Design investigation of a dual-band wearable antenna for tele-monitoring applications

Shirvani, Parisa; Khajeh-Khalili, Farzad; Neshati, Mohammad Hassan

doi:10.1016/j.aeue.2021.153840

Cited by 19 publications

(11 citation statements)

References 14 publications

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“…FIGURE 9. A proposed antenna placed on human body [47] In [48], designed and fabricated a multiband wearable antenna for telemedicine applications that use Defected Ground Structure (DGS) in rectangular parasitic elements. Multiple beam-forming antennas were also investigated to improve the efficiency of wearable antennas in a multipath fading environment [23], [24].…”

Section: A Specific Absorption Rate (Sar) and On-body Measurementmentioning

confidence: 99%

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Recent Advancement of Wearable Reconfigurable Antenna Technologies: A Review

et al. 2022

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Wireless Body Area Network (WBAN) technology is gaining popularity in personal communication due to the expanding improvement in wireless technology. Wearable antennas are utilized in various WBAN applications including personal healthcare, entertainment, military, and many more due to their attractive characteristics and the potential for integrating lightweight, compact, low-cost, and adaptable wireless communications. A wearable reconfigurable antenna will allow a single antenna to operate at multiple resonant frequencies, radiation, polarization or hybrid between them, by using single or multiple active switching devices for signal transmission and reception in different parts of human body, rather than using multiple antennas. Over the years, several review papers were reported on wearable antennas which discussed the requirements and issues of wearable antennas in terms of their design, fabrication, and measurement. Nowadays, WBAN technology employs a single wearable reconfigurable antenna to perform multiple functions in different parts of human body. Recently, a significant amount of work has been carried out in the area of wearable reconfigurable antennas for WBAN applications. This paper presents a comprehensive review of the requirements and analysis needed for wearable reconfigurable antennas such as Specific Absorption Rate (SAR) for on-body analysis, investigation of the antennas in bending conditions, reconfigurable techniques and reconfigurable performance metrics.

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Section: A Specific Absorption Rate (Sar) and On-body Measurementmentioning

confidence: 99%

“…FIGURE 10. Photographs of the fabricated antenna (a) on human body, front side and back side (b) Simulated 1 g SAR at 0.9 / 1.8GHz[48] …”

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confidence: 99%

Recent Advancement of Wearable Reconfigurable Antenna Technologies: A Review

et al. 2022

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“…A MIMO antenna for WiFi standards in wearable technology is demonstrated in Noghanian. 11 A dual-band MIMO antenna using organza fabric is reported in Shirvani et al 12 for 2.4/5 GHz wearable applications. The specific absorption rate (SAR) has been enhanced in a dual-band MIMO antenna using electromagnetic bandgap structures.…”

Section: Introductionmentioning

confidence: 99%

Conformal eight‐port dual band antenna with switchable radiation pattern for 5G enabled on‐body wireless communications

Satpathy,

G. P.

2023

Micro & Optical Tech Letters

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A novel conformal quasi‐yagi antenna and its Multiple Input Multiple Output (MIMO) implementations for wireless body area networks (WBAN) application is reported in this letter. The antenna is developed on a 0.05 mm thin polyimide substrate making the antenna more flexible and conformal. The footprint of the proposed antenna is 35 × 35 mm with a dual dipole arm‐like structure making it resonant at 2.45 and 3.5 GHz covering the industrial scientific and medical and 5G bands for WBAN communications. The antenna is excited using a microstrip‐to‐slotline termination suitably terminated by a circular patch to realize the impedance matching. The ground plane is shaped to maintain good isolation between neighboring antennas during the eight‐element MIMO antenna development. The MIMO antennas are arranged circularly to achieve good antenna coverage along the azimuth directions. The antenna generates a tangential radiation pattern to the plane of the human body making it suitable for on‐body wireless communications. The proposed antenna offers a rotatable radiation pattern by appropriately choosing the antenna port of excitation. The proposed MIMO antenna offers an average gain of 4.5 and 5.2 dBi at 2.45 and 3.5 GHz, respectively. The MIMO antenna parameters are evaluated and presented. The calculated MIMO parameters are within the acceptable limits. Thus, the flexible nature with rotatable directional radiation patterns has made this antenna an attractive choice for on‐body communications in WBAN.

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“…The SAR value is defined by The United States (US) and European Union (EU) regulatory authorities to maintain safety restrictions [3]. Different methods to gain enhancement and bandwidth improvement of a wearable antenna are presented in [4,5]. Reconfiguring the radiation pattern is a key factor to enhance the performance of the antenna which leads to interference reduction and system security increment.…”

Section: Introductionmentioning

confidence: 99%

Beam Steering of Wearable Antenna with Metamaterial Structures for Patient Monitoring

Shirvani¹,

Khalili²,

Abd‐Alhameed³

2022

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9

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At 5.2 GHz, in the industrial, scientific, and medical (ISM) sub-channels, a unique metamaterial (MTM) structure is used to tilt the beam and boost the directivity of a wearable antenna. The antenna substrate in this design is made of a typical jean cloth, which is a wearable and flexible material. The dielectric constant of normal denim fabric is 2.17, the thickness is 3.175 mm, and the tan (δ) value is 0.002. The antenna's radiation beam is steered in the right direction for healthcare purposes utilising this architecture. The radiation beam is slanted by 9 o in the E-plane, according to the simulation results. At 5.2 GHz, the gain was found to be 6.35 dB. Additionally, the specific absorption rate (SAR) is ideal for medicinal applications. The results show that the proposed antenna is a viable biomedical technology option.

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Design investigation of a dual-band wearable antenna for tele-monitoring applications

Cited by 19 publications

References 14 publications

Recent Advancement of Wearable Reconfigurable Antenna Technologies: A Review

Recent Advancement of Wearable Reconfigurable Antenna Technologies: A Review

Conformal eight‐port dual band antenna with switchable radiation pattern for 5G enabled on‐body wireless communications

Beam Steering of Wearable Antenna with Metamaterial Structures for Patient Monitoring

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