Journal of electromagnetic engineering and science

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

DOI QR Code

Calculating Array Patterns Using an Active Element Pattern Method with Ground Edge Effects

  • Lee, Sun-Gyu (School of Electronic and Electrical Engineering, Hongik University) ;
  • Lee, Jeong-Hae (School of Electronic and Electrical Engineering, Hongik University)
  • Received : 2018.01.04
  • Accepted : 2018.04.18
  • Published : 2018.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

The array patterns of a patch array antenna were calculated using an active element pattern (AEP) method that considers ground edge effects. The classical equivalent radiation model of the patch antenna, which is characterized by two radiating slots, was adopted, and the AEPs that include mutual coupling were precisely calculated using full-wave simulated S-parameters. To improve the accuracy of the calculation, the edge diffraction of a ground plane was incorporated into AEP using the uniform geometrical theory of diffraction. The array patterns were then calculated on the basis of the computed AEPs. The array patterns obtained through the conventional AEP approach and the AEP method that takes ground edge effects into account were compared with the findings derived through full-wave simulations conducted using a High Frequency Structure Simulator (HFSS) and FEKO software. Results showed that the array patterns calculated using the proposed AEP method are more accurate than those derived using the conventional AEP technique, especially under a small number of array elements or under increased steering angles.

Keywords

References

  1. R. J. Mailloux, Phased Array Antenna Handbook. Boston, MA: Artech House, 2005.
  2. A. Ludwig, "Mutual coupling, gain and directivity of an array of two identical antennas," IEEE Transactions on Antennas and Propagation, vol. 24, no. 6, pp. 837-841, 1976. https://doi.org/10.1109/TAP.1976.1141440
  3. S. Lim, W. C. Choi, and Y. J. Yoon, "Miniaturized radio frequency choke using modified stubs for high isolation in MIMO systems," Journal of Electromagnetic Engineering and Science, vol. 15, no. 4, pp. 219-223, 2015. https://doi.org/10.5515/JKIEES.2015.15.4.219
  4. D. Kwon, S. J. Lee, J. W. Kim, B. Ahn, J. W. Yu, and W. S. Lee, "An eight-element compact low-profile planar MIMO antenna using LC resonance with high isolation," Journal of Electromagnetic Engineering and Science, vol. 16, no. 3, pp. 194-197, 2016. https://doi.org/10.5515/JKIEES.2016.16.3.194
  5. C. A. Balanis, Antenna Theory, 3rd ed. Hoboken, NJ: John Wiley & Sons, 2005.
  6. N. Alexopoulos and I. Rana, "Mutual impedance computation between printed dipoles," IEEE Transactions on Antennas and Propagation, vol. 29, no. 1, pp. 106-111, 1981. https://doi.org/10.1109/TAP.1981.1142531
  7. N. G. Alexopoulos, P. B. Katehi, and D. B. Rutledge, "Substrate optimization for integrated circuit antennas," IEEE Transactions on Microwave Theory and Techniques, vol. 31, no. 7, pp. 550-557, 1983. https://doi.org/10.1109/TMTT.1983.1131544
  8. D. M. Pozar, "The active element pattern," IEEE Transactions on Antennas and Propagation, vol. 42, no. 8, pp. 1176- 1178, 1994. https://doi.org/10.1109/8.310010
  9. J. Huang, "The finite ground plane effect on the microstrip antenna radiation patterns," IEEE Transactions on Antennas and Propagation, vol. 31, no. 4, pp. 649-653, 1983. https://doi.org/10.1109/TAP.1983.1143108
  10. R. G. Kouyoumjian and P. H. Pathak, "A uniform geometrical theory of diffraction for an edge in a perfectly conducting surface," Proceedings of the IEEE, pp. 1448-1461, 1974, vol. 62, no. 11. https://doi.org/10.1109/PROC.1974.9651
  11. D. M. Pozar, Microwave Engineering, 4th ed. Hoboken, NJ: John Wiley & Sons, 2012.

Cited by

  1. 일차원과 이차원 Ka-대역 프린티드 다이폴 배열 안테나의 스캔 블라인드니스 분석 vol.30, pp.3, 2019, https://doi.org/10.5515/kjkiees.2019.30.3.202
  2. Modeling of Transfer Impedance in Automotive BCI Test System with Closed-Loop Method vol.103, pp.4, 2020, https://doi.org/10.1587/transcom.2019ebp3144
  3. Optimum Placement of the 3-Axis LF Antenna in a Small Mobile Device for Vehicular Applications vol.21, pp.3, 2018, https://doi.org/10.1007/s12239-020-0066-z