DOI QR코드

DOI QR Code

Analysis of Monopole Antenna Equipped with a Reflector for UWB Systems

UWB 시스템용 반사판을 갖는 모노폴 안테나 분석

  • Kim, Yeong-Jin (Department of Automatic System, Chosun College of Science & Technology) ;
  • Choi, Dong-You (Department of Information and Communication Engineering, Chosun University)
  • Received : 2019.06.12
  • Accepted : 2019.08.12
  • Published : 2019.10.31

Abstract

In this paper, we present the analysis of a novel monopole antenna with a reflector. The proposed monopole antenna is printed on a TRF-45 substrate, and the reflector, which is positioned near the base of the antenna, is printed on the FR-4 substrate. Positioning the reflector near the base of the antenna was found to suppress current radiation toward the back of the monopole antenna. Comparative analysis of the proposed monopole antenna and a conventional monopole antenna without a reflector revealed that the bandwidths of the antenna with and without a reflector were 2.65 GHz and 2.88 GHz, respectively. Additionally, the antenna without a reflector was observed to have a bi-directional radiation pattern in the E-plane, and an omni-directional radiation pattern in the H-plane. However, only the antenna with a reflector was found to suppress back radiation, and provide non-uniform directional radiation in the E-plane and H-plane.

본 논문에서는 반사판을 갖는 새로운 모노폴 안테나를 제안 하였다. 제안한 안테나는 TRF-45 기판으로 제작하였으며, 제작한 안테나와 결합한 반사판도 FR-4 기판으로 제작하였다. 안테나 후면에 위치한 반사판으로 인해 후면에 반사되는 전류가 억제되는 것을 확인하였다. 제안한 모노폴 안테나의 대역폭은 2.65 GHz이며, 반사판이 없는 모노폴 안테나의 대역폭은 2.88 GHz이다. 또한, 반사판이 없는 안테나는 E-평면에서 양방향 방사 패턴이 관찰되었으며, H-평면에서는 무지향성의 방사패턴이 관찰되었다. 그러나 반사판을 갖는 안테나의 경우 후방 방사를 억제하며, E-평면과 H-평면에서 지향성 방사를 제공한다.

Keywords

References

  1. W. Dullaert, and H. Rogier, "Novel Compact Model for the Radiation Pattern of UWB Antennas using Vector Spherical and Slepian Decomposition," IEEE Trans. Antennas Propag., vol. 58, no. 2, pp. 287-299, Feb. 2010. https://doi.org/10.1109/TAP.2009.2037700
  2. S. W. Kim, and D. Y. Choi, "Compact Filtering Monopole Patch Antenna with Dualb-Band Rejection," SpringerPlus, vol. 5, no. 1, article no. 883, 2016.
  3. XETHRU [Internet]. Available: https://www.xethru.com/.
  4. TIME DOMAIN [Internet]. Available: https://timedomain.com/.
  5. UMAIN [Internet]. Available: http://www.umain.co.kr/ko/.
  6. M. S. Rabbani, and G. S. Hooshang, "Accurate Remote Vital Sign Monitoring with 10 GHz Ultra-Wide Patch Antenna Array," Int. J. Electron. Commun., vol. 77. pp. 36-42, Jul. 2017. https://doi.org/10.1016/j.aeue.2017.04.024
  7. F. B. Zarrabi, Z. Mansouri, N. P. Gandji, and H. Kuhestani, "Triple-Notch UWB Monopole Antenna with Fractal Koch and T-Shaped Stub," Int. J. Electron. Commun., vol. 70, no. 1, pp. 64-69, Jan. 2016. https://doi.org/10.1016/j.aeue.2015.10.001
  8. P. S. Bakariya, S. Dwari, and M. Sarkar, "Triple Band Botch UWB Printed Monopole Antenna with Enhanced Bandwidth," Int. J. Electron. Commun., vol. 69, no. 1, pp. 26-30, Jan. 2015. https://doi.org/10.1016/j.aeue.2014.07.023
  9. S. Chagharvand, M. R. Hamid, M. R. Kamarudin, and F. Ghanem, "Reconfigurable Multiband Tapered Slot Antenna," Microwave and Optical Technology Letters, vol. 57, no. 9, pp. 2182-2186, Sep. 2015. https://doi.org/10.1002/mop.29295
  10. S. W. Kim, and D. Y. Choi, "Implementation of Rectangular Slit‑Inserted Ultra‑Wideband Tapered Slot Antenna," SpringerPlus, vol. 5, no. 1, article no. 1387, 2016.
  11. J. Wu, Z. Zhao, Z. Nie, and Q. H. Liu, "Bandwidth Enhancement of a Planar Printed Quasi-Yagi Antenna with Size Reduction," IEEE Transactions on Antennas and Propagation, vol. 62, no. 1, pp. 463-467, Jan. 2014. https://doi.org/10.1109/TAP.2013.2287286
  12. D. Yang, J. Qu, Z. Zhao, S. Liu, and Z. Nie, "Planar Quasi-Yagi Antenna with Band Rejection Based on Dual Dipole Structure for UWB," IET Microwaves, Antennas & Propagation, vol. 10, no. 15, pp. 1708-1714, Dec. 2016. https://doi.org/10.1049/iet-map.2016.0160
  13. S. W. Kim, G. S. Kim, and D. Y. Choi, "CPW-Fed Wideband Circular Polarized Antenna for UHF RFID Applications," International Journal of Antennas and Propagation, pp. 1-7, Jul. 2017.