks - Recent Advances

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Section: Special Consideration Of Body Characteristics For Antenna Dementioning

confidence: 99%

Review of the Wireless Capsule Transmitting and Receiving Antennas

Wang¹,

Lim²,

Tillo³

et al. 2012

Wireless Communications and Networks - Recent Advances

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“…Wearable antennas are usually used in body centric communications [9][10][11][12], until recently. Although wearable antennas suffer performance distortion when applied to human body, this field is still widely explored by researchers.…”

Section: Introductionmentioning

confidence: 99%

Textile Artificial Magnetic Conductor Waveguide Jacket for on-Body Transmission Enhancement

Kamardin¹,

Rahim²,

Samsuri³

et al. 2013

PIER B

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Abstract-Diamond dipole antennas with textile Artificial Magnetic Conductor (AMC) sheet-like waveguide were designed to investigate the possibility of improving transmission between antennas. Fleece fabric is used as the substrate of the textile AMC while SHIELDIT fabric is used as the conductive patches and ground plane. The AMC surface is designed to resonate at 2.45 GHz with the goal to enhance the transmission between antennas. A small textile AMC waveguide sheet as well as an AMC waveguide jacket were fabricated. The S-parameters performance of the two antennas with textile AMC sheet was investigated in a free space environment and near to human body setting. The effect of different antennas' orientations was also considered. Measurements were conducted thoroughly to validate the simulated findings. Compared to free space environment, S 21 transmission between two dipoles is improved up to maximum −10 dB when having textile AMC waveguide sheet beneath them. For both off-body and on-body placements, significant transmission enhancement has been observed with the introduction of the AMC sheet-like waveguide. Directive radiation patterns with high gain have also been achieved with the proposed AMC waveguide jacket.

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“…In WBAN applications, antennas are required to have a compact size, flexibility, low human body effect and a low specific absorption ratio (SAR) [1]. The human body has a high dielectric constant with a high loss tangent and low conductivity at the microwave frequency band.…”

Section: Introductionmentioning

confidence: 99%

Design of a flexible diversity zeroth-order resonance antenna for WBAN applications

Lee

Kwon

et al. 2012

IEICE Electron. Express

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A flexible diversity antenna using zeroth-order resonance (ZOR) for WBAN applications is proposed to improve performance and overcome multipath fading. The dimension of the proposed diversity antenna, including the system ground, two antenna elements, and the decoupling network is 44 mm × 35 mm × 0.127 mm. When the antenna is located on a semi-solid flat phantom with equivalent electrical properties of a human body, the S 11 and S 22 values of the proposed antenna at 2.45 GHz are −22.8 dB and −25.4 dB, respectively. The measured specific absorption ratio (SAR) values of the antenna elements #1 and #2 are 0.54 W/kg and 0.75 W/kg (1 g tissue) and mean powers delivered from the two ports are almost identical since the proposed antenna has a measured ECC of 0.021 MEG ratio of 0.33 dB at 2.45 GHz.

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Characteristics of Cavity Slot Antenna for Body-Area Networks

Cited by 127 publications

References 15 publications

Review of the Wireless Capsule Transmitting and Receiving Antennas

Review of the Wireless Capsule Transmitting and Receiving Antennas

Textile Artificial Magnetic Conductor Waveguide Jacket for on-Body Transmission Enhancement

Design of a flexible diversity zeroth-order resonance antenna for WBAN applications

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