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International Journal of Antennas and Propagation
Volume 2016, Article ID 6184959, 5 pages
http://dx.doi.org/10.1155/2016/6184959
Research Article

Observation of Zenneck-Like Waves over a Metasurface Designed for Launching HF Radar Surface Wave

1ONERA-The French Aerospace Lab, 91123 Palaiseau Cedex, France
2Sorbonne Universités, UPMC University of Paris 06, UR2, L2E, 75005 Paris, France

Received 4 May 2016; Revised 2 September 2016; Accepted 18 September 2016

Academic Editor: Weimin Huang

Copyright © 2016 Florent Jangal et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Since the beginning of the 20th century a controversy has been continuously revived about the existence of the Zenneck Wave. This wave is a theoretical solution of Maxwell’s equations and might be propagated along the interface between the air and a dielectric medium. The expected weak attenuation at large distance explains the constant interest for this wave. Notably in the High Frequency band such a wave had been thought as a key point to reduce the high attenuation observed in High Frequency Surface Wave Radar. Despite many works on that topic and various experiments attempted during one century, there is still an alternation of statements between its existence and its nonexistence. We report here an experiment done during the optimisation of the transmitting antennas for Surface Wave Radars. Using an infrared method, we visualize a wave having the structure described by Zenneck above a metasurface located on a dielectric slab.