Document Type
Article
Rights
Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence
Abstract
A wideband circularly-polarized printed antenna is proposed, which employs an asymmetrical dipole and a slit in the ground plane which are fed by an L-shaped microstrip feedline using a via. The proposed antenna geometry is arranged so that the orthogonal surface currents, which are generated in the dipole, feedline and ground plane, have the appropriate phase to provide circular polarization. A parametric study of the key parameters is made and the mechanism for circular polarization is described. The measured results show that the impedance bandwidth is approximately 1.34 GHz (2.45 GHz to 3.79 GHz) and the 3 dB axial ratio bandwidth is approximately 770 MHz (2.88 GHz to 3.65 GHz) which represent fractional bandwidths of approximately 41% and 23%, respectively, with respect to a centre frequency of 3.3 GHz.
DOI
https://doi.org/10.1109/TAP.2010.2055776
Recommended Citation
Bao, X., Amman, M., McEvoy, P. (2010) Microstrip-fed Wideband Circularly Polarized Printed Antenna. IEEE Transactions on Antennas & Propagation, vol. 58, no. 10, pp 3150-3156. doi:10.1109/TAP.2010.2055776
Funder
Science Foundation Ireland
Included in
Electrical and Electronics Commons, Electromagnetics and Photonics Commons, Systems and Communications Commons
Publication Details
IEEE Transactions on Antennas & Propagation, 58, (10), pp 3150-3156, 2010.