volume | PIER Journals

2013-01-31

Design of Printed Yagi Antenna with Additional Driven Element for WLAN Applications

Jafar Ramadhan Mohammed

Prof. Jafar Ramadhan Mohammed

College of Electronics Engineering

Ninevah University

Iraq

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Progress In Electromagnetics Research C, Vol. 37, 67-81, 2013

doi:10.2528/PIERC12121201 | Google Scholar

Abstract

A new configuration of Yagi antenna is proposed, which can improve the forward/backward ratio (f/b) significantly while maintaining a high gain. This configuration involves the addition of one radiating element (dipole) to the original Yagi array which produces a controllable pattern used for cancellation of back lobe. This additional element may arrange on parallel (side-by-side) or collinear to a radiating dipole of the original Yagi antenna. It is shown here that the technique is most effective for collinear configuration (exhibits smaller mutual effects) and that there then exists an optimum length and position for the added element. The amplitude of the excitation of the additional element determines the angular location of the back lobe reduction. To demonstrate the major benefits, comparisons are made among the proposed and conventional Yagi configurations. Numerical and measured results of our design show more than 20 dB front to back ratio at 2.4 GHz. To the author's knowledge, this is the first printed Yagi antenna presented that has a high gain and a high f/b ratio designed using simple technique. Moreover, the proposed array represents a simple and valuable alternative to the stack Yagi antennas as the obtainable radiation characteristics are satisfactory in terms of both forward and backward gain.

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Jafar Ramadhan Mohammed, "Design of Printed Yagi Antenna with Additional Driven Element for WLAN Applications," Progress In Electromagnetics Research C, Vol. 37, 67-81, 2013.
doi:10.2528/PIERC12121201

References

1. Wu, Y., B. Sun, J. Li, and Q. Liu, "Triple-band omni-directional antenna for WLAN application," Progress In Electromagnetics Research, Vol. 76, 477-484, 2007.
doi:10.2528/PIER07080601 Google Scholar

2. Pozar, D., "Microstrip antennas," Proc. IEEE, Vol. 80, No. 1, 79-91, Jan. 1992.
doi:10.1109/5.119568 Google Scholar

3. Huang, J., "Planar microstrip Yagi array antenna," IEEE Antennas and Propagation Society Int. Symp., Vol. 2, 894-897, Jun. 1989.
doi:10.1109/APS.1989.134838 Google Scholar

4. Densmore, A. and J. Huang, "Microstrip Yagi antenna for mobile satellite vehicle application," IEEE Trans. Antennas Propag., Vol. 39, No. 7, 1024-1030, Jul. 1991. Google Scholar

5. Xin, Q., F.-S. Zhang, B.-H. Sun, Y.-L. Zou, and Q.-Z. Liu, "Dual-band Yagi-Uda antenna for wireless communications," Progress In Electromagnetics Research Letters, Vol. 16, 119-129, 2010.
doi:10.2528/PIERL10051602 Google Scholar

6. Lin, S., G.-L. Huang, R.-N. Cai, and J.-X. Wang, "Novel printed Yagi-Uda antenna with high-gain and broadband," Progress In Electromagnetics Research Letters, Vol. 20, 107-117, 2011. Google Scholar

7. Ta, S. X., H. Choo, and I. Park, "Wideband double-dipole Yagi-Uda antenna fed by a microstrip-slot coplanar stripline transition," Progress In Electromagnetics Research B, Vol. 44 , 71-87, 2012. Google Scholar

8. DeJean, G. R. and M. M. Tentzeris, "A new high-gain microstrip Yagi array antenna with a high front-to-back (F/B) ratio for WLAN and millimeter-wave applications," IEEE Trans. Antennas Propag., Vol. 55, No. 2, 298-304, Feb. 2007.
doi:10.1109/TAP.2006.889818 Google Scholar

9. Bemani, M. and S. Nikmehr, "A novel wide-band microstrip Yagi-Uda array antenna for WLAN applications," Progress In Electromagnetics Research B, Vol. 16, 389-406, 2009.
doi:10.2528/PIERB09053101 Google Scholar

10. Huang, E. and T. Chiu, "Printed Yagi antenna with multiple reflectors," Electronics Letters, Vol. 40, No. 19, Sep. 16, 2004. Google Scholar

11. Khodier, M. and M. Al-Aqil, "Design and optimization of Yagi-Uda antenna arrays," IET Microw. Antennas Propag., Vol. 4, No. 4, 426-436, Apr. 2010.
doi:10.1049/iet-map.2009.0054 Google Scholar

12. Mohammed, J. R., "A new technique for obtaining wide-angular nulling in the sum and difference patterns of monopulse antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 11, 1242-1245, 2012. Google Scholar

13. Balanis, C. A., Antenna Theory: Analysis and Design, 3rd Ed., John Wiley & Sons, 2005.