CST – Computer Simulation Technology

Title:
A True Metasurface Antenna
Author(s):
Mohamed El Badawe, Thamer S. Almoneef, Omar M. Ramahi
Vol./Issue/Date:
1st January 0001
Year:
2016
Page(s):
pp 1- 8
Abstract:
We present a true metasurface antenna based on electrically-small resonators. The resonators are placed on a flat surface and connected to one feed point using corporate feed. Unlike conventional array antennas where the distance between adjacent antennas is half wavelength to reduce mutual coupling between adjacent antennas, here the distance between the radiating elements is electrically very small to affect good impedance matching of each resonator to its feed. A metasurface antenna measuring 1.2?× 1.2? and designed to operate at 3GHz achieved a gain of 12 dBi. A prototype was fabricated and tested showing good agreement between numerical simulations and experimental results. Through numerical simulation, we show that the metasurface antenna has the ability to provide beam steering by phasing all the resonators appropriately.
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