首页|A High-Gain Vivaldi Antenna Loaded with Metasurface for Broadband Applications
A High-Gain Vivaldi Antenna Loaded with Metasurface for Broadband Applications
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NETL
NSTL
Applied Computational Electromagnetics Soc
In this article, a Vivaldi antenna with broadbandwidth and high gain is proposed. The proposedantenna consists of a coplanar Vivaldi antenna (CVA)configuration etched with two rhombus slots at both sidesof the radiation arm to improve bandwidth and gainat the low frequencies as well as maintaining antennaminiaturization. A compact broadband metasurface isloaded in the dielectric region between the two exponentiallytapered lines to improve radiation performancein a wide frequency range without increasing antennasize. The antenna has been fabricated and measured,obtaining 1.27-9.4 GHz bandwidth covering L/S/C/Xand ultra-wideband (UWB) lower bands. The measuredgain ranges from 3 dBi to 9.67 dBi. With a miniaturizedsize of 100×100×1 mm~3, good directional radiation patternand high gain in the whole working band, the proposedantenna is a good candidate for the applications inmulti-band coverage systems.
NETL
NSTL
Applied Computational Electromagnetics Soc
