A Dual-Band Implantable Rectenna for Wireless Data and Power Support at Sub-GHz Region

Bakogianni, Sofia; Koulouridis, Stavros

doi:10.1109/tap.2019.2927879

Cited by 64 publications

(37 citation statements)

References 34 publications

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“…The proposed rectenna was designed to operate over the 2.4 GHz industrial, scientific, and medical radio band (ISM). In the work of Bakogianni and Koulouridis [50], an arm-implantable rectenna was proposed; a lightweight inverted planar F-antenna (PIFA) and a rectifier were also fitted with a planned rectenna. The researchers suggested the use of the rectenna in the medical device band (401-406 MHz) and in industrial, scientific research and medical (ISM) bands (902.8-928 MHz) to provide wireless data telemetry and transmit power.…”

Section: Rectennamentioning

confidence: 99%

Synthesis, Characterization and Development of Energy Harvesting Techniques Incorporated with Antennas: A Review Study

Ibrahim

Singh

Al‐Bawri

et al. 2020

Sensors

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The investigation into new sources of energy with the highest efficiency which are derived from existing energy sources is a significant research area and is attracting a great deal of interest. Radio frequency (RF) energy harvesting is a promising alternative for obtaining energy for wireless devices directly from RF energy sources in the environment. An overview of the energy harvesting concept will be discussed in detail in this paper. Energy harvesting is a very promising method for the development of self-powered electronics. Many applications, such as the Internet of Things (IoT), smart environments, the military or agricultural monitoring depend on the use of sensor networks which require a large variety of small and scattered devices. The low-power operation of such distributed devices requires wireless energy to be obtained from their surroundings in order to achieve safe, self-sufficient and maintenance-free systems. The energy harvesting circuit is known to be an interface between piezoelectric and electro-strictive loads. A modern view of circuitry for energy harvesting is based on power conditioning principles that also involve AC-to-DC conversion and voltage regulation. Throughout the field of energy conversion, energy harvesting circuits often impose electric boundaries for devices, which are important for maximizing the energy that is harvested. The power conversion efficiency (PCE) is described as the ratio between the rectifier’s output DC power and the antenna-based RF-input power (before its passage through the corresponding network).

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Section: Rectennamentioning

confidence: 99%

Synthesis, Characterization and Development of Energy Harvesting Techniques Incorporated with Antennas: A Review Study

Ibrahim

Singh

Al‐Bawri

et al. 2020

Sensors

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show abstract

“…Traditionally, two major techniques of delivering power wirelessly into the implant exist. e first one is far-field transmission using antennas [3][4][5][6][7][8][9]. An external antenna is placed away from the body to power and communicate with implants through an implantable antenna.…”

Section: Introductionmentioning

confidence: 99%

An Approach to Improve the Misalignment and Wireless Power Transfer into Biomedical Implants Using Meandered Wearable Loop Antenna

Kod

Zhou

Huang

et al. 2021

Wireless Power Transfer

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An approach to improve wireless power transfer (WPT) to implantable medical devices using loop antennas is presented. The antenna exhibits strong magnetic field and dense flux line distribution along two orthogonal axes by insetting the port inside the antenna area. This design shows excellent performance against misalignment in the y-direction and higher WPT as compared with a traditional square loop antenna. Two antennas were optimized based on this approach, one wearable and the other implantable. Both antennas work at both the ISM (Industrial, Scientific, and Medical) band of 433 MHz for WPT and the MedRadio (Medical Device Radiocommunications Service) band of 401–406 MHz for communications. To test the WPT for implantable medical devices, a miniaturized rectifier with a size of 10 mm × 5 mm was designed to integrate with the antenna to form an implantable rectenna. The power delivered to a load of 4.7 kΩ can be up to 1150 μW when 230 mW power is transmitted which is still under the safety limit. This design can be used to directly power a pacemaker, a nerve stimulation device, or a glucose measurement system which requires 70 μW, 100 μW, and 48 μW DC power, respectively.

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“…Wireless power transfer (WPT) technology is developing rapidly with the increasing requirements for applications such as smart home systems, health monitoring, electric vehicle charging, implantable electronic devices, and sensors [1][2][3][4][5][6][7][8]. Delivering wireless energy makes these systems more compact and intuitive to users.…”

Section: Introductionmentioning

confidence: 99%

Extendable Array Rectenna for a Microwave Wireless Power Transfer System

et al. 2021

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A rectenna is adopted in a microwave-based wireless power transfer system to rectify the received RF to DC power. Each rectenna includes a DC-DC converter at the DC output port to ensure a stable power supply and a Schottky diode for the DC-combining network. The results demonstrate that the RF-DC conversion efficiencies of the rectifier circuit and 4 × 1 rectenna were 71% and 71.2% when the unit-cell RF input level was 19 dBm and 19.6 dBm. The DC output levels of a 4 × 8 rectenna with and without the DC-DC converter were 28 V and 30 V when the unit-cell RF input level was 20.2 dBm. The RF-DC conversion efficiency was measured as 52.6% and 59.9% with and without the DC-DC converter, respectively. The Schottky diode combined with the D-DC C converter at the DC output port exhibits an increase in the DC power combining level, making it suitable for an extendable array rectenna system.

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A Dual-Band Implantable Rectenna for Wireless Data and Power Support at Sub-GHz Region

Cited by 64 publications

References 34 publications

Synthesis, Characterization and Development of Energy Harvesting Techniques Incorporated with Antennas: A Review Study

Synthesis, Characterization and Development of Energy Harvesting Techniques Incorporated with Antennas: A Review Study

An Approach to Improve the Misalignment and Wireless Power Transfer into Biomedical Implants Using Meandered Wearable Loop Antenna

Extendable Array Rectenna for a Microwave Wireless Power Transfer System

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