CST – Computer Simulation Technology

Enhanced Millimeter Wave Transmission Through Quasioptical Subwavelength Perforated Plates
Miguel Beruete, Mario Sorolla, I. Campillo, J. S. Dolado, Luis Martín-Moreno, J. Bravo-Abad, F. J. García-Vidal
IEEE Transactions on Atennas and Propagation
Vol. 53, No. 6, June 2005
1897 - 1903
Extraordinary transmission, metamaterials, millimeter waves, perforated plates, quasioptics, subwavelength
In this paper, we show that the phenomenon of extraordinary transmission through arrays of subwavelength holes, present in the optical regime, is also present in the millimeter wave range. After presentation of the theoretical foundations of the enhanced transmission, measurements of the transmission response have been performed on different samples by using a millimeter wave quasioptical vector network analyzer in the range between 45and 110 GHz. The prototypes have been fabricated in Aluminum plates with several thickness and different hole diameters drilled by using a laser machine. Good agreement between theory and experiment is obtained, with clear signals of the existence of resonant transmission at wavelengths close to the period of the array. Possible applications in frequency selective surfaces and near-field imaging are envisaged.

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