A Pattern Reconfigurable Antenna Using Eight-Dipole Configuration for Energy Harvesting Applications

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...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-10, Vol.23 (20), p.8451
Main Authors: Aboualalaa, Mohamed, Mohamed, Hesham A., Alghamdi, Thamer A. H., Alathbah, Moath
Format: Article
Language:English
Subjects:
Antennas
Antennas (Electronics)
Communication
Design
dipole antenna
Electric power production
electronically steering
Energy
energy harvesting
Internet of Things
Network switches
Radiation
reconfigurable antenna
RF switch matrix
Satellite communications
Simulation
Wireless communications
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Summary: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.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23208451