caa a22 4500 463215885 CHVBK 20180405153156.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s00339-006-3818-3 doi (NATIONALLICENCE)springer-10.1007/s00339-006-3818-3 An approach for small omnidirectional microstrip antennas based on the backward waves of double negative metamaterials [Elektronische Daten] [M.F. Wu, F.Y. Meng, Q. Wu, J. Wu, J.C. Lee] In this paper, a small omnidirectional microstrip antenna (MSA) is proposed based on a compact double negative (DNG) metamaterial, which is constructed by modified split ring resonators (MSRRs) and metal strips. First, the backward wave property of the DNG slab is investigated and illustrated by full-wave simulations. It is shown that the slab can exhibit double negative parameters and support backward wave in a broadband of 8.45GHz∼11.05GHz, so the existence of the DNG band is proven. Then the DNG unit cells are stacked and embedded into a host substrate to construct a phase-compensating substrate for the small MSA. By using the modified transmission line model (MTLM) and 3D full-wave simulation, a small MSA is modeled and characterized. Results show that the presence of the DNG fillings can indeed greatly reduce the physical dimensions from 0.5λ to 0.17λ, while its farfield pattern is significantly different from that of a conventional half-wave-length MSA. Lastly, the E-field distributions of the small MSA and a conventional half-wave-length MSA are contrasted and discussed to explain the functional mechanism of the small omnidirectional SMA. Springer-Verlag, 2007 Wu M.F. School of Electronics and Information Technology, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, P.R. China aut Meng F.Y. School of Electronics and Information Technology, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, P.R. China aut Wu Q. School of Electronics and Information Technology, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, P.R. China aut Wu J. China Research Institute of Radiowave Propagation, 453000, Xinxiang, Henan, P.R. China aut Lee J.C. School of Electronic Engineering, Kwangwoon University, 139-137, Seoul, Korea aut Applied Physics A Springer-Verlag 87/2(2007-05-01), 193-198 0947-8396 87:2<193 2007 87 339 https://doi.org/10.1007/s00339-006-3818-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-006-3818-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu M.F. School of Electronics and Information Technology, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, P.R. China aut NATIONALLICENCE 700 1- Meng F.Y. School of Electronics and Information Technology, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, P.R. China aut NATIONALLICENCE 700 1- Wu Q. School of Electronics and Information Technology, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, P.R. China aut NATIONALLICENCE 700 1- Wu J. China Research Institute of Radiowave Propagation, 453000, Xinxiang, Henan, P.R. China aut NATIONALLICENCE 700 1- Lee J.C. School of Electronic Engineering, Kwangwoon University, 139-137, Seoul, Korea aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 87/2(2007-05-01), 193-198 0947-8396 87:2<193 2007 87 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer