Title :
Miniaturized Dual-Band CPW-Fed Antennas Loaded With U-Shaped Metamaterials
Author :
Saghanezhad, Seyed Amir Hossein ; Atlasbaf, Zahra
Author_Institution :
Electr. Eng. Dept., Tarbiat Modares Univ., Tehran, Iran
Abstract :
New dual band miniaturized planar antennas loaded with 4-cell metamaterial is presented. The structure of the antenna consists of a coplanar waveguide at input, microstrip line, patch, metamaterial loaded substrate under patch, and back conductor. For simpler construction procedure, U-shaped and inverted U-shaped metamaterial loaded substrate under the patch is made in two layers. At the first band, these antennas work as a wideband monopole antenna with about 35% miniaturization compared to the folded monopole antenna, and at the second band as a wideband patch antenna with about 77% miniaturization compared to the conventional patch antenna.
Keywords :
broadband antennas; coplanar waveguide components; coplanar waveguides; metamaterial antennas; microstrip lines; monopole antennas; multifrequency antennas; planar antennas; U-shaped metamaterials; back conductor; coplanar waveguide; dual band miniaturized planar antennas; metamaterial loaded substrate under patch; microstrip line; miniaturized dual-band CPW-fed antennas; wideband monopole antenna; wideband patch antenna; Antenna measurements; Antenna radiation patterns; Loaded antennas; Metamaterials; Microstrip antennas; Patch antennas; Metamaterial (MTM); miniaturized antenna; monopole antenna; patch antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2376554
