A Modular Textile Antenna Design Using Snap-on Buttons for Wearable Applications

Chen, Shengjian Jammy; Kaufmann, Thomas; Ranasinghe, Damith C.; Fumeaux, Christophe

doi:10.1109/tap.2016.2517673

Cited by 87 publications

(53 citation statements)

References 30 publications

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“…, 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%

“…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%

“…, 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.…”

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confidence: 99%

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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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“…, 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%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Circularly‐polarised cavity‐backed wearable antenna in SIW technology

Moro

Agneessens

Rogier

et al. 2017

IET Microwaves, Antennas & Propagation

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“…Speaking of the stable antenna structure against bending, the planar inverted‐F antenna (PIFA) is a robust alternative that is verified in References . Reference introduces an F‐shaped patch antenna as well as two PIFAs transformed from the patch antenna.…”

Section: Introductionmentioning

confidence: 98%

“…In Reference , a dual operating mode PIFA is simulated on a cylindrical phantom and measured on a user's forearm and body, respectively. Reference presents a modular textile PIFA using snap‐on buttons, and it uses an anthropomorphically shaped shell phantom which is called torso to simulate the impact of the human body. To sum up, PIFA is an effective approach to strongly reduce the antenna sensitivity to the impact of bending conditions and the human body.…”

Section: Introductionmentioning

confidence: 99%

Flexible EBG‐backed PIFA based on conductive textile and PDMS for wearable applications

Gao

Wang

Zhang

et al. 2019

Micro & Optical Tech Letters

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A wearable planar inverted‐F antenna (PIFA) fed by the coplanar waveguide (CPW) and backed with an optimized electromagnetic bandgap (EBG) structure is presented. The antenna is made of conductive textile and polydimethylsiloxane (PDMS), which is a conformal and robust solution to wearable applications. The EBG unit cell is miniaturized according to the equivalent circuit model, and the cross‐polarization is suppressed due to its approximate 180° reflection phase in the orthogonal direction. The measured impedance bandwidth ranges from 2.30 to 2.65 GHz, which covers the 2.4 GHz Industrial Scientific Medical (ISM) band. The antenna keeps a high gain and efficiency above 70% under different conditions including being flat, bent, and close to the human body. The maximum SAR value is limited to 0.612 and 0.330 W/kg under 1 and 10 g standard, respectively. Therefore, the antenna is a promising candidate for wearable applications in various domains.

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Smart Textile‐Integrated Microelectronic Systems for Wearable Applications

et al. 2019

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The programmable nature of smart textiles makes them an indispensable part of an emerging new technology field. Smart textile‐integrated microelectronic systems (STIMES), which combine microelectronics and technology such as artificial intelligence and augmented or virtual reality, have been intensively explored. A vast range of research activities have been reported. Many promising applications in healthcare, the internet of things (IoT), smart city management, robotics, etc., have been demonstrated around the world. A timely overview and comprehensive review of progress of this field in the last five years are provided. Several main aspects are covered: functional materials, major fabrication processes of smart textile components, functional devices, system architectures and heterogeneous integration, wearable applications in human and nonhuman‐related areas, and the safety and security of STIMES. The major types of textile‐integrated nonconventional functional devices are discussed in detail: sensors, actuators, displays, antennas, energy harvesters and their hybrids, batteries and supercapacitors, circuit boards, and memory devices.

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A Modular Textile Antenna Design Using Snap-on Buttons for Wearable Applications

Cited by 87 publications

References 30 publications

Circularly‐polarised cavity‐backed wearable antenna in SIW technology

Circularly‐polarised cavity‐backed wearable antenna in SIW technology

Flexible EBG‐backed PIFA based on conductive textile and PDMS for wearable applications

Smart Textile‐Integrated Microelectronic Systems for Wearable Applications

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