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A compact size multiband printed monopole antenna with triple sense circular polarization for wireless applications



  1. Department of Electronic and Communication Engineering,Cankaya University, Eskisehir Yolu29. km, Etimesgut, Ankara, 06790, Turkey
  2. Microwave Research Group, Department of Electrical Engineering, University of Technology,Baghdad,Iraq
  3. Centre of intelligence antenna and Radio systems, Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Canada


A penta-band printed monopole antenna based on a hexagonal open loop shape is presented in this paper. The proposed antenna demonstrated a variety in the polarization. Antenna is loaded with some parts and two stair-shaped slits is created in the partial ground plane for enhancing the multiband behavior. A circularly polarized (CP) waves are generated at a three bands with impedance bandwidths (IBWs) of 10.62%, 33.65% and 8.61% centered at 1.60, 5.20 and 6.50 GHz and 3-dB axial ratio bandwidths (ARBWs) of 9.10%, 7.58%, and 4.41% respectively. While a linearly polarized (LP) waves at the other two bands over ranges (2.51-2.64GHz) and (3.10-3.31GHz). Besides, the proposed antenna showed a different sense of circular polarization; right hand, left hand, and right hand. The antenna is simulated and fabricated on an FR-4 (glass epoxy) substrate with relative permittivity of 4.6, thickness of 1.6 mm and a loss tangent of 0.02.The properties of multiband and circular polarization, makes the proposed antenna candidates for many modern wireless applications..


Multiband antenna, Circular polarization, Printed antenna, Triple sense,Axial ratio.

Submitted at: Sept. 15, 2019
Accepted at: Oct. 22, 2020


M. AL-MIHRAB, A. SALIM, H. AL-SAEDI, J. ALI, A compact size multiband printed monopole antenna with triple sense circular polarization for wireless applications, Journal of Optoelectronics and Advanced Materials Vol. 22, Iss. 9-10, pp. 483-494 (2020)