Optimization Design Methodology of Broadband or Multiband Antenna for Rf Energy Harvesting Applications

Yaseen, Reham M.; Naji, Dhirgham Kamal; Shakir, Amina Mahmoud

doi:10.2528/pierb21070104

Cited by 3 publications

(1 citation statement)

References 35 publications

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“…Therefore, a scalar objective (fitness) function for measuring the quality of enhancement in the performance is quite necessary by implementing EM-based tuning of geometric antenna parameters. In the case of multi-objectives, one of them may be selected as the primary objective while the others are considered as secondary objectives controlled by suitably defined constraints [19][20][21]. Recently, a novel algorithm for design optimization of a CP antenna structure is presented in [22].…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of a Circularly Polarized Antenna for Lte Bands 42/43 Applications

Gheni¹,

Naji²

2022

PIER C

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In this paper, an optimized circularly polarized (CP) antenna is proposed for operating in the LTE bands 42/43 applications. This CP antenna comprises three sections, the meander-line and L-shaped strip structures modeled on the front side of a Roger 3003 substrate, and on the back side a rotated H-shaped ground plane is printed. In order to further increase the antenna common bandwidth (CBW), that is the voltage standing wave ratio bandwidth (VRBW) and axial ratio bandwidth (ARBW), an offset-fed line on the front side and a shorting pin are used. A feasible solution of the optimized CP antenna with compact size is achieved by applying an optimization design methodology with a fitness function that takes into account the antenna performance parameters, CBW, or both the VRBW and ARBW in addition to the realized gain (RG). Two programs are operating in synchronous fashion for finding the optimal geometric antenna parameters, a particle swarm optimization (PSO) for implementing the fitness function in MATLAB and a CST MWS simulator tool for extracting the antenna performance parameters. The optimized antennas without and with shorting pin are obtained with a broadest CBW and feature of CP operation and an acceptable RG across the desired LTE 42 (3.4-3.6 GHz) and LTE 42/43 (3.4-3.8 GHz) band, respectively. The proposed two designed antennas, with and without shorting pin, are fabricated, and the measured results are in good agreement with the simulated ones. From measured results, a −10 B-S 11 impedance bandwidth (IBW) of 220 and 460 MHz (3.37-3.83 GHz), a 3-dB ARBW of 200 MHz (3.4-3.6 GHz) and 390 MHz (3.42-3.81 GHz) with respective maximum RG of 2.26 and 2.39 dBic are exhibited by the antennas without and with pin, respectively. The obtained 3-dB ARBWs and −10-dB IBWs make the proposed antennas entirely cover the LTE 42 or LTE 42/43 frequency bands.

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Section: Introductionmentioning

confidence: 99%

Optimal Design of a Circularly Polarized Antenna for Lte Bands 42/43 Applications

Gheni¹,

Naji²

2022

PIER C

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Design of Circularly Polarized Koch Snowflake Fractal Antenna With Schottky Band Diode Rectifiers for RF Energy Harvesting Applications

Sathiyapriya,

Sudhakar

2024

Int J Communication

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Radio frequency (RF) energy harvesting has recently become an effective way of powering wireless devices, reducing the requirement of batteries along with their related storage as well as lifespan restrictions. One of the main obstacles to RF energy harvesting is the limited quantity of energy that can be obtained from wireless sources due to weak signal strength, low efficiency, and poor gain. To address these shortcomings, the proposed method is designed based on the circularly polarized Koch snowflake fractal antenna with the Jerusalem cross (JC)–based frequency‐selective surface (FSS) and Schottky diode–based rectifiers for RF energy harvesting applications at the resonance frequency of 5.8 GHz. The electromagnetic energy from the environment can effectively captured using a proposed wide band and high gain antenna designed using a Koch snowflake array based on FSSs. Flame Retardant‐4 (FR‐4) material has good dielectric qualities for electronics, and it is employed as the dielectric substrate in this model; copper serves as the ground plane. The squid game optimizer (SGO) determines the ideal outer snowflake dimensions by maximizing the resonance frequency in order to achieve high gain. The optimally selected outer snowflake length and width are 40 and 23.09 mm. The designed antenna model uses a rectifier based on Schottky diodes for RF energy harvesting applications, which involves converting electromagnetic waves into direct current. The fractal antenna model and RF energy harvesting are designed and simulated using the ANSYS HFSS and Matlab RF toolbox. The model is used to evaluate the antenna's performance by concentrating on gain radiation patterns, S11, and voltage standing wave ratio (VSWR). The Koch snowflake fractal antenna, which uses a JC–based FSS, has been measured for performance at 5.8‐GHz frequency; the values obtained for impedance bandwidth, gain, S11, and VSWR are 7.61%, 9.962 dB, −33 dB, and 1.01, respectively. The analysis of the experimental data demonstrates that the Koch snowflake fractal antenna, which is being proposed for energy harvesting applications, outperforms several other existing designs in terms of effectiveness.

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Advancements and Challenges in Antenna Design and Rectifying Circuits for Radio Frequency Energy Harvesting

Odiamenhi,

Jahanbakhsh Basherlou,

Hwang See

et al. 2024

Sensors

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The proliferation of smart devices increases the demand for energy-efficient, battery-free technologies essential for sustaining IoT devices in Industry 4.0 and 5G networks, which require zero maintenance and sustainable operation. Integrating radio frequency (RF) energy harvesting with IoT and 5G technologies enables real-time data acquisition, reduces maintenance costs, and enhances productivity, supporting a carbon-free future. This survey reviews the challenges and advancements in RF energy harvesting, focusing on far-field wireless power transfer and powering low-energy devices. It examines miniaturization, circular polarization, fabrication challenges, and efficiency using the metamaterial-inspired antenna, concentrating on improving diode nonlinearity design. This study analyzes key components such as rectifiers, impedance matching networks, and antennas, and evaluates their applications in biomedical and IoT devices. The review concludes with future directions to increase bandwidth, improve power conversion efficiency, and optimize RF energy harvesting system designs.

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Optimization Design Methodology of Broadband or Multiband Antenna for Rf Energy Harvesting Applications

Cited by 3 publications

References 35 publications

Optimal Design of a Circularly Polarized Antenna for Lte Bands 42/43 Applications

Optimal Design of a Circularly Polarized Antenna for Lte Bands 42/43 Applications

Design of Circularly Polarized Koch Snowflake Fractal Antenna With Schottky Band Diode Rectifiers for RF Energy Harvesting Applications

Advancements and Challenges in Antenna Design and Rectifying Circuits for Radio Frequency Energy Harvesting

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