A Wideband Metasurface Antenna With Dual-Band Dual-Mode for Body-Centric Communications

Gao, Guoping; Meng, Huijia; Geng, Wenfei; Dou, Zhi‐Heng; Zhang, Benkai; Hu, Bin

doi:10.1109/lawp.2021.3121585

Cited by 23 publications

(7 citation statements)

References 37 publications

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Section: Dual-band Linearly Polarized Antennamentioning

confidence: 99%

“…To enhance the functionality of the metasurface, that is, to reduce the backward radiation also for dual band frequency generation, the authors of [60] and [6] have proposed dual mode metasurfaces. In [60], the metasurface was operated in TM 11 mode at 2.45 GHz and TM 02 mode at 5 GHz. The TM 11 mode generated broadside radiation patterns which could be used in OFF-body communication, whereas the TM 02 mode generated omnidirectional radiation patterns which could be used in ON-body communication.…”

Section: Dual-band Linearly Polarized Antennamentioning

confidence: 99%

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A Review of the Advancement of Metasurfaces in Wearable Antenna Design For OFF-body Communications

Sahu,

Naik,

Tripathy

et al. 2024

PIER B

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This review article explores the advancement of metasurfaces in wearable antenna design for off-body communications. The wearable antenna needs to be compact, flexible, and, most importantly, should have less back radiation. In this context, wearable antennas that are inspired by metasurfaces are a good choice. Metasurface can make the antenna compact and reduce the back-radiated waves, which lowers the specific absorption rate (SAR) and improves the antenna's performance. In addition, the metasurface can also generate circular polarization (CP) by carefully rotating the electromagnetic (EM) waves incident on it and multi-band by simultaneously exciting its multiple modes. Using the aforementioned features provided by the metasurface, the surveys are segregated as single-band with linear polarizations (LP), single-band with CP, dual-band with LP, dual-band with dual polarization, and dual-band with dual CP. Prior to the survey, the challenges and considerations for wearable antenna design as well as the theoretical perspective behind performance improvements are discussed. Also, a conventional unit-cell of the metasurface is theoretically designed using the discussed theories and validated using CST Microwave Studio, which shows good agreement with each other.

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Section: Dual-band Linearly Polarized Antennamentioning

confidence: 99%

Section: Dual-band Linearly Polarized Antennamentioning

confidence: 99%

A Review of the Advancement of Metasurfaces in Wearable Antenna Design For OFF-body Communications

Sahu,

Naik,

Tripathy

et al. 2024

PIER B

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“…As an important transceiver in satellite communication and navigational positioning, circularly polarized antenna has always attracted high attention in the field of wireless communication, and then the application of circularly polarized antenna to wearable devices 1,2 has become a hot spot in the field of smart devices. At present, there are two methods to generate circular polarization by microstrip patch antenna 3 …”

Section: Introductionmentioning

confidence: 99%

A dual‐band dual‐polarized omnidirectional patch antenna for on‐body application

Gao,

Wang,

et al. 2024

Micro & Optical Tech Letters

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Aiming at the 3.5 GHz world interoperability for microwave access band and 5.8 GHz industrial scientific medical band, a dual‐band antenna operating in omnidirectional mode is proposed. The antenna uses a single‐layer dielectric substrate made of FR‐4, which is cheap and easy to process. It uses circular patches and metal branches to generate orthogonal electric fields to achieve circular polarization. At the same time, the upper patch is symmetrically slotted in a T shape, so that the patch produces two resonance frequencies. The measured impedance bandwidth of the antenna in circular polarization on‐body mode and linear polarization on‐body mode is 110 MHz (3.41–3.52 GHz) and 460 MHz (5.42–5.88 GHz), respectively. In addition, the antenna shows good performance under bending conditions and close to human tissue. At the same time, the low specific absorption rate value proves that the antenna is safe to wear on the human body.

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“…The circular patch antenna can realise omnidirectional radiation by stimulating TM 01 mode, TM 02 mode, and zerothorder mode [19][20][21]. However, the gains of antennas using these modes for on-body mode are low, which easily leads to weak signal strength and a small coverage range.…”

Section: Introductionmentioning

confidence: 99%

Dual‐band circular patch antenna working in TM₄₁ and TM₁₁ mode for on‐/off‐body communications

Gao

Dou

et al. 2023

IET Microwaves Antenna & Prop

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A capacitive coupling dual‐band circular patch antenna for on‐/off‐body communications is proposed for 3.5 GHz world interoperability for microwave access band and 5.8 GHz industrial scientific medical band. The antenna has a compact structure with a single substrate made of polydimethylsiloxane which is flexible and easy to wear. To realise off‐body mode, the antenna adopted bias feeding. The on‐body mode is achieved by symmetrically loading four shorting vias on the edge of the patch to stimulate TM41 mode, which tends to bring a high gain of the antenna. The measured operating bandwidths of the antenna for off‐body and on‐body modes are 120 MHz (3.45–3.57 GHz) and 360 MHz (5.54–5.90 GHz) respectively. The peak gains are 5.99 dBi for off‐body mode and 5.46 dBi for on‐body mode. Moreover, the antenna displays robust performances when it is bended or closed to human bodies. Meanwhile, low specific absorption rate values are proving that the antenna is safe to wear on human bodies.

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A Wideband Metasurface Antenna With Dual-Band Dual-Mode for Body-Centric Communications

Cited by 23 publications

References 37 publications

A Review of the Advancement of Metasurfaces in Wearable Antenna Design For OFF-body Communications

A Review of the Advancement of Metasurfaces in Wearable Antenna Design For OFF-body Communications

A dual‐band dual‐polarized omnidirectional patch antenna for on‐body application

Dual‐band circular patch antenna working in TM₄₁ and TM₁₁ mode for on‐/off‐body communications

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A Wideband Metasurface Antenna With Dual-Band Dual-Mode for Body-Centric Communications

Cited by 23 publications

References 37 publications

A Review of the Advancement of Metasurfaces in Wearable Antenna Design For OFF-body Communications

A Review of the Advancement of Metasurfaces in Wearable Antenna Design For OFF-body Communications

A dual‐band dual‐polarized omnidirectional patch antenna for on‐body application

Dual‐band circular patch antenna working in TM41 and TM11 mode for on‐/off‐body communications

Contact Info

Product

Resources

About

Dual‐band circular patch antenna working in TM₄₁ and TM₁₁ mode for on‐/off‐body communications