Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Druckformat: 0040-2508
ISSN Online: 1943-6009

Volumes:
Volumen 78, 2019 Volumen 77, 2018 Volumen 76, 2017 Volumen 75, 2016 Volumen 74, 2015 Volumen 73, 2014 Volumen 72, 2013 Volumen 71, 2012 Volumen 70, 2011 Volumen 69, 2010 Volumen 68, 2009 Volumen 67, 2008 Volumen 66, 2007 Volumen 65, 2006 Volumen 64, 2005 Volumen 63, 2005 Volumen 62, 2004 Volumen 61, 2004 Volumen 60, 2003 Volumen 59, 2003 Volumen 58, 2002 Volumen 57, 2002 Volumen 56, 2001 Volumen 55, 2001 Volumen 54, 2000 Volumen 53, 1999 Volumen 52, 1998 Volumen 51, 1997

Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v76.i19.10
pages 1681-1688

DEFECTIVE MODES IN AN ANISOTROPIC WIRE METAMATERIAL IN THE MICROWAVE RANGE

L. I. Ivzhenko
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine
D. I. Yudina
V. Karazin National University of Kharkiv, 4 Svobody Square, Kharkiv, 61077, Ukraine
S. I. Tarapov
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine; Kharkiv National University of Radio Electronics 14, Nauka Av, Kharkiv 61166, Ukraine; V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61077, Ukraine

ABSTRAKT

At present, considerable attention is focused at investigating defective modes that arise as a result of disturbance of the periodicity in photonic crystals. This interest is provoked by the fact that disturbances of periodicity in nature occur more frequently than the perfect periodicity. The available to date results of theoretical investigations of the defective modes in artificial media (metamaterials) do not provide a complete description of this effect. In the paper, the spectral properties of an anisotropic wire metamaterial with a spatial defect are analyzed within the microwave frequency range. Defective modes have been experimentally detected to exist in the forbidden zone of the transmission spectrum of the anisotropic wire metamaterial with a defect. The positions of the transmission peaks corresponding to appearance of defective modes are analyzed in dependence on the frequency and thickness of the defective layer. The measurement results have been found to be in good agreement with numerical calculations. It is shown that the peaks associated with the defective modes shift toward lower-frequency range as the defective layer thickness is increased. Results of the study can be used in designing various telecommunication devices, including filters, couplers, attenuators, electromagnetic sensors, lenses with sub-wavelength resolution, small-size antennas, objects that are "invisible" within a certain frequency range, etc.