Stochastic Surrogate Models of Deformable Antennas Based on Vector Spherical Harmonics and Polynomial Chaos Expansions: Application to Textile Antennas

Du, Jinjuan; Roblin, Christophe

doi:10.1109/tap.2018.2829820

Cited by 60 publications

(19 citation statements)

References 29 publications

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“…This proposed implantable antenna is not having a direct feeding, But the antenna feeding is directly applied to the external interrogator antenna at 2.4GHz; the implanted dual antenna will be excited through the electromagnetic radiation from the interrogator at 2.4GHz [7] [10]. This received signal is combined with the biological signal of the body and return back to the external interrogator at 5.8GHz like a parasitic element [10] [11]. The internal nuropotential changes can be recorded by an outside recorder which is connected with the external interrogator.…”

Section: Antenna Design and Methodologymentioning

confidence: 99%

Dual Band Wearable Antenna for Medical Applications

Reji¹,

Manimegalai²

2019

IJRTE

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In the modern world many sensor devices are designed for medical and industrial applications. This idea is designing a dual band wearable antenna at 2.4GHz, 5.8GHz and investigating the wearability of antenna for medical applications. The test is carriedout in multiple tissue structure. These wearable antennas are very small in size, directly it can be worn in wrist or abdomen and inside the body. Different feeding structure will be compared to reduce the heating of antenna due to an electromagnetic interaction with bodies. This design has two dual antennas, one act like an interrogator and the next acts like a receiver. Interrogator is an outside device and the receiver antenna is connected within the human body. The proposed antenna is simulated by high frequency simulation software .The advantage of this antenna is very small and comfort for wearing in human bodies.

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Section: Antenna Design and Methodologymentioning

confidence: 99%

Dual Band Wearable Antenna for Medical Applications

Reji¹,

Manimegalai²

2019

IJRTE

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“…Compared with resonant frequency calculation equations in References and , it is clear that the newly introduced parallel bars inside the ICR add an extra capacitance C 0 that does not exist in neither square ring nor square patch. When the value of C 1 , C 2 , and L 2 are consistent, the extra capacitance C 0 will decrease the resonant frequency compared with the square patch and square ring shaped EBG.…”

Section: Antenna Designmentioning

confidence: 99%

“…To meet these requirements, the published antenna schemes usually employ various soft materials or special antenna structures that keep performance stable against various wearing conditions. References and References use denim and felt as their substrates, respectively. However, both denim and felt have low dielectric constants, which results in bulky volume and high profile.…”

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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“…It is assumed that the performance of textile antennas designed for off-body communications depend not only on ideal (flat surface, free-space) scenarios, but also body-proximity, bending conditions, diverse compression levels of the substrate [35], diverse crumpling shapes [78], and diverse humidity levels [55]. The antenna performance can vary significantly from that in free-space scenarios [7,37,43,44,46,51,52].…”

Section: Antenna Measurements Under Diverse Conditionsmentioning

confidence: 99%

Planar Textile Off-Body Communication Antennas: A Survey

2019

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Fully textile smart wearables will be the result of the complete integration and miniaturization of electronics and textile materials. Off-body communications are key for connecting smart wearables with external devices, even for wireless power transfer or energy harvesting. They need to fulfill specific electromagnetic (EM) (impedance bandwidth (BW), gain, efficiency, and front to back radiation (FTBR)) and mechanical (bending, crumpling, compression, washing and ironing) requirements so that the smart wearable device provides the required performance. Therefore, textile and flexible antennas require a proper trade-off between materials, antenna topologies, construction techniques, and EM and mechanical performances. This review shows the latest research works for textile and flexible planar, fully grounded antennas for off-body communications, providing a novel design guide that relates key antenna performance parameters versus topologies, feeding techniques, conductive and dielectric textile materials, as well as the behavior under diverse measurement conditions.

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Stochastic Surrogate Models of Deformable Antennas Based on Vector Spherical Harmonics and Polynomial Chaos Expansions: Application to Textile Antennas

Cited by 60 publications

References 29 publications

Dual Band Wearable Antenna for Medical Applications

Dual Band Wearable Antenna for Medical Applications

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

Planar Textile Off-Body Communication Antennas: A Survey

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