TY - JOUR
T1 - Performance enhancement of square-ring antennas exploiting surface-wave metasurfaces
AU - Alharbi, Mohammed S.
AU - Balanis, Constantine A.
AU - Birtcher, Craig R.
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - This letter proposes a technique to enhance the performance of a square-ring antenna by exciting surface waves. An asymmetrical metasurface (MS) is utilized to control the surface-wave resonances at different planes. To excite the surface waves, various configurations have been considered, namely, square-ring element above, below, and within the MS. The latter design, with a 0.07 λo height profile, provides superior matching and gain performances compared to the others. It operates from 3.8 to 5 GHz (27% fractional bandwidth) with a stable realized gain up to 11.9 dBi in the broadside direction. A prototype of the structure, with a simple probe-feeding mechanism, was fabricated and measured. An excellent agreement was attained between the simulated and measured data.
AB - This letter proposes a technique to enhance the performance of a square-ring antenna by exciting surface waves. An asymmetrical metasurface (MS) is utilized to control the surface-wave resonances at different planes. To excite the surface waves, various configurations have been considered, namely, square-ring element above, below, and within the MS. The latter design, with a 0.07 λo height profile, provides superior matching and gain performances compared to the others. It operates from 3.8 to 5 GHz (27% fractional bandwidth) with a stable realized gain up to 11.9 dBi in the broadside direction. A prototype of the structure, with a simple probe-feeding mechanism, was fabricated and measured. An excellent agreement was attained between the simulated and measured data.
KW - Low profile
KW - Metasurface (MS) ground plane
KW - Square-ring antennas
KW - Surface-wave antenna
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U2 - 10.1109/LAWP.2019.2936020
DO - 10.1109/LAWP.2019.2936020
M3 - Article
AN - SCOPUS:85077433380
SN - 1536-1225
VL - 18
SP - 1991
EP - 1995
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 10
M1 - 8805333
ER -