Dual Property of Mu-near zero to Epsilon-near Zero Material

In this paper, a mu-near-zero (MNZ) material is theoretically demonstrated to have a dual property of an epsilon-near-zero (ENZ) material, such as narrow channel tunneling and a zero transmitted angle. In order for an electromagnetic wave to transmit through arbitrarily-shaped subwavelength narrow c...

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Veröffentlicht in:Journal of the Korean Physical Society 2010, 57(1), , pp.51-54
1. Verfasser: Lee, Jeong-Hae
Format: Artikel
Sprache:eng
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Zusammenfassung:In this paper, a mu-near-zero (MNZ) material is theoretically demonstrated to have a dual property of an epsilon-near-zero (ENZ) material, such as narrow channel tunneling and a zero transmitted angle. In order for an electromagnetic wave to transmit through arbitrarily-shaped subwavelength narrow channel filled with an ENZ or MNZ material, both a proper boundary and a proper geometry of the narrow channel are required. These conditions turn out to have a duality relation between the ENZ and the MNZ materials. As an application of zero transmitted angle through a MNZ material, a X-band E-plane sectoral horn, which has improved directivity and which uses a MNZ material slab with a plasma frequency of 9.34 GHz, is designed. The results show that the directivity of the E-plane sectoral horn is increased by 2.59 dB when a MNZ material slab is inserted at the horn aperture. KCI Citation Count: 1
ISSN:0374-4884
1976-8524
DOI:10.3938/jkps.57.51