Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지
DOI QR코드

DOI QR Code

The Gain Estimation of a Fabry-Perot Cavity (FPC) Antenna with a Finite Dimension

  • Kwon, Taek-Sun (School of Electronic and Electrical Engineering, Hongik University) ;
  • Lee, Jae-Gon (Metamaterial Electronic Device Research Center, Hongik University) ;
  • Lee, Jeong-Hae (School of Electronic and Electrical Engineering, Hongik University)
  • Received : 2017.09.08
  • Accepted : 2017.10.12
  • Published : 2017.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we have presented an equation for estimating the gain of a Fabry-Perot cavity (FPC) antenna with a finite dimension. When an FPC antenna has an infinite dimension and its height is half of a wavelength, the maximum gain of that FPC antenna can be obtained theoretically. If the FPC antenna does not have a dimension sufficient for multiple reflections between a partially reflective surface (PRS) and the ground, its gain must be less than that of an FPC antenna that has an infinite dimension. In addition, the gain of an FPC antenna increases as the dimension of a PRS increases and becomes saturated from a specific dimension. The specific dimension where the gain starts to saturate also gets larger as the reflection magnitude of the PRS becomes closer to one. Thus, it would be convenient to have a gain equation when considering the dimension of an FPC antenna in order to estimate the exact gain of the FPC antenna with a specific dimension. A gain versus the dimension of the FPC antenna for various reflection magnitudes of PRS has been simulated, and the modified gain equation is produced through the curve fitting of the full-wave simulation results. The resulting empirical gain equation of an FPC antenna whose PRS dimension is larger than $1.5{\lambda}_0$ has been obtained.

Keywords

References

  1. C. A. Balanis, Antenna Theory: Analysis and Design, 3rd ed. Hoboken, NJ: Wiley, 2005.
  2. R. J. Mailloux, "Phased array theory and technology," Proceeding of the IEEE, vol. 70, no. 3, pp. 246-291, 1982. https://doi.org/10.1109/PROC.1982.12285
  3. G. V. Trentini, "Partially reflecting sheet arrays," IRE Transactions on Antennas and Propagation, vol. 4, no. 4, pp. 666-671, 1956. https://doi.org/10.1109/TAP.1956.1144455
  4. A. Pirhadi, H. Bahrami, and J. Nasri, "Wideband high directive aperture coupled microstrip antenna design by using a FSS superstrate layer," IEEE Transactions on Antennas and Propagation, vol. 60, no. 4, pp. 2101-2106, 2012. https://doi.org/10.1109/TAP.2012.2186230
  5. R. Gardelli, M. Albani, and F. Capolino, "Array thinning by using antennas in a Fabry-Perot cavity for gain enhancement," IEEE Transactions on Antennas and Propagation, vol. 54, no. 7, pp. 1979-1990, 2006. https://doi.org/10.1109/TAP.2006.877172
  6. D. Li, Z. Szabo, X. Qing, E. P. Li, and Z. N. Chen, "A high gain antenna with an optimized metamaterial inspired superstrate," IEEE Transactions on Antennas and Propagation, vol. 60, no. 12, pp. 6018-6023, 2012. https://doi.org/10.1109/TAP.2012.2213231

Cited by

  1. Application of metasurfaces in the design of performance-enhanced low-profile antennas vol.5, pp.None, 2017, https://doi.org/10.1051/epjam/2018008
  2. Design of mechanically rotatable microstrip patch antennas using an asymmetric polariser for adaptive polarisation adjustment vol.13, pp.8, 2019, https://doi.org/10.1049/iet-map.2018.5054
  3. A Low-Profile High-Gain and Wideband Log-Periodic Meandered Dipole Array Antenna with a Cascaded Multi-Section Artificial Magnetic Conductor Structure vol.19, pp.20, 2017, https://doi.org/10.3390/s19204404
  4. Compact and Robust Fabry-Perot Cavity Antenna with PEC Wall vol.21, pp.3, 2021, https://doi.org/10.26866/jees.2021.3.r.25
  5. Gain Improvement of a Fabry-Perot Cavity Antenna Enclosed with Metallic Side Walls vol.32, pp.9, 2021, https://doi.org/10.5515/kjkiees.2021.32.9.755