xu xinhe, wen guangjun, gan yuehong, et al. Evanescent waves and imaging properties in positive-refractive-index transmission-line slab excited by embedded source[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
xu xinhe, wen guangjun, gan yuehong, et al. Evanescent waves and imaging properties in positive-refractive-index transmission-line slab excited by embedded source[J]. High Power Laser and Particle Beams, 2009, 21.
xu xinhe, wen guangjun, gan yuehong, et al. Evanescent waves and imaging properties in positive-refractive-index transmission-line slab excited by embedded source[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
xu xinhe, wen guangjun, gan yuehong, et al. Evanescent waves and imaging properties in positive-refractive-index transmission-line slab excited by embedded source[J]. High Power Laser and Particle Beams, 2009, 21.
A novel approach for subwavelength imaging is proposed using a positive-refractive-index(PRI) media slab lens excited by an embedded source. Both evanescent wave and propagating voltage wave distribution are analyzed inside and outside a PRI media slab, which is surrounded by a negative-refractive-index (NRI) material. The PRI and NRI materials consist of two -dimensional unloaded transmission line(TL) and inductor, capacitor (L,C) loaded TL networks, respectively. The microwave-circuit simulation and numerical simulation results show that there is strong voltage amplitudes near the two interfaces of the slab due to the growth of evanescent field in the slab. The results confirm that evanescent waves are restored at the focus by the proposed PRI TL lens, thus enhancing the resolution of th