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3 - Magnetoelectric Dipoles with Linear Polarization

Published online by Cambridge University Press:  23 October 2025

Kwai Man Luk
Affiliation:
City University of Hong Kong
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Summary

The development of linearly polarized magnetoelectric (ME) dipoles operated at lower microwave frequencies is reviewed. Magnetoelectric dipoles can be fabricated at low costs, as they are purely made of metal plates at a few GHz range. Designs with modified L-shaped probe feeds for various purposes are first presented. Magnetoelectric dipoles with modified dipole shapes and feeds for enabling the antennas to be d.c. grounded are summarized. The aperture coupling technique was widely applied for the designs of microstrip antennas. Magnetoelectric dipoles with aperture-coupled feeds were also proposed in the literature. Their characteristics are presented. Differentially fed ME dipoles are also reviewed. The performance of ME dipoles for MIMO systems is discussed, which is of topical interest for 5G applications. Some recent applications of linearly polarized ME dipoles in different array environments are also presented.

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References

Wong, H., A novel wideband unidirectional antenna, Ph.D. Thesis, City University of Hong Kong, November 2006.Google Scholar
Li, M. J. and Luk, K. M., A wideband circularly polarized antenna for microwave and millimeter-wave applications, IEEE Transactions on Antennas and Propagation, vol. 62, 2014, no. 4, pp. 18721879.CrossRefGoogle Scholar
Luk, K. M. and Wu, B. Q., The magneto-electric dipole: A new antenna element for wireless communications, Proceedings of the IEEE, vol. 100, 2012, no. 7, pp. 22972307.Google Scholar
Ge, L. and Luk, K. M., A low-profile magneto-electric dipole antenna, IEEE Transactions on Antennas and Propagation, vol. 60, 2012, no. 4, pp. 16841689.CrossRefGoogle Scholar
Ge, L. and Luk, K. M., A magneto-electric dipole antenna with low-profile and simple structure, IEEE Antennas and Wireless Propagation Letters, vol. 12, 2013, pp. 140142.CrossRefGoogle Scholar
Cui, X., Yang, F., Gao, M., Zhou, L., Liang, Z. and Yan, F., Wideband magnetoelectric dipole antenna with microstrip line aperture-coupled excitation, IEEE Transactions on Antennas and Propagation, vol. 65, 2017, no. 12, pp. 73507354.Google Scholar
Sun, J. and Luk, K. M., Wideband magneto-electric dipole antennas for millimeter-wave applications with microstrip line feed, Proceedings of the 2018 International Symposium on Antennas and Propagation, Busan, South Korea, 2018.Google Scholar
Liao, S. W., Xue, Q. and Xu, J. H., A differentially fed magneto-electric dipole antenna with a simple structure, IEEE Antennas and Propagation Magazine, vol. 55, 2013, no. 5, pp. 7484.CrossRefGoogle Scholar
Zhang, J., Zang, Y., Gao, Q and Liang, C., An LTE base-station magnetoelectric dipole antenna with anti-interference characteristics and its MIMO system application, IEEE Antennas and Wireless Propagation Letters, vol. 14, 2015, pp. 906909.Google Scholar
Wu, B. and Luk, K. M., A 4-port diversity antenna with high isolation for mobile communications, IEEE Transactions on Antennas and Propagation, vol. 59, 2011, no. 5, pp. 16601663.CrossRefGoogle Scholar
Ge, L. and Luk, K. M., A three-element linear magneto-electric dipole array with beamwidth reconfiguration, IEEE Antennas and Wireless Propagation Letters, vol. 14, 2015, pp. 2831.CrossRefGoogle Scholar
Hua, D., Wu, W. and Fang, D. G., The synthesis of a magneto-electric dipole linear array antenna using the element-level pattern diversity (ELPD) technique, IEEE Antennas and Wireless Propagation Letters, vol. 17, 2018, no. 6, pp. 10691072.CrossRefGoogle Scholar
Moghaddam, S. M., Zaman, A. U., Yang, J. and Glazunov, A. A., Ultrawide band tightly-coupled aperture magneto-electric dipole array over 20–40 GHz, Proceedings of the 13th European Conference on Antennas and Propagation, 2019.Google Scholar
Kaddour, S., Milbrandt, J., Menudier, C., Thevenot, M., Pouliguen, P., Potier, P. and Romier, M., Performances of magneto-electric dipoles in an antennas array with a reduced beam forming network, Proceedings of the 16th European Radar Conference, 2019, pp. 385388.CrossRefGoogle Scholar

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