Double Patch Antenna Array for Communication and Out-of-band RF Energy Harvesting

Silva, Vinicius Santana da; Paz, Humberto Pereira da; Cambero, Eduardo Vicente Valdés; Pereira, Emerson T.; Casella, Ivan R. S.; Capovilla, C. E.

doi:10.1590/2179-10742020v19i3788

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…The inductance is L An and capacitance C An in Equation (4). Adjustments the resonant frequency, which must meet Equation (2) by ω for generating f, the value of which is utilized later for process analysis [25,26] on the propagation of the transmitted RF wave.…”

Section: × 4 Direction-finding Hybrid Coupler and Hybrid Electromagnetic Solar Circuitmentioning

confidence: 99%

CP Antenna with 2 × 4 Hybrid Coupler for Wireless Sensing and Hybrid RF Solar Energy Harvesting

Mujahidin

Kitagawa

2021

Sensors

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The main challenge faced by RF energy harvesting systems is to supply relatively small electrical power to wireless sensor devices using microwaves. The solution is to implement a new device in a circularly polarized rectenna with circular polarization sensitivity integrated with a thin-film solar cell. Its dual-feed antennas are connected to a 2 × 4 asymmetric hybrid coupler and a multi-stage voltage doubler rectifier circuit. This configuration has a 2 × 4 asymmetric hybrid coupler used to produce 4 outputs with a 90-degree waveform phase difference. The two ports can independently be connected to the wireless sensor circuit: radiofrequency harvesting of hybrid energy solar and information equipment can be carried out with these two antennas. The Dual-Feed circular patch antenna has a two-port bandwidth of 137 MHz below −15 dB and an axial ratio of less than 3 dB, with a center frequency of 2.4 GHz with directional radiation and a high gain of 8.23 dB. It can be sensitive to arbitrary polarization of the input voltage multiplier waveform to overcome uncertainty in empirical communication environments. A parallel structure is arranged with a thin film solar cell integration from the transmitter with an output voltage of 1.3297 V with a compact composition and RF energy. The importance of adopting a wireless sensor strategy with circular polarization sensitivity and integrated RF solar energy harvesting rather than a single source method makes this research a significant novelty by optimizing the analysis of multiple wireless sensor signal access.

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Section: × 4 Direction-finding Hybrid Coupler and Hybrid Electromagnetic Solar Circuitmentioning

confidence: 99%

CP Antenna with 2 × 4 Hybrid Coupler for Wireless Sensing and Hybrid RF Solar Energy Harvesting

Mujahidin

Kitagawa

2021

Sensors

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“…After the individual characterization of each element of the rectenna (antenna and rectifier), it is necessary to characterize the assembled QYR. For this purpose, a measurement setup was implemented inside an anechoic chamber, employing a CW transmission signal at 2.45 GHz with linear polarization [37] . The average power density (SAV) was adjusted from 0.05 to approximately 6 μW/cm 2 , for a link distance of 40 cm, which is sufficient to reach the far-field zone from the transmission antenna (an identical QY) and the elements were orientated to guarantee a line-of-sight propagation in co-polarization.…”

Section: Qyr Characterizationmentioning

confidence: 99%

IEEE 802.11b/g Practical Assessment Using a Low-Cost Quasi-Yagi Rectenna for Indoor RF Energy Harvesting

Silva

Paz

Cambero

et al. 2021

J. Microw. Optoelectron. Electromagn. Appl.

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This article presents an experimental analysis of the use of signals transmitted by Wireless Local Area Networks (WLAN) based on the IEEE 802.11b/g standards for Radio Frequency Energy Harvesting (RFEH) applications in indoor environments employing a Quasi-Yagi Rectenna (QYR) topology. This analysis is a crucial point to distinguish the use of the IEEE 802.11b/g standards for ambient RFEH applications and contributes to the debate on the use of different types of energy available for free in modern society. For it, a dedicated setup, developed in a controlled environment to avoid any external interference, was built to carry out the programmed measurements. The results obtained indicate that IEEE 802.11b/g standards have great potential for applications in RFEH, with the IEEE 802.11b average power four times higher than IEEE 802.11g at the rectifier output.

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“…COMPARISON OF PUBLISHED WORK REGARDING POWER-HARVESTING ANTENNAS Both refers to inductive or capacitive antenna was employed by[28] to operate at 1.8 GHz and 2.4 GHz with Simultaneous Wireless Information and Power Transfer (SWIPT) mechanism.…”

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confidence: 99%

Rectenna Design for Enhanced Node Lifetime in Energy Harvesting WSNs

Sonwalkar¹,

Kalmani²

2022

IJACSA

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In a scenario where every possible solution is investigated for sustainability, Energy Harvesting (EH) stands as an undisputed candidate for enhancing the network lifetime in WSNs where node lifetime decides the network's life. Radio Frequency (RF) energy is abundantly available in the ambience among all the available energy sources. Since both information and power are transmitted in an RF signal, EH is possible in the far-field region. At first, we present a novel 4-element rectangular Patch Antenna Array (PAA) design of EH rectenna. The receiving antenna is designed to pick up the radio signal in the RF range (2.45 GHz) from the free space. Then, the H-shape antenna is modified by introducing a circular slot to enhance the bandwidth. The paper compares the results of the basic parameters of the antenna, such as return loss, input impedance, bandwidth, gain, directivity, and efficiency. As a result, the modified H-shaped antenna (with circular slot) has an increased gain from 8.24 dB to 8.32 dB, with a reduced return loss from -10 dB to -16 dB and enhanced bandwidth from 64.8 MHz to 868 MHz. The high gain, large bandwidth, suitably matched impedance for a minor return loss, and high efficiency of the modified H-shaped patch antenna makes it eligible for energy harvesting application.

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Double Patch Antenna Array for Communication and Out-of-band RF Energy Harvesting

Cited by 6 publications

References 19 publications

CP Antenna with 2 × 4 Hybrid Coupler for Wireless Sensing and Hybrid RF Solar Energy Harvesting

CP Antenna with 2 × 4 Hybrid Coupler for Wireless Sensing and Hybrid RF Solar Energy Harvesting

IEEE 802.11b/g Practical Assessment Using a Low-Cost Quasi-Yagi Rectenna for Indoor RF Energy Harvesting

Rectenna Design for Enhanced Node Lifetime in Energy Harvesting WSNs

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