Design and performance analysis of a biomedical implantable patch antenna

Hossain, Tamim; Mahmud, Reazuddin; Juhi, Hajmina Khanom; Imtiaz, Mohammad Rakin; Hoque, Rashedul

doi:10.1109/icaee.2015.7506793

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Although over the past few years, immense research has been devoted to antenna design for biomedical telemetry applications [22][23][24][25], the majority of them are designed for deep implantable devices such as leadless pacemakers [26,27], deep brain stimulators [28,29], and ingestible endoscopes [21,30]. Specifically, only a few implantable antennas are targeted for the arm [31][32][33][34][35][36][37][38] and none for internal implantation for hemodialysis applications. An early study of implantable antennas for arm-implanted wireless communication was reported by Xia et al [31] and although the initial design size of this H-shaped cavity slot antenna is compact, the fabricated antenna is 2.5 times larger than the simulation one, which exhibits a gap between the simulation and the fabrication.…”

Section: Introductionmentioning

confidence: 99%

“…An early study of implantable antennas for arm-implanted wireless communication was reported by Xia et al [31] and although the initial design size of this H-shaped cavity slot antenna is compact, the fabricated antenna is 2.5 times larger than the simulation one, which exhibits a gap between the simulation and the fabrication. Hossain et al [32] proposed an implantable antenna for bidirectional communication between an external monitor and implants in the arm over the MICS band. This study, however, was constrained by the bulky volume of the antenna and insufficient bandwidth of 92.7 MHz while the overall study lacks the analysis of the SAR, which is the top priority of wireless biomedical telemetry systems.…”

Section: Introductionmentioning

confidence: 99%

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A Compact Dual-Band Implantable Antenna for Wireless Biotelemetry in Arteriovenous Grafts

Zhang

Das

Hoare

et al. 2023

IEEE Trans. Antennas Propagat.

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Arteriovenous grafts (AVGs) are indispensable lifesaving implants for chronic kidney disease (CKD) patients undergoing hemodialysis. However, AVGs will often fail due to postoperative complications such as cellular accumulation termed restenosis, blood clots, and infections, which are dominant causes of morbidity and mortality. A new generation of hemodialysis implants equipped with biosensors and multi-band antennas for wireless power and telemetry systems that can detect specific pathological parameters and report AVGs' patency would be transformative for CKD. Our study proposes a compact dualband implantable antenna for hemodialysis monitoring applications. It operates in 1.4 GHz and 2.45 GHz for wireless power transfer and biotelemetry purposes. The miniaturized antenna with a current size of 5 × 5 × 0.635 mm 3 exhibits wide bandwidth (300 MHz at 1.4 GHz band and 380 MHz at 2.45 GHz band), along with good impedance matching at two resonance frequencies. In addition, simulations are performed separately in a three-layer homogenous phantom and a realistic human body model. Measurements of the proposed antenna are evaluated in minced pork. The measured results of the fabricated antenna prototype are closely harmonized with the simulation ones, and the effect of different proportions of fat tissue in pork mince was analyzed, to verify the sensitivity of the antenna to the contacting medium. The specific absorption rate (SAR) and link budget calculation are also analyzed. Finally, the wireless biotelemetry function of the proposed antenna is realized and visualized by adopting a pair of nRF24L01 wireless transceivers, and sustainable and stable wireless data transmission characteristics are shown at a high data rate of 2 Mbps with up to 20 cm transmission distance.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Compact Dual-Band Implantable Antenna for Wireless Biotelemetry in Arteriovenous Grafts

Zhang

Das

Hoare

et al. 2023

IEEE Trans. Antennas Propagat.

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A Miniaturized Dual-Band Circularly Polarized Implantable Antenna for Use in Hemodialysis

Song,

Wang,

Shi

et al. 2024

Sensors

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Hemodialysis is achieved by implanting a smart arteriovenous graft (AVG) to build a vascular pathway, but reliability and stability in data transmission cannot be guaranteed. To address this issue, a miniaturized dual-band circularly polarized implantable antenna operating at 1.4 GHz (for energy transmission) and 2.45 GHz (for wireless telemetry), implanted in a wireless arteriovenous graft monitoring device (WAGMD), has been designed. The antenna design incorporates a rectangular serpentine structure on the radiation surface to reduce its volume to 9.144 mm3. Furthermore, matching rectangular slots on the radiation surface and the ground plane enhance the antenna’s circular polarization performance. The simulated effective 3 dB axial ratio (AR) bandwidths are 11.43% (1.4 GHz) and 12.65% (2.45 GHz). The simulated peak gains of the antenna are −19.55 dBi and −22.85 dBi at 1.4 GHz and 2.45 GHz, respectively. The designed antenna is implanted in a WAGMD both in the simulation and the experiment. The performance of the system is simulated in homogeneous human tissue models of skin, fat, and muscle layers, as well as a realistic adult male forearm model. The measurement results in a minced pork environment align closely with the simulation results.

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Design and performance analysis of a biomedical implantable patch antenna

Cited by 2 publications

References 7 publications

A Compact Dual-Band Implantable Antenna for Wireless Biotelemetry in Arteriovenous Grafts

A Compact Dual-Band Implantable Antenna for Wireless Biotelemetry in Arteriovenous Grafts

A Miniaturized Dual-Band Circularly Polarized Implantable Antenna for Use in Hemodialysis

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