900 MHz Miniaturized Rectenna (original) (raw)
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A Broadband Rectenna for RF Energy Harvesting from Low Power Levels
In the article, a broadband rectenna is proposed that can harvest energy from low input power levels. A broadband rectenna is designed that can operate between 1.4 GHz and 2.8 GHz with a bandwidth of 1.4 GHz. The proposed rectenna covers two important bands, i.e., GSM 1800 MHz and ISM 2450 MHz. The antenna consists of an antenna and a rectifier. A hexagonal patch antenna is designed with a defective ground structure that can operate from 1.4 GHz to 2.8 GHz. For rectification purposes, the HSMS2850 Schottky diode is used. To achieve good conversion efficiency, a matching circuit (a combination of bandpass and high-pass section) is designed. Maximum simulated conversion efficiencies achieved at 1.8 GHz with a load resistance of 1.3 kΩ are 21%, 36.3%, 51.2%, 63.7%, and 73.4% at power levels of -20 dBm, -15 dBm, -10 dBm, -5 dBm, and 0 dBm, respectively. Simulated conversion efficiency achieved at 2.45 GHz with a load resistance of 2 kΩ is 22.5%, 35%, 46%, 57.2%, and 68.5% at power level...
Compact Flat Dipole Rectenna for Energy Harvesting or Wireless Power Transmission Applications
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018
This paper addresses the design and the characterization of a compact (2.3 cm x 3.4 cm) flat dipole antenna surrounded by a rectangular ring. Due to its wide frequency bandwidth, this antenna covers the UMTS, LTE 4G, WiFi and WiMAX (IEEE 802.16e) bands and can be advantageously used for RF Energy Harvesting or Wireless Power Transmission applications. A compact rectenna using the proposed antenna was manufactured and characterized. It allows reaching a RF -DC conversion efficiency of 38.6% for an E-field of 7V/m with a 1.5 kΩ load.
Electrical Engineering Acta, 2021
This research purposed the design of rectenna that it can convert the electromagnetic field source into the DC voltage output. The research is conducted in two steps, simulation and fabrication of antennas, and rectifier circuits. This research applies CST Studio Suite software to simulate the antenna and NI Multisim 14.0 to simulate the rectifier. The antenna has been designed and fabricated by utilizing the array antenna of the circular patch microstrip with adding of the insertion feeder with 7 mm of length and 1 mm of width to reach of the matching antenna. The rectifier has been created by using BAT 85 DO-35 Schottky diode where it can work at high frequency. The measurement result of the antenna is minimum with the return loss amount of 33.783686 dB, bandwidth is 100 MHz, and VSWR (Voltage Standing Wave Ratio) is 1.021669. The rectenna can receive a maximum voltage of 11 mV at a range of 1cm.
Rectenna Design For Electromagnetic Energy Harvesting
ICNCRE 2013
The energy harvesting is the process by which energy from different sources of radiation is captured and stored. The harvesting of this energy would be an alternative energy capable of replacing, totally or partially, the battery of certain micro systems that require a low amount of energy. This paper firstly presents the quantification of the radiated power available in the ambient environment with respect to frequency through various measurements. This quantification of the RF power according to the considered environment is necessary since, it allows to choose frequency bands with the highest power density, and then to estimate the recoverable maximal DC power. Secondly, we present various simulation results under HFSS software to analyze the performance of antenna candidates for this study and which are the first elements constituting the rectennas.
Electromagnetic Energy Harvesting for Rectenna
IT Convergence and its Applications, 2013
In this paper, we present the review of energy harvesting contained in electromagnetic waves. An overview of existing energy harvesting techniques is discussed, which will motivate researchers to design antenna in the field of electromagnetic energy harvesting. It also focuses on a characteristic of patch antenna for designing Rectenna.
Design of a Rectenna in 2.45 GHz Band Frequency for Energy Harvesting
Energy and Power Engineering, 2021
There are several sources of energy recovery in the ambient environment. The radiofrequency energy harvesting system is used to harvest the electromagnetic energy in the air by processing energy sources to charge low-power electronic devices. Rectenna termed as a rectifying antenna is a device that is used to convert electromagnetic waves in the air into direct electric current. In this work, we have designed firstly the patch antenna with a small size printed on the FR4 substrate (40 mm × 47.5 mm × 1.6 mm) and then the rectifier circuit. This rectenna is capable of working at a frequency range of 2.45 GHz. The antenna was designed using High Frequency Structure Simulator (HFSS) 13.0 software with the result of working frequency of 2.453 GHz, S11 (Return Loss) −52 dB, Voltage Standing Wave Ratio (VSWR) 1.036, gain 3.48 dB and bandwidth 150 MHz. The efficiency of rectifier design on Advanced Design System (ADS) 2011 software is 54% at the input power of 0 dBm at 2.45 GHz. The resulting system is capable of producing electrical energy to power low-power electronic equipment at a DC voltage of 732 mV.
