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Proceedings ArticleDOI

Dual band CPW fed wearable monopole antenna

11 Apr 2013-pp 1134-1137
TL;DR: In this paper, a compact Coplanar Waveguide fed (CPW) monopole antenna with dual-band operation suitable for radar application is investigated, which comprises the shape of a L-I-inverted L shape.
Abstract: There is an increasing interest in military domain for wearable antennas. This paper presents the development and computation of wearable antenna which are structured into clothing. A compact Coplanar Waveguide fed (CPW) monopole antenna with dual band operation suitable for radar application is investigated. The antenna comprises the shape of a L-I-inverted L shape. By selecting the dimensions optimally the antenna resonates at 1.31 GHz and 3.21 GHz with an impedance bandwidth of 30.24% and 13.39% respectively. The performance of the antenna such as antenna gain and radiation pattern over the operating band has also been obtained. The variation of the three parameters such as W1, G1, and G2 has also been studied. The antenna design is described and simulated results are presented and discussed.
Citations
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Journal ArticleDOI
TL;DR: In this article, a dual-band wearable antenna using split-ring resonator (SRR) is presented, which makes a major contribution to the first operating band (2.32 GHz) but it has a minor effect on the second operating bands (3.5 GHz).
Abstract: This paper presents dual-band wearable antenna using split-ring resonator (SRR). The SRR is placed near patch and feed line. SRR makes a major contribution to the first operating band (2.32 GHz), but it has a minor effect on the second operating band (3.5 GHz). The wearable antenna at 3.5 GHz (without using SRR) is also presented for comparison sake. The simulation results are analyzed and compared with the measured results, which shows that there is a good agreement between them.

10 citations


Cites background from "Dual band CPW fed wearable monopole..."

  • ...In [7], the antenna comprises the shape of L-I-inverted L shape for dual-band performance....

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Book ChapterDOI
01 Jan 2018
TL;DR: Research is revealed on different designs and development of wearable antennas for biomedical application at different frequency bands for wearable devices for monitoring different biological signals.
Abstract: Wearable devices for monitoring different biological signals are now gaining huge interest now a day. Use of textile material as substrate material for antenna design is growing rapidly. In order to reduce the effect of human body the performance of antenna several different antenna structures have been proposed. This article reveals research on different designs and development of wearable antennas for biomedical application at different frequency bands.

6 citations

Proceedings ArticleDOI
21 May 2015
TL;DR: In this paper, an on-body/wearable planar antenna is designed for medical devices, which operates in U-NII worldwide band having reflection coefficient bandwidth of 208 MHz with resonant frequency 5.50 GHz.
Abstract: An on-body/wearable planar antenna is designed for medical devices. The antenna operates in U-NII worldwide band having reflection coefficient bandwidth of 208 MHz with resonant frequency 5.50 GHz. Geometrical parameters of the antenna are optimized using parametric analysis in CST microwave studio. The antenna has very high gain of 8.79 dB and highly stable gain pattern within the operating band with a gain variation of ≤ 0.286 dB. The estimated SAR value of this antenna is much lower than the FCC specified limit and is ≤ 0.363 mW/g. Power absorbed by the human body is nearly constant in the antenna operating band with a SAR variation of 0.035 mW/g. Antenna performance parameters are independent on the spacing between the antenna and the human body implies highly stable radiation characteristics.

3 citations

Proceedings ArticleDOI
15 May 2022
TL;DR: In this article , a wideband wearable antenna is proposed for 5G and IoT applications, which is a circularly polarized coplanar waveguide antenna with a compact size (16mm x 21.5mm).
Abstract: In this study, a wideband wearable antenna is proposed for 5G and IoT applications. The presented circularly polarized coplanar waveguide antenna has a compact size (16mm x 21.5mm). The other result of the novel design which makes this antenna one of the best choices for wearable applications is its low SAR values. These values are 0.0846 and 0.0497 W/kg for mass densities of 1g and 10g, respectively.

2 citations

Proceedings ArticleDOI
15 May 2022
TL;DR: In this paper , a wideband wearable antenna is proposed for 5G and IoT applications, which is a circularly polarized coplanar waveguide antenna with a compact size (16mm x 21.5mm).
Abstract: In this study, a wideband wearable antenna is proposed for 5G and IoT applications. The presented circularly polarized coplanar waveguide antenna has a compact size (16mm x 21.5mm). The other result of the novel design which makes this antenna one of the best choices for wearable applications is its low SAR values. These values are 0.0846 and 0.0497 W/kg for mass densities of 1g and 10g, respectively.

