Wideband high‐gain antenna using metamaterial superstrate with the zero refractive index

• DOI: 10.1002/mop.24469
• Publication Date: 2009-05-13T20:02:15Z
• Authors: Jeongho Ju; Dongho Kim; Wangjoo J. Lee; Jaeick I. Choi
• Keywords: Flatness (cosmology); Metamaterial antenna; Antenna gain; Wideband

Abstract A high‐gain antenna using a single layer metamaterial (MTM) superstrate with zero refractive index ( n ) is proposed. To enhance the magnitude and flatness property of gain at same time, effectively behavior used, which gathers wave emitted from microstrip patch collimates it toward normal direction antenna. Both simulation measurement results provide that realized proposed increased by about 5 dB no more than 1.5 in predicted frequency band, where MTM designed to have refraction. Consequently, high flat can be easily obtained our superstrate. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1973–1976, 2009; Published online InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24469