A Compact Source–Load Agnostic Flexible Rectenna Topology for IoT Devices

Eid, Aline; Hester, Jimmy; Costantine, J.; Tawk, Y.; Ramadan, Ali; Tentzeris, Manos M.

doi:10.1109/tap.2019.2955211

Cited by 48 publications

(22 citation statements)

References 17 publications

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“…Realizing rectennas using additive manufacturing has attracted significant interest due to the potential for reducing the rectenna's cost [8], and for enabling rectennas on a variety of substrates. 2.4 GHz [9], sub-1 GHz [10], [11], and millimeterwave [2], [12] rectennas have been realized using directwrite inkjet and dispenser printing. In [11], where the printed rectenna was used to power a sensor node, the DC power management circuity, owing to its high-complexity, was integrated on a rigid PCB housing multiple lumped components.…”

Section: Introductionmentioning

confidence: 99%

Dispenser Printed Flexible Rectenna for Dual-ISM Band High-Efficiency Supercapacitor Charging

Wagih

Weddell

Beeby

2021

2021 IEEE Wireless Power Transfer Conference (WPTC)

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This paper presents a dual-band sub-1 GHz rectenna for near and far-field powering of Internet of Things (IoT) nodes. The rectifier is based on a coplanar waveguide (CPW) voltage doubler with inductive matching, achieving over 80% power conversion efficiency (PCE) at 10 dBm and 915 MHz. The rectifier is designed to directly charge a 6.8 mF supercapacitor with no DC power management circuitry or load tracking, achieving the highest reported average charging efficiency of 47.2% and 33.3%, at 433 and 915 MHz respectively. From 6 dBm input power, a 1.5-2.8 mA dummy load can be RFpowered with over 30% duty-cycle at 915 MHz. A dual-band single-layer antenna is designed and fabricated using dispenser printing on a flexible polyimide substrate. The antenna maintains over 2.1 dBi gain at 915 MHz with omnidirectional patterns, while occupying under 10×10 cm. The integrated rectenna is evaluated in two real-world applications: energy harvesting from a 915 MHz transmitter showing a 49% wireless charging efficiency for a 7.4 µW/cm 2 incident power density; and ambient energy harvesting generating 47 mJ in 5 seconds at 3 to 5 cm from a handheld two-way radio.

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Section: Introductionmentioning

confidence: 99%

Dispenser Printed Flexible Rectenna for Dual-ISM Band High-Efficiency Supercapacitor Charging

Wagih

Weddell

Beeby

2021

2021 IEEE Wireless Power Transfer Conference (WPTC)

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“…The rectifier layout is complete after connecting a 2 kΩ output resistance to extract the output DC power. The overall PCE of the designed rectifier can be obtained [5] from the following equation.…”

Section: Rectifier Designmentioning

confidence: 99%

“…In the recent times, several research works have been introduced with antennas and rectifiers for RF energy harvesting applications. Mostly for Wireless Local Area Network (WLAN) and Industrial, Scientific, and Medical (ISM) bands, RF energy harvesters have been proposed as in [5]- [8]. The RF to DC Power Conversion Efficiency (PCE) is increased by following the hierarchically similar technique of tapered matching network.…”

Section: Introductionmentioning

confidence: 99%

Monopole Antenna on Transparent Substrate and Rectifier for Energy Harvesting Applications in 5G

Azam¹,

Islam²,

Hossain³

et al. 2020

IJACSA

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In line with the harvested energy required for the emerging 5G technology, this article proposes a planar monopole antenna and a rectifier. The proposed Coplanar Waveguide (CPW)-fed antenna is printable on a transparent Poly-Ethylene Terephthalate (PET) substrate. The antenna has a center frequency at 3.51 GHz within a bandwidth of 307 MHz that covers the pioneer 5G band in Malaysia. The designed omnidirectional antenna exhibits the maximum gain of 1.51 dBi with a total efficiency of 95.17 percent. At the antenna frequency, a rectifier has been designed with the voltage doubler technique on a Rogers RO3003 substrate. Over an input RF power of 0 dBm, the rectifier has a power conversion efficiency around 42 percent. The proposed antenna rejects harmonics at least until 16 GHz frequency that makes it compatible with the rectifier to eliminate an additional bandpass filter or impedance matching network from the energy harvesting system.

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“…This configuration was comprised of an UWB rectifying circuit with the efficiency greater than 33% for mentioned frequency range. In order to obtain light weight rectenna system, various architectures based on paper substrate have been reported [7]- [11]. Recently, an efficient flexible rectenna system reported in [11] tested for wristband application.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Dual-Band Rectenna With Full Azimuth Coverage

2021

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This paper presents a novel cylindrical shaped dual-band flexible rectenna capable of harvesting RF energy from number of RF sources available in the entire azimuth plane. The proposed configuration is an array of four identical dual-band rectenna subsystems, printed on the lightweight flexible substrate. Here, each rectenna subsystem comprises of a dual-ring shaped dual-band monopole antenna and a dual-band rectifying circuit. The designed topology is good for popular bands of LTE 1.8 GHz and Wi-Fi 2.45 GHz. The robustness of the designed antenna in the proposed cylindrical shaped rectenna is also verified by testing it for different bending angles in the H-plane by simulation as well as measurement. The bending performance is tested for the antenna using S11 and farfield radiation pattern. Further, for extracting maximum RF signals in the entire azimuth plane, these four identical antennas are backed by a wide-band artificial magnetic conductor (AMC) placed in the inner region of the cylinder. The fabricated single rectenna unit is capable of converting power with 40% efficiency at very low input RF power-12 dBm. Finally, the overall rectenna array is fabricated and validated through measurements using two different test antennas as a RF sources in the real environment of lab. The proposed light weight, rectenna printed on a flexible substrate can extract RF signals from a number of randomly distributed RF sources simultaneously, while maintaining the overall compact configuration.

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A Compact Source–Load Agnostic Flexible Rectenna Topology for IoT Devices

Cited by 48 publications

References 17 publications

Dispenser Printed Flexible Rectenna for Dual-ISM Band High-Efficiency Supercapacitor Charging

Dispenser Printed Flexible Rectenna for Dual-ISM Band High-Efficiency Supercapacitor Charging

Monopole Antenna on Transparent Substrate and Rectifier for Energy Harvesting Applications in 5G

A Flexible Dual-Band Rectenna With Full Azimuth Coverage

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