2 citations

References
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Journal ArticleDOI
01 Jul 1984

5,335 citations

Journal ArticleDOI
TL;DR: In this paper, a small printed antenna with a reduced groundplane effect for ultrawideband (UWB) applications is described, where a notch is cut from the radiator while a strip is asymmetrically attached to the radiator.
Abstract: A small printed antenna is described with a reduced ground-plane effect for ultrawideband (UWB) applications. The radiator and ground plane of the antenna are etched onto a piece of printed circuit board (PCB) with an overall size of 25mmtimes25 mmtimes1.5 mm. A notch is cut from the radiator while a strip is asymmetrically attached to the radiator. The simulation and measurement show that the miniaturized antenna achieves a broad operating bandwidth of 2.9-11.6 GHz for a 10-dB return loss. In particular, the ground-plane effect on impedance performance is greatly reduced by cutting the notch from the radiator because the electric currents on the ground plane are significantly suppressed at the lower edge operating frequencies. The antenna features three-dimensional omni-directional radiation with high radiation efficiency of 79%-95% across the UWB bandwidth. In addition, a parametric study of the geometric and electric parameters of the proposed antenna will be able to provide antenna engineers with more design information

420 citations


"Dual band CPW fed wearable monopole..." refers background in this paper

  • ...The geometry of ground plane affects the impedance matching as well [6]....

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Journal ArticleDOI
TL;DR: In this article, a triple-frequency microstrip-fed planar monopole antenna for multiband operation is proposed and investigated, which has a small overall size of 20 × 30 mm2, and operates over the frequency ranges 2.14-2.52 GHz, 2.82-3.74 GHz, and 5.15-6.02 GHz suitable for WLAN 2.4/5.8 GHz and WiMAX 3.5/5 GHz applications.
Abstract: A novel triple-frequency microstrip-fed planar monopole antenna for multiband operation is proposed and investigated. Defected ground structure (DGS) is used in this antenna, which has a rectangular patch with dual inverted L-shaped strips and is fed by a cross-shaped stripline, for achieving additional resonances and bandwidth enhancements. The designed antenna has a small overall size of 20 × 30 mm2, and operates over the frequency ranges, 2.14-2.52 GHz, 2.82-3.74 GHz, and 5.15-6.02 GHz suitable for WLAN 2.4/5.2/5.8 GHz and WiMAX 3.5/5.5 GHz applications. There is good agreement between the measured and simulated results. Experimental results show that the antenna gives monopole-like radiation patterns and good antenna gains over the operating bands. In addition, effects of both the length of the protrudent strips and the dimensions of the DGS for this design on the electromagnetic performance are examined and discussed in detail.

270 citations


"Dual band CPW fed wearable monopole..." refers background in this paper

  • ...Monopole planar Antennas are considered to be the best choice for multiband application due to their specific properties such as low cost, light weight, simple fabrication, and compatibility with integrated circuits, compact size, and adaptable configuration for existing broad impedance bandwidth, dual or multi-frequency mode and agreeable radiation characteristics [7] ....

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Journal ArticleDOI
TL;DR: In this paper, a dual-frequency strip-sleeve monopole antenna for use on a laptop computer is described, which operates simultaneously in the AMPS and PCS bands with return-loss less than -95 dB.
Abstract: A novel dual-frequency strip-sleeve monopole antenna for use on a laptop computer is described The antenna operates simultaneously in the 0824-0894 GHz and 185-199 GHz bands of the AMPS and the PCS systems with return-loss less than -95 dB Effects of several antenna and computer parameters on the input impedance, radiation pattern, and directivity are given The parameters considered include an angle between the keyboard and the screen, dielectric materials of the keyboard and the screen, number of parasitic antenna sleeves, and the dielectric covering the antenna

81 citations

Journal ArticleDOI
TL;DR: In this paper, an antenna structure based on the geometry of a bent folded monopole antenna capable of dual resonance frequencies operation is discussed, which is able to cover the GSM/DCS 1800 communication system bands.
Abstract: With the introduction of DCS1800 to meet the demands for a wider frequency spectrum for mobile communication systems, novel antenna structures capable of generating dual resonance are in demand. An antenna structure based on the geometry of a bent folded monopole antenna capable of dual resonance frequencies operation is discussed. This antenna is able to cover the GSM/DCS 1800 communication system bands.

62 citations


"Dual band CPW fed wearable monopole..." refers methods in this paper

  • ...There are several design of dual frequency monopole Antenna, including use of centre fed monopole surrounded by multiple parasitic monopole [2] or sleeves [3], a multiband monopole [4] and a bent folded monopole [5]....

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