A Pattern Reconfigurable Antenna Using Eight-Dipole Configuration for Energy Harvesting Applications
Author:
Aboualalaa Mohamed1, Mohamed Hesham A.1ORCID, Alghamdi Thamer A. H.23ORCID, Alathbah Moath4ORCID
Affiliation:
1. Microstrip Department, Electronics Research Institute, Cairo 11843, Egypt 2. Wolfson Centre for Magnetics, School of Engineering, Cardiff University, Cardiff CF24 3AA, UK 3. Electrical Engineering Department, School of Engineering, Albaha University, Albaha 65779, Saudi Arabia 4. Department of Electrical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
Abstract
A pattern reconfigurable antenna, composed of eight elements, is proposed for energy harvesting applications. Pattern reconfigurable antennas are a promising technique for harvesting from different wireless sources. The radiation pattern of the proposed antenna can be steered electronically using an RF switch matrix, covering an angle range from 0 to 360 degrees with a step size of 45 degrees. The proposed antenna primarily consists of an eight-dipole configuration that shares the same excitation. Each dipole is excited using a balun comprising a quarter-wavelength grounded stub and a quarter-wavelength open-circuit stub. The proposed antenna operates in the frequency range of 4.17 to 4.5 GHz, with an impedance bandwidth of 7.6%. By switching between the different switches, the antenna can be steered with a narrower rotational angle. In addition, the antenna can work in an omnidirectional mode when all switches are in the ON state simultaneously. The results demonstrate a good agreement between the numerical and experimental findings for the reflection coefficient and radiation characteristics of the proposed reconfigurable antenna.
Funder
King Saud University, Riyadh, Saudi Arabia
Subject
Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry
Reference27 articles.
1. Pattern and frequency reconfigurable monopole disc antenna using PIN diodes and MEMS switches;Elsadek;Microw. Opt. Technol. Lett.,2014 2. Yahya, M.S., Soeung, S., Singh, N.S.S., Yunusa, Z., Chinda, F.E., Rahim, S.K.A., Musa, U., Nor, N.B.M., Sovuthy, C., and Abro, G.E.M. (2023). Triple-Band Reconfigurable Monopole Antenna for Long-Range IoT Applications. Sensors, 23. 3. Al-Alaa, M.A., Elsadek, H.A., Abdallah, E.A., and Hashish, E.A. (2014, January 6–12). PIFA frequency reconfigurable antenna. Proceedings of the 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), Memphis, TN, USA. 4. A Frequency-Reconfigurable Planar Slot Antenna Using S-PIN Diode;Jin;IEEE Antennas Wirel. Propag. Lett.,2022 5. Design and analysis of reconfigurable fractal antenna with RF-switches on a flexible substrate for X-band applications;Sailaja;Analog. Integr. Circuits Signal Process.,2021
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