Mechanical 144 GHz beam steering with all-metallic epsilon-near-zero lens antenna

作者：Pacheco Pena V^*; Torres V; Orazbayev B; Beruete M; Navarro Cia M; Sorolla M; Engheta N

来源：Applied Physics Letters, 2014, 105(24): 243503.

DOI：10.1063/1.4903865

An all-metallic steerable beam antenna composed of an epsilon-near-zero (ENZ) metamaterial lens is experimentally demonstrated at 144 GHz (lambda(0) = 2.083 mm). The ENZ lens is realized by an array of narrow hollow rectangular waveguides working just near and above the cut-off of the TE10 mode. The lens focal arc on the xz-plane is initially estimated analytically as well as numerically and compared with experimental results demonstrating good agreement. Next, a flange-ended WR-6.5 waveguide is placed along the lens focal arc to evaluate the ENZ-lens antenna steerability. A gain scan loss below 3 dB is achieved for angles up to +/- 15 degrees.

• 出版日期2014-12-15