한국정보통신학회논문지 (Journal of the Korea Institute of Information and Communication Engineering)

  • 제20권12호
  • /
  • Pages.2199-2205
  • /
  • 2016
  • /
  • 2234-4772(pISSN)
  • /
  • 2288-4165(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
권호 표지
DOI QR코드

DOI QR Code

코플래너 도파관으로 급전되는 소형 2-소자 준-야기 안테나 설계

Design of a compact coplanar waveguide-fed 2-element quasi-Yagi antenna

  • Baek, Woon-Seok (Department of Computer and Communication Military Science, Dongyang University)
  • 투고 : 2016.10.24
  • 심사 : 2016.10.26
  • 발행 : 2016.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 코플래너 도파관으로 급전되는 소형 2-소자 준-야기 안테나 설계 방법에 대해 연구하였다. 평면 다이폴을 급전하기 위한 코플래너 스트립과 코플래너 도파관 간의 밸런은 코플래너 도파관의 한 쪽 접지 스트립을 신호선과 연결시켜서 구성하였다. 스트립 다이폴과 반사기를 구부리고 밸런을 안테나에 내장하여 소형화하였다. 제안된 구조를 UHF RFID 대역(902-928 MHz)에 적합하도록 설계하였으며, 여러 가지 파라미터들(다이폴 길이, 반사기 길이, 다이폴과 반사기 사이의 거리, 급전 위치 등)에 의한 영향을 점검하였다. FR4 기판 상에 $90mm{\times}80mm$ 크기의 안테나를 제작하고 특성을 실험한 결과 전압 정재파비가 2이하인 주파수 대역은 885-942 MHz, RFID용 주파수 대역 내 이득은 4.3 dBi 이상, 전후방비 7 dB 이상인 특성을 관찰할 수 있었다.

In this paper, a design method for a coplanar waveguide (CPW)-fed 2-element quasi-Yagi antenna (QYA) is studied. A balun between CPW and coplanar strip (CPS) which feeds a planar dipole is implemented by connecting the one end of ground strips in a CPW to a signal strip. The antenna size is reduced by bent strip dipole and reflector, and an integrated balun. The proposed antenna was designed for the operation in a UHF radio frequency identification (RFID) band of 902-928 MHz, and the effects of various parameters such as dipole length, reflector length, distance between dipole and reflector, feed position were examined. The antenna with a size of $90mm{\times}80mm$ was fabricated on an FR4 substrate, and the experiment results reveal a frequency band of 885-942 MHz for a voltage standing wave ratio < 2, a gain > 4.3 dBi, and a front-to-back ratio > 7 dB over the frequency band for the UHF RFID.

키워드

참고문헌

  1. R. Waterhouse, Printed antennas for wireless communications. Chichester: Wiley; 2007.
  2. R. Garg, P. Bhartia, I. Bahl, and A. Ittipibon, Microstrip antenna design handbook. Norwood (MA): Artech House; 2001.
  3. Y. Qian, W. R. Deal, N. Kaneda, and T. Itoh, "Microstrip-fed quasi-Yagi antenna with broadband characteristics," Electron. Lett., vol. 34, no. 23, pp. 2194-2196, Nov. 1998. https://doi.org/10.1049/el:19981583
  4. N. Kaneda, W. R. Deal, Y. Qian, R. Waterhouse, and T. Itoh, "A broad-band quasi-Yagi antenna," IEEE Trans. Antennas Propag., vol. 50, no. 8, pp. 1158-1160, Aug. 2002. https://doi.org/10.1109/TAP.2002.801299
  5. J. Sor, Y. Qian, and T. Itoh, "Coplanar waveguide fed quasi-Yagi antenna," Electron. Lett., pp. 1-2, vol. 36, no. 1, Jan. 2000. https://doi.org/10.1049/el:20000132
  6. J. Yeo and J. I. Lee, "Broadband compact series-fed dipole pair antenna with simplified integrated balun," Microw. & Opt. Tech. Lett., vol. 56, no. 8, pp. 1731-1734, Aug. 2014. https://doi.org/10.1002/mop.28432
  7. J. Yeo and J. I. Lee, "Design of miniaturized quasi-Yagi antenna for portable RFID reader applications," Progress In Electromagnetics Research C, vol. 58, pp. 97-104, July 2015. https://doi.org/10.2528/PIERC15041701
  8. A. M. Sanchez, M. Ribo, L. Pradell, J. Anguera, and A. Andujar, "CPW balun for printed balanced antennas," Electron. Lett., vol. 50, no. 11, pp. 785-786, May 2014. https://doi.org/10.1049/el.2014.0907
  9. P. V. Nikitin, K. V. S. Rao, "Compact Yagi antenna for handheld UHF RFID reader," Proc. IEEE Antennas Propag. Soc. Int. Symp., pp. 1-4, July 2010.
  10. J. Yeo and J. I. Lee, "Design of miniaturized quasi-yagi antenna for portable RFID reader applications," Progress In Electromagnetics Research C, vol. 58, pp. 97-104, 2015. https://doi.org/10.2528/PIERC15041701
  11. Hua, R. C. and T. G. Ma, "A printed dipole antenna for ultra high frequency (UHF) radio frequency identification (RFID) handheld reader," IEEE Trans. Antennas Propag., vol. 55, no. 12, pp. 3742-3745, Dec. 2007. https://doi.org/10.1109/TAP.2007.910521
  12. Hsu, H. T. and T. J. Huang, "A Koch-shaped log-periodic dipole array (LPDA) antenna for universal ultra-highfrequency (UHF) radio frequency identification (RFID) handheld reader," IEEE Trans. Antennas Propag., vol. 61, no. 9, pp. 4852-4856, Sep. 2013. https://doi.org/10.1109/TAP.2013.2264451