New Compact antenna based on simplified CRLH-TL for UWB wireless communication systems Articles uri icon

publication date

  • January 2016

start page

  • 217

end page

  • 225

issue

  • 3

volume

  • 26

International Standard Serial Number (ISSN)

  • 1096-4290

abstract

  • This letter presents the experimental results of a novel planar antenna design which is synthesized using simplified composite left/right-handed transmission-line (SCRLH-TL), which is a version of a conventional composite left/right handed-transmission-lines (CRLH-TL), however, with the omission of shunt-inductance in the unit-cell. SCRLH-TL exhibits a right-handed response with nonlinear dispersion properties and a smooth Bloch-impedance distribution. Arranged within the inner slot of the antenna are three smaller rectangular patch radiators. Each patch radiator is embedded with an E-shaped notch, and located in the antenna conductor is a larger E-shaped notch next to the 50-¿ termination. The E-shaped notches constitute SCRLH-TL property. The gap in the slot between the smaller patches and the conductor next to the larger E-shaped notch determines the impedance bandwidth of the antenna. The dimensions of the smaller patches determine the radiation characteristics of the antenna. The antenna is excited using a conductor-backed coplanar waveguide transmission-line. The antenna covers a bandwidth of 7.3 GHz between 0.7 GHz and 8GHz, which corresponds to 167.81%. In this band, the antenna resonates at 4.75 GHz and 7 GHz; the gain and radiation efficiency at these frequencies are 4 dBi - 80% and 3.6 dBi - 73%, respectively. The antenna's performance was validated through measurement. The antenna has dimensions of 0.0504¿0 × 0.0462¿0 × 0.0018¿0, where ¿0 is free-space wavelength at 700 MHz. © 2016 Wiley Periodicals, Inc.

keywords

  • coplanar waveguide (cpw) patch antenna simplified composite right/left-handed transmission line (scrlh) ultra-wideband antenna wireless communication systems bandwidth broadband networks coplanar waveguides directional patterns (antenna) dispersion (waves) electric impedance electric lines microstrip antennas microwave antennas radiators slot antennas wireless telecommunication systems composite right/left-handed transmission lines conductor backed coplanar waveguides coplanar wave-guide (cpw) free-space wavelengths radiation characteristics ultra wide-band antennas uwb wireless communications wireless communication system ultra-wideband (uwb)