A Compact Rectenna System With High Conversion Efficiency for Wireless Energy Harvesting
IEEE Access, 2018
A novel coplanar waveguide-fed rectenna with high efficiency is proposed and implemented in this paper for 2.45-GHz Bluetooth/ wireless local area network applications. The antenna has compact dimensions of 18 mm × 30 mm, which is simulated and manufactured using a low-cost FR4 substrate with a thickness of 1.6 mm. A tuning stub technique with rectangular slots is used for better impedance matching and enhancing the impedance bandwidth of the antenna with a peak gain of 5.6 dB. The proposed novel antenna for RF energy harvesting applications exhibits dipolelike radiation pattern in H-plane and omnidirectional pattern in E-plane with improved radiation efficiency. Single-stage Cockcroft-Walton rectifier with L-shaped impedance-matching network is designed in advance design system and fabricated on FR4 substrate. The dc output of the rectenna is measured as 3.24 V with a load resistance of 5 k. A simulated peak conversion efficiency of 75.5% is attained, whereas the measured one is observed to be 68% with an input signal power of 5 dBm at 2.45 GHz. INDEX TERMS Rectennas, printed antennas, Wi-Fi, WLAN, ultrawideband, wireless energy harvesting.
Compact and High-Efficiency Rectenna for Wireless Power-Harvesting Applications
International Journal of Antennas and Propagation, 2021
A compact, single-layer microstrip rectenna for dedicated far-field RF wireless power-harvesting applications is presented. The proposed rectenna circuit configurations including multiband triple L-Arms patch antenna with diamond slot ground are designed to resonate at 10, 13, 17, and 26 GHz with 10 dB impedance bandwidths of 0.67, 0.8, 2.45, and 4.3 GHz, respectively. Two rectifier designs have been fabricated and compared, a half wave rectifier with a shunted Schottky diode and a voltage doubler rectifier. The measured and simulated maximum conversion efficiencies of the rectifier using the shunted diode half-wave rectifier are 41%, and 34%, respectively, for 300 Ω load resistance, whereas they amount to 50% and 43%, respectively, for voltage doubler rectifier with 650 Ω load resistance. Compared to the shunted rectifier circuit, it is significant to note that the voltage doubler rectifier circuit has higher efficiency. Both rectifier’s circuits presented are tuned for a center fr...
A review of rectenna models for electromagnetic energy harvesting
Journal of Engineering, Design and Technology, 2009
Purpose-Distributed wireless sensor networks (DWSNs) are applied in a variety of applications that can enhance the quality of human life. Batteries are the predominant source of energy in DWSNs. One of the key obstacles in the adoption of DWSNs technology is the limited lifetime of batteries in microsensors. Recharging or replacing depleted batteries can significantly increase costs in DWSNs. The purpose of this paper is to address, through a thorough review, this power challenge in DWSNs and to evaluate a 16-element equiangular spiral rectenna to harvest ambient microwave energy in real-life scenarios to supply indoor DWSNs. Design/methodology/approach-The paper focuses on the practical implementation of a rectenna that can be used in electromagnetic energy harvesting. The design and measurement of the rectenna follows a broad overview of rectenna designs reported in the literature. Findings-The paper concludes that the 16-element equiangular spiral rectenna has the potential to generate power that enables long periods of operation of the DWSNs without human intervention in the power management process, thus reducing maintenance and administration costs. Originality/value-Research into electromagnetic power harvesting is very limited in the South African context. The paper presents a concise overview of existing power harvesting techniques that will benefit novice researchers in the field of electromagnetic energy harvesting. It concludes with the performance characterisation of a spiral array rectenna.
Rectenna Design for Radio Frequency Wireless Energy Harvesting
International Journal of Advances in Scientific Research and Engineering , 2022
The concept of wireless power transmission (WPT) has been introduced for nearly a century. Some of the achievements made so far have made energy harvesting a reality, capable of providing alternative sources of energy. This paper provides a summary of RF energy harvesting techniques to serve as a guide for designing RF energy harvesting units. Since energy harvesting circuits are designed to operate at relatively small voltages and currents, they rely on the latest electrical technology for high efficiency. Thus, thorough analysis and discussions of the various designs and trade-offs between them are included. Also, we introduce most of the recent applications of radio frequency (RF) energy harvesting. Also in this work, a rectenna, which is a combination between an antenna and a rectifier, with the purpose of energy harvesting, is designed and verified through simulation. The rectenna consists of two main components: the first is a microstrip patch antenna and the second is a rectifying circuit. The microstrip antenna gather the wireless power, then the received RF power is rectified to DC using the rectifier. In this work, we will design and simulate the microstrip antenna using HFSS software, and the rectifier circuit using ADS software.