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Waves in Random and Complex Media Volume 31, 2021 - Issue 6
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Original Articles

Enhancement of directivity of dipole antenna by a complex conjugate cylinder

Muhammad Kamrana Research in Modeling and Simulation Group (RIMS), Department of Physics, COMSATS University Islamabad, Islamabad, PakistanORCID Iconhttps://orcid.org/0000-0003-0191-865XView further author information
ORCID Icon,
Ahsan Illahia Research in Modeling and Simulation Group (RIMS), Department of Physics, COMSATS University Islamabad, Islamabad, PakistanCorrespondence[email protected]
[email protected]
ORCID Iconhttps://orcid.org/0000-0002-0603-3263View further author information
ORCID Icon,
Siraj-ul-Islam Ahmada Research in Modeling and Simulation Group (RIMS), Department of Physics, COMSATS University Islamabad, Islamabad, PakistanView further author information
,
Majeed A. S. Alkanhalb Department of Electrical Engineering, King Saud University, Riyadh, Saudi ArabiaORCID Iconhttps://orcid.org/0000-0003-3673-0411View further author information
ORCID Icon,
Abdul Ghaffarc Department of Physics, University of Agriculture Faisalabad, Faisalabad, PakistanView further author information
&
Yasin Khanb Department of Electrical Engineering, King Saud University, Riyadh, Saudi ArabiaView further author information
Pages 1367-1377 | Received 17 Aug 2018, Accepted 26 Aug 2019, Published online: 12 Sep 2019
 
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ABSTRACT

The directional properties of a dipole antenna are studied by placing it in the vicinity of a complex conjugate cylinder. An exact formal solution for the fields is obtained via the differential equation approach. The far field approximation is obtained by asymptotic analysis. The variation of radiation patterns with the imaginary part of permittivity and/or permeability is observed and the results are compared with the lossless dielectric. It is observed that the directivity of the antenna is enhanced in the presence of the cylinder.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The authors would like to extend their sincere appreciation to the Deanship of Scientific Research (DSR) at King Saud University for its funding of this research through the Research Group Project no RG-1436-001.

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