CST – Computer Simulation Technology

Title:
Experimental Demonstration of a Millimeter-Wave Metallic ENZ Lens Based on the Energy Squeezing Principle
Author(s):
Víctor Torres, Bakhtiyar Orazbayev, Víctor Pacheco-Peña,Jorge Teniente, Miguel Beruete, Miguel Navarro-Cía,Mario Sorolla Ayza, Nader Engheta
Source:
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Vol./Issue/Date:
VOL. 63, NO. 1, JANUARY 2015
Year:
2015
Page(s):
pp 231 - 239
Keywords:
Epsilon-near-zero, energy squeezing, metallic lenses, metamaterials, millimeter wave devices
Abstract:
The performance of an epsilon-near zero (ENZ) plano-concave lens is experimentally demonstrated and verified at the D-band of the millimeter-waves. The lens is comprised of an array of narrow metallic waveguides near cut-off frequency, which effectively behaves as an epsilon-near-zero medium at 144 GHz. A good matching with free space is achieved by exploiting the phenomenon of energy squeezing and a clear focus with a transmission enhancement of 15.9 dB is measured. The lens shows good radiation properties with a directivity of 17.6 dBi and low cross-polar components of dB. All results are supported by numerical simulations.
Document:

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