A Miniaturized Arc Shaped Near Isotropic Self-Complementary Antenna for Spectrum Sensing Applications

This paper presents the design of an arc-shaped near-isotropic self-complementary antenna for spectrum sensing application. An arc-shaped dipole with horizontal and vertical arms is used to achieve a near isotropic radiation pattern. The radiation pattern improved by adjusting the horizontal and ver...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-01, Vol.23 (2), p.927
Main Authors: Qureshi, Ubaid Ur Rahman, Basir, Shahid, Subhan, Fazal, Mohsan, Syed Agha Hassnain, Khan, Muhammad Asghar, Marey, Mohamed, Mostafa, Hala
Format: Article
Language:English
Subjects:
Antenna gain
Antenna radiation patterns
Antennas
Bandwidths
Design
Dipoles
Drones
Efficiency
Electric Impedance
Internet of Things
IoFT
isotropic pattern
Permittivity
Radiation
Records
self-complementary
solid angle
Spectrum allocation
spectrum sensing
Unmanned aerial vehicles
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Summary:This paper presents the design of an arc-shaped near-isotropic self-complementary antenna for spectrum sensing application. An arc-shaped dipole with horizontal and vertical arms is used to achieve a near isotropic radiation pattern. The radiation pattern improved by adjusting the horizontal and vertical arm lengths. Simulated and experimental results show that the proposed antenna has an impedance bandwidth of 146% (2.4-18.4 GHz) for VSWR ≤ 2 with a good radiation pattern. In order to quantify the antenna performance, antenna gain variation, bandwidth, efficiency, and size have been compared with previously reported designs. It is shown that the proposed arc-shaped antenna can achieve nearly isotropic radiation patterns with a maximum radiation efficiency of 92%. The isotropic performance of the antenna has been characterized by observing the radiation pattern and solid angle. The FR4 substrate is used as a dielectric with relative permittivity 4.4 and loss tangent of 0.02. (εr = 4.4, = 1.6 mm) The simulated and measured results are in good comparison, and the proposed design is a suitable candidate for spectrum sensing.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23020927