Compact multiband antenna employing wideband dual ZOR for mobile handset applications

Zhang, 2011 Sanchez-Hernandez, 2008 Engheta, 2006 Caloz, 2006 Antoniades, 2008, A folded-monopole model for electrically small NRI-TL metamaterial antennas, IEEE Antennas Wirel. Propag. Lett., 7, 425, 10.1109/LAWP.2008.2008773 Park, 2007, Epsilon negative zeroth-order resonator antenna, IEEE Trans. Antennas Propag., 55, 3710, 10.1109/TAP.2007.910505 C.J. Lee, K.M.K.H. Leong, T. Itoh, Compact dual-band antenna using an anisotropic metamaterial, in: Proc. Eur. Microwave Conf. 2006, pp. 1044–1047. Qureshi, 2005, A compact and low-profile metamaterial ring antenna with vertical polarization, IEEE Antennas Wirel. Propag. Lett., 4, 333, 10.1109/LAWP.2005.857041 A. Sanada, M. Kimura, I. Awai, C. Caloz, T. Itoh, A planar zeroth-order resonator antenna using a left-handed transmission line, in: Proc. Eur. Microwave Conf. 2004, pp. 1341–1344. A. Sanada, C. Caloz, T. Itoh, Novel zeroth-order resonance in composite right/left-handed transmission line resonators, in: Proc. Asia-Pacific Microwave Conf, vol. 3, 2003, pp. 1588–1591. J.G. Lee, J.H. Lee, Enhanced bandwidth of dual ZOR antenna for multiband applications, in: 2016 10th European Conference on Antennas and Propagation, EuCAP, 2016, pp. 1–3. Li, 2013, A novel compact multiband antenna employing dual-band CRLH-TL for smart mobile phone application, IEEE Antennas Wirel. Propag. Lett., 12, 1688, 10.1109/LAWP.2013.2295915 Li, 2013, Dual zeroth-order resonance antennas with low mutual coupling for MIMO communications, IEEE Antennas Wirel. Propag. Lett., 12, 1692, 10.1109/LAWP.2013.2294686 Kim, 2012, Study on an epsilon-negative zeroth-order resonator antenna properties for mobile handsets, Microw. Opt. Technol. Lett., 54, 1066, 10.1002/mop.26673 Lee, 2011, Small antennas based on CRLH structures: concept, design, and applications, IEEE Antennas Propag. Mag., 53, 10, 10.1109/MAP.2011.5949321 Ji, 2010, Bandwidth enhancement of metamaterial antennas based on composite right/left-handed transmission line, IEEE Antennas Wirel. Propag. Lett., 9, 36, 10.1109/LAWP.2010.2041628 Niu, 2013, Epsilon negative zeroth- and first-order resonant antennas with extended bandwidth and high efficiency, IEEE Trans. Antennas Propag., 61, 5878, 10.1109/TAP.2013.2281357