Broadband Implantable Antenna for Wireless Power Transfer in Cardiac Pacemaker Applications

Wang, Mengfan; Liu, Haixia; Zhang, Pei; Zhang, Xuefang; Yang, Hong; Zhou, Guofei; Li, Long

doi:10.1109/jerm.2020.2999205

Cited by 55 publications

(30 citation statements)

References 22 publications

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“…On the other hand, Table 3 shows a summarized comparison of the proposed antenna with related studies in terms of antenna type, dimensions, operating frequency, bandwidth, and peak gain [7,[9][10][11][16][17][18]. The proposed antenna can be seen to have advantages in compactness and uniform bandwidth at triple frequencies, but the gain remains limited by its small size.…”

Section: Fabrication Measurement and Discussionmentioning

confidence: 99%

“…Moreover, an implantable antenna of a small size can reduce the risk of infection and increase durability. Recently, the planar inverted-F antenna (PIFA) [7][8][9], the meander-line (ML) antenna [10], and the loop antenna [11] have been widely used for implantable devices. Because they operate at multiple bands, using the shorting pin, ground slot, or shunt capacitor can easily adjust to the desired resonant frequencies [12].…”

Section: Introductionmentioning

confidence: 99%

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A Miniaturized Implantable Antenna for Wireless Power Transfer and Communication in Biomedical Applications

Tung

Seo

2022

J Electromagn Eng Sci

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A miniaturized, triple-band, implantable antenna for biomedical applications is presented in this paper. The proposed antenna with dimensions of 8.1 mm × 8.1 mm × 0.64 mm, combined with a shorting pin and a ground slot, operates at bands between 401–406 MHz for the medical implant communications service (MICS); 1,395–1,400 MHz and 1,427–1,432 MHz for the wireless medical telemetry service (WMTS); and 2,400–2,500 MHz for industrial, scientific, and medical (ISM) applications. The antenna is deployed simultaneously for data transmission and wireless power transfer (WPT) at the two frequencies of communications and the ISM band, respectively. The antenna achieves peak gain values of -35.7 dBi, -25.1 dBi, and -19.5 dBi with the impedance bandwidths of 10.1%, 15.5%, and 9.58% at 402 MHz, 1.4 GHz, and 2.45 GHz, respectively. The experiments in the muscle tissue were implemented to demonstrate the reliability of the proposed antenna. To ensure safety standards in the human body environment, the specific absorption rate (SAR) value is simulated and evaluated thoroughly.

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Section: Fabrication Measurement and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Miniaturized Implantable Antenna for Wireless Power Transfer and Communication in Biomedical Applications

Tung

Seo

2022

J Electromagn Eng Sci

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“…Despite the similarity of the implementation of IPT to CPT, IPT is more widely used in diverse implantable device applications owing to its larger distance and moderate power delivery efficiency, [ 89 ] which can expand the range of applications of the implantable device (e.g., not only subcutaneous applications but also to deeply located organs, including heart, [ 90 ] brain, [ 4,91–93 ] and stomach). Several commercial wearable and implantable devices (e.g., pacemaker, [ 94–96 ] cochlear implant, [ 97–99 ] and brain stimulator) [ 100–102 ] have been developed using the IPT method. Accordingly, numerous related research results have also been reported from academia.…”

Section: Wireless Poweringmentioning

confidence: 99%

Wireless Power Transfer and Telemetry for Implantable Bioelectronics

Yoo

Lee

Joo

et al. 2021

Adv Healthcare Materials

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Implantable bioelectronic devices are becoming useful and prospective solutions for various diseases owing to their ability to monitor or manipulate body functions. However, conventional implantable devices (e.g., pacemaker and neurostimulator) are still bulky and rigid, which is mostly due to the energy storage component. In addition to mechanical mismatch between the bulky and rigid implantable device and the soft human tissue, another significant drawback is that the entire device should be surgically replaced once the initially stored energy is exhausted. Besides, retrieving physiological information across a closed epidermis is a tricky procedure. However, wireless interfaces for power and data transfer utilizing radio frequency (RF) microwave offer a promising solution for resolving such issues. While the RF interfacing devices for power and data transfer are extensively investigated and developed using conventional electronics, their application to implantable bioelectronics is still a challenge owing to the constraints and requirements of in vivo environments, such as mechanical softness, small module size, tissue attenuation, and biocompatibility. This work elucidates the recent advances in RF‐based power transfer and telemetry for implantable bioelectronics to tackle such challenges.

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“…Microwave wireless power transmission (MWPT) has been a promising technology for wireless power transfer via microwaves since 1968. [1][2][3] Because MWPT does not involve wires, it has important applications, such as those in solar power satellite, 4,5 charging of hovering unmanned aerial vehicle, [6][7][8][9] energy supply to remote islands, 10 implantable device, [11][12][13] and energy harvesting. [14][15][16][17][18] A typical MWPT system comprises a microwave power source, a transmitting antenna, a receiving antenna, and a rectifier, as shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

An efficient 5.8 GHz microwave wireless power transmission system

Chen

Hao

et al. 2022

Int J RF Mic Comp-Aid Eng

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This study demonstrates an efficient 5.8 GHz microwave wireless power transmission (MWPT) system. The whole system comprises a transmitting subsystem and a receiving subsystem. A 64-way phased microwave power source and a transmitting antenna array of 1 m Â 1 m are included in the transmitting subsystem. By exciting the transmitting array with a 10-dB Gaussian amplitude distribution and a quadratic phase distribution via the phased microwave power source, the transmitting subsystem radiates a low side-lobe and focused microwave beam. The receiving subsystem comprises a receiving antenna array of 0.5 m Â 0.5 m and 64 rectifiers. The efficient receiving antenna array and rectifiers realize an efficient rectenna array. An experiment on the MWPT system is conducted. The total microwave power output from the source is 24 W, and the transmission distance is 10 m. According to the measurements, the total rectified direct current (DC) power is 4.58 W, and the overall RF-DC efficiency is 19.08%.

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Broadband Implantable Antenna for Wireless Power Transfer in Cardiac Pacemaker Applications

Cited by 55 publications

References 22 publications

A Miniaturized Implantable Antenna for Wireless Power Transfer and Communication in Biomedical Applications

A Miniaturized Implantable Antenna for Wireless Power Transfer and Communication in Biomedical Applications

Wireless Power Transfer and Telemetry for Implantable Bioelectronics

An efficient 5.8 GHz microwave wireless power transmission system

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