CIRCULARLY POLARIZED SLOT ANTENNA WITH COMPACT SIZE FOR WLAN/WIMAX APPLICATION

Year 2013, Volume: 3 Issue: 3, 599 - 601, 01.12.2013

Azim Rezaei Motlagh Omid Borazjani Ramezanali Sadeghzade Mohammad Naser Moghaddasi

Abstract

In this letter a circle patch that have two slots in ground and patch is presented. The antenna is operated in WLAN/WiMAX at 4.7~6 GHz. The 3dB axial ratio bandwidth is 0.5GHz at 5.3~5.8GHz. Comparison results between measured and simulated of antenna are acceptable.

References

• B. N. Das and K. K. Joshi, “Impedance of a radiating slot in the ground plane of a microstrip line,” IEEE Trans. Antennas and Propagat., vol. .4P-30, pp.922-926, 1982.
• D. M. Pozar, “A reciprocity method of analysis for printed slot and slot-coupled microstrip
• Antennas and Propagat., vol. AP-34, pp.1439-1446. 1986. IEEE
• Trans. [3]. L. Zhu and K. Wn, “Complete circuit model of microstrip-fed slot radiator: theory and experiments,” IEEE Microwave Guided Wave Lett., vol. 9, no.8, pp.305-307, 1999.
• J. S. Row, “Design of square-ring antenna microstrip
• polarisation,” Electron Lett., vol. 40, pp. 93–95, Jan. 2004. for
• circular [5]. Y. F. Lin, H. M. Chen, and S. C. Lin, “A new coupling mechanism for circularly polarized annular-ring patch antenna,” IEEE Trans. Antennas Propag., vol. 56, pp. 11–16, Jan. 2008.
• X. M. Qing and Y. W. M. Chia, “Broadband circularly polarised slot loop antenna fed by three-stub hybrid coupler,” Electron Lett., vol. 35, pp. 1210–1211, Jul. 1999.
• T. Y. Han, Y. Y. Chu, L. Y. Tseng, and J. S. Row, “Unidirectional circularly-polarized slot antennas with broadband operation,” IEEE Trans. Antennas Propag., vol. 56, pp. 1777–1780, Jun. 2008.