Browse > Article
http://dx.doi.org/10.5762/KAIS.2012.13.9.4165

Study on a broadband quasi-Yagi antenna for mobile base station  

Lee, Jong-Ig (Department of Electronics Engineering, Dongseo University)
Yeo, Jun-Ho (School of Computer and Communication Engineering, Daegu University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.9, 2012 , pp. 4165-4170 More about this Journal
Abstract
In this paper, a method for the improvement in the gain and bandwidth of a microstrip-fed broadband planar quasi-Yagi antenna (QYA) is studied. The broadband characteristics of the QYA are achieved from the coplanar strip-fed planar dipole driver and a parasitic director close to the driver. In order to obtain stable gain variation over the required frequency band, a director and a ground reflector are appended to the driver having a nearby parasitic director. The QYA is fed through an integrated balun composed of a microstrip line and a slot line which are terminated in a short circuit. By adjusting the feeding point, a broadband impedance matching is obtained. A QYA with an operating frequency band of 1.75-2.7 GHz and a gain > 4.5 dBi is designed and fabricated on an FR4 substrate with dielectric constant of 4.4 and thickness of 1.6mm. The experimental results show that the fabricated antenna has good performance such as a broad bandwidth of 59.7%(1.55-2.87 GHz), a stable gain between 4.7-6.5 dBi, and a front-to-back ratio > 10 dB. The measured data agree well with the simulation, which validates this study.
Keywords
Microstrip antenna; Quasi-Yagi antenna; Broadband antenna; Microstrip balun;
Citations & Related Records
연도 인용수 순위
  • Reference
1 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.   DOI   ScienceOn
2 N. Kaneda, W. R. Deal, Y. Qian, R. Waterhouse, and T. Itoh, "A broad-band quasi-Yagi antenna," IEEE Trans. Antennas Propagat., vol. 50, no. 8, pp. 1158-1160, Aug. 2002.   DOI   ScienceOn
3 K. Han, Y. Park, and I. Park, "Broadband CPS-fed Yagi-Uda antenna," Electron Lett., vol. 45, no. 24, pp. 1207-1209, Nov. 2009.   DOI   ScienceOn
4 D. S. Woo, Y. G. Kim, K. W. Kim, and Y. K. Cho, "Design of quasi-Yagi antennas using an ultrawideband balun," Microwave Opt. Technol. Lett., vol. 50, no. 8, pp. 2068-2071, Aug. 2008.   DOI   ScienceOn
5 H. K. Kan, R. B. Waterhouse, A. M. Abbosh, and M. E. Bialkowski, "Simple broadband planar CPW-fed quasi-Yagi antenna," IEEE Antennas Wireless Propagat. Lett., vol. 6, pp. 18-20, 2007.   DOI   ScienceOn
6 J. Sor, Y. Qian, and T. Itoh, "Coplanar waveguide fed quasi-Yagi antenna," Electron. Lett., vol. 36, no. 1, pp. 1-2, Jan. 2000.   DOI
7 G. Zheng, A. A. Kishk, A. W. Glisson, and A. B. Yakovlev, "Simplified feed for modified printed Yagi antenna," Electron. Lett., vol. 40, no. 8, pp. 464-466, Apr. 2004.   DOI   ScienceOn
8 G. S. Shiroma and W. A. Shiroma, "A two-element L-band quasi-Yagi antenna array with omnidirectional coverage," IEEE Trans. Antennas Propagat., vol. 55, no. 12, pp. 3713-3716, Dec. 2007.   DOI
9 B. Edward and D. Rees, "A broadband printed dipole with integrated balun," Microwave J., pp. 339-344, May 1987.
10 R. L. Li, T. Wu, B. Pan, K. Lim, J. Laskar, and M. M. Tentzeris, "Equivalent-circuit analysis of a broadband printed dipole with adjusted integrated balun and an array for base station applications," IEEE Trans. Antennas Propagat., vol. 57, no. 7, pp. 2180-2184, Jul. 2009.   DOI   ScienceOn