A Low Power Capacitance to Frequency Converter in 180nm CMOS for an Implantable Capacitive Pressure Sensor

Zhang, Chaoping; Gallichan, Robert; Lapshev, Stepan; Budgett, David; McCormick, Daniel J.

doi:10.1109/biocas.2019.8919067

Cited by 2 publications

(5 citation statements)

References 11 publications

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“…As we can see, at 22 m from the relay antenna the RF-EH system, as well as both architectures, could feed all pressure sensors cited in [36][37][38][39]. At 40 m, the sensors reported in [37][38][39] could be fed. At 110 m, the RF-EH system and the first architecture could feed the sensor from [39].…”

Section: Pressure Sensorsmentioning

confidence: 98%

“…Figure 34 shows the feeding ability of both architectures and the RF-EH system in the function of the distance from the relay antenna. As we can see, at 22 m from the relay antenna the RF-EH system, as well as both architectures, could feed all pressure sensors cited in [36][37][38][39]. At 40 m, the sensors reported in [37][38][39] could be fed.…”

Section: Biomedical Sensorsmentioning

confidence: 98%

“…The power consumption of this sensor is 390 μW. In [39], the authors propose a sensor to detect pressure changes from 30 mmHg to 1000 mHg. It consumes a power of 72 μW.…”

Section: Pressure Sensorsmentioning

confidence: 99%

“…Figure 33 shows the feeding abilities of the RF-EH system and both architectures according to the distance from relay antenna. [36][37][38][39], respectively.…”

Section: Pressure Sensorsmentioning

confidence: 99%

“…At 40 m, the sensors reported in [37][38][39] could be fed. At 110 m, the RF-EH system and the first architecture could feed the sensor from [39]. The second architecture doesn't provide enough DC power.…”

Section: Pressure Sensorsmentioning

confidence: 99%

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A New RF Energy Harvesting System Based on Two Architectures to Enhance the DC Output Voltage for WSN Feeding

Benkalfate

Ouslimani

Kasbari

et al. 2022

Sensors

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In this paper, a new RF Energy Harvesting (RF-EH) system for Wireless Sensor Network (WSN) feeding is proposed. It is based on two different monitored architectures using switch circuits controlled by the input powers. One architecture is more adapted to high input powers and the other to low input powers. The two different architectures and the system are designed and realized on Teflon glass substrate with a relative permittivity of 2.1 and thickness of 0.67 mm. They are tested separately as a function of the distance from the relay antenna. A new multiband antenna with a size of 40 × 30 mm2 is used for both architectures and the system. The measured antenna gains are 2.7 dB, 2.9 dB, and 2.55 dB for the frequencies of 1.8 GHz, 2.1 GHz, and 2.66 GHz corresponding to the mobile communication networks, respectively. The rectifier consists of two Schottky diodes forming a full-wave rectifier and voltage doubler. The maximum measured RF-to-DC conversion efficiency is 71.5%. The proposed RF-EH system provides a maximum DC output voltage of 5.6 V and 3.15 V for an open and 2 kΩ resistance load, respectively.

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Section: Pressure Sensorsmentioning

confidence: 98%

Section: Biomedical Sensorsmentioning

confidence: 98%

“…The power consumption of this sensor is 390 μW. In [39], the authors propose a sensor to detect pressure changes from 30 mmHg to 1000 mHg. It consumes a power of 72 μW.…”

Section: Pressure Sensorsmentioning

confidence: 99%

“…Figure 33 shows the feeding abilities of the RF-EH system and both architectures according to the distance from relay antenna. [36][37][38][39], respectively.…”

Section: Pressure Sensorsmentioning

confidence: 99%