Design of Compact Dual-band Fractal Monopole Antenna with Virtually Extended Ground Plane

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M. T. Yassen
H. A. Hammas
M. R. Hussan
A. J. Salim
J. K. Ali
http://orcid.org/0000-0002-6900-6844

Abstract

Achieving a particular response to serve multiple wireless applications is regarded as the primary demand in our modern age because of the considerable development of the communication devices. In this paper, a compact monopole antenna with reduced ground plane has been suggested to meet the requirements of the dual-band WLAN applications. The antenna miniaturization has been carried out in employing two techniques. Initially, the fractal geometry has been applied to the antenna radiating element. Two-sided Koch fractal curves up to the third iteration have been used to increase the path of electrical current on the surface of the radiating element which is in the form of a square with dimensions. To gain more miniaturization, the antenna ground plane has been further reduced by using different lengths of two open-ended parallel stubs to form a virtually extended ground plane. This supportive technique has been adopted as a tuning means to control the path of the electrical currents exciting the resulting resonances. The proposed antenna and has been printed on an FR-4 substrate with a thickness of 1.6 mm and 4.4 relative dielectric constant and is fed by 50-ohm microstrip feed line. The resulting antenna dimensions are of about 19.1 mm × 19.1 mm. A parametric study has been carried out, and the results reveal that the proposed antenna offers a dual-band performance with a considerable ratio of resonant frequencies covering the existing 2.4/5.2/5.8 GHz WLAN applications, besides many other communication services.

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How to Cite
Yassen, M., Hammas, H., Hussan, M., Salim, A., & Ali, J. (2018). Design of Compact Dual-band Fractal Monopole Antenna with Virtually Extended Ground Plane. Advanced Electromagnetics, 7(4), 19-26. https://doi.org/10.7716/aem.v7i4.725
Section
Research Articles

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