volume | PIER Journals

Abstract

A novel trapezoidal slot patch antenna with an embedded trapezoidal strip is proposed for satisfying wireless local area network (WLAN) and worldwide interpretability for microwave access (WiMAX) applications simultaneously. The proposed antenna consists of a rectangular radiation patch with an etched trapezoidal slot and an embedded trapezoidal strip on the top and a beveled ground on the bottom side. By carefully selecting the width of the radiation patch and length of the beveled ground, the proposed antenna can generate two separate bands. The measured results show that the 10 dB return loss bandwidths of the proposed antenna are 430 MHz (2.30-2.73 GHz) and 3460 MHz (3.21-6.67 GHz), which can cover both the WLAN bands (2.4-2.484 GHz, 5.15-5.35 GHz, and 5.725-5.825 GHz) and the WiMAX bands (2.4-2.6 GHz, 3.4-3.6 GHz, and 5.25-5.85 GHz). Furthermore, good omnidirectional radiation patterns with appreciable gain are obtained over the operating bands.

1. Fu, F. Y., L.-P. Yan, K. Huang, and J. S. Dong, "Design and implement of a CPW-fed meander monopole antenna with V-shape notched ground for WLAN," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 14, 2129-2136, 2007.
doi:10.1163/156939307783152939

2. Liu, W.-C. and H.-J. Liu, "Miniaturized asymmetrical CPW-fed meandered strip antenna for triple-band operation," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 8, 1089-1097, 2007.

3. Liu, , W.-C. and Y.-T. Kao, "CPW-fed compact meandered strip antenna on a soft substrate for dualband WLAN communication," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 7, 987-995, 2007.
doi:10.1163/156939307780749002

4. Wang , X.-M., L. Luo, J.-P. Xiong, L. Zhang, Z.-B. Weng, Y.-C. Jiao, and F.-S. Zhang, "A broadband CPW-FED slot antenna for IMT-2000, WiMAX and WLAN applications," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 10, 1326-1332, 2008.
doi:10.1163/156939308786348893

5. Xiong , J.-P., L. Liu, X.-M.Wang, J. Chen, and Y.-L. Zhao, "Dual-band printed bent slots antenna for WLAN applications," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 11-12, 1509-1515, 2008.
doi:10.1163/156939308786390175

6. Shams, K. M. Z., M. Ali, and H.-S. Hwang, "A planar inductively coupled bow-tie slot antenna for WLAN application," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 7, 861-871, 2006.
doi:10.1163/156939306776149879

7. Ren , X.-S., Y.-Z. Yin, W. Hu, and Y.-Q. Wei, "Compact tri-band rectangular ring patch antenna with asymmetrical strips for WLAN/WiMAX applications," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 13, 1829-1838, 2010.

8. Zhang , Q.-Y. and Q.-X. Chu, "Triple-band dual rectangular ring printed monopole antenna for WLAN/WiMAX applications," Microwave Opt. Technol. Lett., Vol. 51, No. 12, 2845-2848, 2009.
doi:10.1002/mop.24773

9. Sim , D.-U. and J.-I. Choi, "A compact wideband modified planar inverted F antenna (PIFA) for 2.4/5-GHz WLAN applications," IEEE Antennas Wirel. Propag. Lett., Vol. 5, 391-394, 2006.
doi:10.1109/LAWP.2006.881914

10. Nepa, P., G. Manara, A.-A. Serra, G. Nenna, "Multiband PIFA for WLAN mobile terminals," IEEE Antennas Wirel. Propag. Lett., Vol. 4, 349-350, 2005.
doi:10.1109/LAWP.2005.857032

11. Lee , C.-T. and K.-L. Wong, "Uniplanar printed coupled-fed PIFA with a band-notching slit for WLAN/WiMAX operation in the laptop computer," IEEE Antennas Wirel. Propag. Lett., Vol. 57, 1252-1258, 2009.

12. Jaw, J.-L., F.-S. Chen, and D.-F. Chen, "Compact dual band CPW-fed slotted patch antenna for 2.4/5 GHz WLAN operation," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 14-15, 1947-1955, 2009.
doi:10.1163/156939309789932584

13. Liu , W.-C., C.-M. Wu, and N.-C. Chu, "A compact CPW-fed slotted patch antenna for dual-band operation," IEEE Antennas Wirel. Propag. Lett., Vol. 9, 110-113, 2010.

14. Pei, J., A.-G. Wang, S. Gao, and W. Leng, "Miniaturized triple-band antenna with a defected ground plane for WLAN/WiMAX applications," IEEE Antennas Wirel. Propag. Lett., Vol. 10, 298-301, 301.

15. Hong , C.-Y., C.-W. Ling, I.-Y. Tarn, and S.-J. Chung, "Design of a planar ultrawideband antenna with a new band-notch structure," IEEE Trans. Antennas Propag., Vol. 55, 3391-3397, 2007.
doi:10.1109/TAP.2007.910486

Dr. Jiao-Jiao Xie

Professor Ying-Zeng Yin

Dr. Cai Wen Zhang

Dr. Biao Li