A metasurfing concept is demonstrated and applied in the design of Luneburg lens antennas. Using an array of size-varying circular patches on a dielectric substrate inside a parallel-plate waveguide (PPW) structure variable surface impedance is obtained, which realizes an equivalent refraction index as that of a Luneburg lens. The obtained lens has good bandwidth characteristics and significant fabrication advantages with respect to conventional dielectric lenses. Based on this PPW lens, an H-plane antenna has been designed and simulated.
Bosiljevac, M., Casaletti, M., Caminita, F., Sipus, Z., Maci, S. (2012). Non-Uniform Metasurface Luneburg Lens Antenna Design. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 60(9), 4065-4073 [10.1109/TAP.2012.2207047].
Non-Uniform Metasurface Luneburg Lens Antenna Design
Casaletti, Massimiliano;Caminita, Francesco;Maci, Stefano
2012-01-01
Abstract
A metasurfing concept is demonstrated and applied in the design of Luneburg lens antennas. Using an array of size-varying circular patches on a dielectric substrate inside a parallel-plate waveguide (PPW) structure variable surface impedance is obtained, which realizes an equivalent refraction index as that of a Luneburg lens. The obtained lens has good bandwidth characteristics and significant fabrication advantages with respect to conventional dielectric lenses. Based on this PPW lens, an H-plane antenna has been designed and simulated.
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https://hdl.handle.net/11365/977317
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