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

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
권호 표지
DOI QR코드

DOI QR Code

A CPW-fed Small Monopole Antenna for 5.1~5.8 GHz WLAN

5.1~5.8 GHz 무선랜용 CPW 급전 소형 모노폴 안테나

  • Choi, In-Tae (Development Department, Thermalsolutions Inc.) ;
  • Shin, Ho-Sub (IT Convergence and Communication Engineering Major, School of IT, information and Control Engineering, Kunsan Nat'l University)
  • Received : 2019.09.24
  • Accepted : 2019.10.13
  • Published : 2019.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a novel design of a compact printed monopole antenna for wireless local area network (WLAN) applications is investigated. The radiator with a patch of different line width and step-shaped ground planes is used to reduce the antenna size. The size of the antenna is 16 × 17 × 1 ㎣ and is fabricated with a photolithography technique. The simulated and measured results agree well. The resonant frequency of the investigated antenna is about 5.2 GHz and can cover an impedance bandwidth of 1 GHz for the measurement result. In addition, we presented the measured radiation pattern, presented the gain and efficiency measured in the required WLAN 5 GHz frequency band (5.15-5.825 GHz), and confirmed that it can be used as a 5 GHz band WLAN antenna. The investigated antenna has a small size, light weight, low cost, omni-directional radiation pattern, high gain, and high efficiency.

본 논문에서는 WLAN (wireless local area network) 응용을 위한 소형 인쇄형 모노폴 안테나의 새로운 설계에 대해 연구했다. 선폭이 다른 패치와 계단 모양의 접지면이 있는 복사체는 안테나 크기를 줄이기 위해 사용된다. 안테나의 크기는 16 × 17 × 1 ㎣이며 포토리소그래피(photolithography) 기술로 제작되었다. 시뮬레이션 및 측정 결과가 잘 일치한다. 연구된 안테나의 공진 주파수는 약 5.2 GHz이며 측정 결과 1 GHz의 임피던스 대역폭을 가진다. 또한 측정된 방사패턴을 제시하고 필요한 WLAN 5 GHz 주파수 대역 (5.15 - 5.825 GHz)에서 측정된 이득 및 효율을 제시했으며, 5 GHz 대역 WLAN 안테나로 사용할 수 있음을 확인했다. 연구된 안테나는 소형, 경량, 저비용, 전방향성 복사패턴, 고이득 및 고효율을 갖는다.

Keywords

References

  1. Jim Geier, Wireless Lans, Sams, 2001.
  2. M. Dmytro, "Investigation of wireless channels of 802.11 standard in the 5GHz frequency band," Latvian Journal of Physics and Technical Sciences, vol. 6, no. 1, pp. 16-21, 2019.
  3. L. Verma, M. Fakharzadeh, S. H. Choi, "Wifi on steroids: 802.11AC and 802.11AD," IEEE Wireless Communications, vol. 20 , no. 6, pp. 30-35, Dec. 2013. https://doi.org/10.1109/MWC.2013.6704471
  4. M. Dmytro, "Construction of mathematical models for the estimation of signal strength at the input to the 802.11 standard receiver in a 5 GHz band," Eastern-European Journal of Enterprise Technologies, vol. 6, no. 1, pp. 16-21, 2018. https://doi.org/10.15587/1729-4061.2018.150983
  5. B. H. Jung, S. H. Jung, S. R. Yoon, D. H. Kim, "Direction of improvement of WLAN technology and IEEE 802.11 ax standardization trend," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no.3, Mar. 2015.
  6. L. Yang, C. Lu, X. Li, L. Liu, and X. Yin, "A horizontal azimuth pattern-reconfigurable antenna using omnidirectional microstrip arrays for WLAN application," International journal of antennas and propagation, vol.2019, pp. 1 - 9, Feb. 2019.
  7. C. Farouk, A. Salih, B. Nacerdine and M. Idris, "A miniaturized printed monopole antenna for 5.2-5.8 GHz WLAN applications," International journal of RF and microwave computer-aided engineering, vol. 28, no. 5, pp. e21250, Jan. 2018. https://doi.org/10.1002/mmce.21250
  8. C. H. Park, M. D. Kim, H. K. Sung, "Design of compact microstrip patch antenna for WLAN of IEEE 802.11a," Journal of Korean Institute of Information Scientists and Engineers, vol. 19, no. 12, pp. 611-617, Dec. 2013.
  9. Y. H. Kim, J. H. Han, W. K. Lee, W. G. Yang, "Design and implementation of wideband patch antenna with folded and shorted structure for 5 GHz WLAN," Journal of Korean Institute of Electromagnetic Engineering and Science, vol. 17, no. 8, pp. 760-766, Aug. 2006.
  10. C. Y. D. Sim, C. H. Ho, Y. L. Chien, "compact coplanar waveguide-fed monopole antenna with a folded ground strip for 5-GHz wireless applications," Microwave and Optical Technology Letters, vol. 53, no. 11, pp. 2464-2466. Nov. 2011. https://doi.org/10.1002/mop.26330
  11. I. T. Choi and H. S. Shin, "A Compact CPW-fed Antenna with Step Structure for 5 GHz Band WLAN Applications," Journal of the Korean Institute of Information and Communication Engineering, vol. 20, no. 1, pp. 8-14, Jan. 2016. https://doi.org/10.6109/jkiice.2016.20.1.8
  12. H.-J. Lam, Ultra-wideband antenna in coplanar technology, University of Victoria, 2005.
  13. Sharon M. Jose and B Lethakumary, "CPW-fed Step-shaped microstrip antenna for UWB applications," Microwave and optical technology Letters, vol. 57, no. 3, pp. 589-591. Mar. 2015. https://doi.org/10.1002/mop.28903