A Textile Antenna for Off-Body Communication Integrated Into Protective Clothing for Firefighters

Hertleer, Carla; Rogier, Hendrik; Vallozzi, Luigi; Langenhove, Lieva Van

doi:10.1109/tap.2009.2014574

Cited by 374 publications

(258 citation statements)

References 9 publications

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“…The use of textile materials as the substrate for microwave components and systems appears a very promising feature that guarantees great advantages in the realization of wearable systems for wireless communication. This growing interest has led to the implementation of several antenna topologies, including patch antennas [3], [4] and printed dipoles [5], [6], with the aim of increasing the antenna efficiency and reducing its size. Moreover, textile antennas using snap-on buttons were recently proposed [7].…”

Section: Introductionmentioning

confidence: 99%

Circularly‐polarised cavity‐backed wearable antenna in SIW technology

Moro

Agneessens

Rogier

et al. 2017

IET Microwaves, Antennas & Propagation

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This paper presents a circularly-polarized substrate integrated waveguide (SIW) antenna implemented in a textile substrate and operating at 2.45 GHz, in the industrial, scientific, and medical (ISM) frequency band. The antenna topology is based on a folded cavity with an annular ring as radiating element, and it permits to obtain compact size and low sensitivity to the environment, without deteriorating the radiating performance. These characteristics, together with the choice of adopting a textile substrate, make the SIW antenna suitable for the integration in wearable systems for body-centric applications. The electromagnetic performance of the proposed antenna achieved in simulations were verified through the measurement of the device in an anechoic chamber. The circularly-polarized antenna exhibits a maximum gain of 6.5 dBi, a radiation efficiency of 73% and a very high front-to-back ratio. IntroductionThe implementation of wireless systems for bodycentric communication has become a hot research topic in the last few years [1], [2]. The use of textile materials as the substrate for microwave components and systems appears a very promising feature that guarantees great advantages in the realization of wearable systems for wireless communication. , with the aim of increasing the antenna efficiency and reducing its size. Moreover, textile antennas using snap-on buttons were recently proposed [7].A very promising approach for the implementation of components and antennas on textile is the substrate-integrated waveguide (SIW) technology [8]. SIW technology permits to integrate active components, passive elements and antennas in a single substrate. Moreover, these components may be implemented in a multilayer structure, thus reducing the size of the devices and the losses of the systems [8], [9]. These characteristics make SIW technology suitable for several applications: it can be applied in the design of many different systems for wireless area networks, mobile communication, short and medium range communication. In most of them, circular polarization is desired to improve the communication channel and the efficiency of the system. In fact, conformal SIW structures can be easily fabricated by adopting a standard fabrication process that maintains the typical flexibility of textile substrate. Moreover, the SIW circuits are completely shielded: this feature is essential for wearable applications since the interaction between microwave components and the human body must be as low as possible.The realization of the first cavity-backed SIW antenna on textile [10] demonstrated the advantages of the combination of SIW technology with textile materials. Several alternative textile antenna topologies were proposed in the last few years, aiming at the reduction of the antenna footprint. They include single band [11]

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Section: Introductionmentioning

confidence: 99%

Circularly‐polarised cavity‐backed wearable antenna in SIW technology

Moro

Agneessens

Rogier

et al. 2017

IET Microwaves, Antennas & Propagation

Self Cite

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“…The presence of the chest has not altered the S-parameter significantly. It is because that the ground plane serves as a shield against the power radiated by the antenna [2]. Secondly, as multi-button antennas may be mounted on the clothing surface, the effects of the body on S 21 between two identical button antennas should also be studied.…”

Section: The Effect Of the Human Bodymentioning

confidence: 99%

“…Textile antenna is able to be integrated into clothing, which is usually unobtrusive and offers large area. A variety of textile antennas have been introduced in recent years [2][3][4]. In low/medium data-rate applications, the low-power operation and extremely low radiated power that can be offered by UWB [5][6][7][8][9][10][11][12] are very attractive for BWCS [13].…”

Section: Introductionmentioning

confidence: 99%

A Novel Compact Uwb Textile Button Antenna

Yu¹,

Liu²,

Jiang³

et al. 2012

PIER C

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Abstract-A novel compact textile antenna with the appearance of a button on clothing for body-centric wireless communications systems (BWCS) is presented. The antenna is placed on a textile substrate and fed by a coaxial line through the ground plane. The operating bandwidth of the antenna has met the requirement of the UWB communication system. The effects of the human body on S 11 and S 21 are presented and discussed in detail. The proposed antenna has good omni-directional radiation patterns and stable H-plane radiation patterns. The measured results show that the antenna is suitable for BWCS.

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“…Some remarkable low-profile, flexible and conformal to the body textile antenna designs have been proposed in the literature [1][2][3][4][5][6][7][8][9]. According to Hall [10], it has been proven that antennas with normal to human body polarisation generate a strong surface wave propagation mode that is practical for on-body communication.…”

Section: Introductionmentioning

confidence: 99%

Higher‐mode textile patch antenna with embroidered vias for on‐body communication

Paraskevopoulos

Fonseca

Seager

et al. 2016

IET Microwaves, Antennas & Propagation

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This study presents a wearable textile higher‐mode microstrip patch antenna (HMMPA) that has been designed to radiate omni‐directionally at 2.4 GHz Industrial Scientific and Medical (ISM) band. Emphasis is given to the fabrication process of the textile vias with conductive sewing thread that plays an important role in generating the optimal mode for on‐body radiation. The embroidery technique enabled a side‐fed low‐profile antenna which could be placed directly against the body. The proposed textile HMMPA antenna performance is compared with a probe‐fed HMMPA antenna fabricated with rigid copper radiating parts, for both free space and on‐body conditions. The on‐body antenna performance has been tested by performing near‐field measurements of the antenna on a full‐body specific anthropomorphic mannequin phantom in an anechoic chamber. Results show that the proposed textile HMMPA antenna with vias made from conductive thread can radiate on‐body with good efficiency while minimising the radiation in the broadside direction.

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A Textile Antenna for Off-Body Communication Integrated Into Protective Clothing for Firefighters

Cited by 374 publications

References 9 publications

Circularly‐polarised cavity‐backed wearable antenna in SIW technology

Circularly‐polarised cavity‐backed wearable antenna in SIW technology

A Novel Compact Uwb Textile Button Antenna

Higher‐mode textile patch antenna with embroidered vias for on‐body communication

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