A novel microstrip-fed slot antenna with triple-band operation in compact size is proposed. The proposed antenna structure consists of a L-shaped microstrip feed line and open-ended slot on the ground plane, having small overall size of 14 x 34 mm2. The open-ended slot constructed of crossed double T-shaped slots is aimed to obtain resonant modes at 2.4/3.5 GHz. Meanwhile, with the use of a via-loaded metal patch connected to the edge of ground, the upper resonant frequency point at 5.8 GHz is achieved. The numerical and experimental results exhibit the designed antenna operates over triple frequency ranges, fulfilling the standards of 3.5-GHz WiMAX and 2.4/5.8-GHz WLAN. In addition, acceptable radiation characteristic is obtained over the operating bands.
2. Kuo, Y.-L. and K.-L.Wong, "Printed double-T monopole antenna for 2.4/5.2 GHz dual-band WLAN operations," IEEE Trans. Antennas Propag., Vol. 51, No. 9, 2187-2192, 2003.
doi:10.1109/TAP.2003.816391
3. Li , F., L.-S. Ren, G. Zhao, and Y.-C. Jiao, "Compact triple-band monopole antenna with C-shaped and S-shaped meander strips for WLAN/WiMAX applications," Progress In Electromagnetics Research Letters, Vol. 15, 107-116, 2010.
doi:10.2528/PIERL10052004
4. Xu, P. , Z.-H. Yan, and C. Wang, "Multi-band modified fork-shaped monopole antenna with dual L-shaped parasitic plane," Electron. Lett., Vol. 47, No. 6, 364-365, 2011.
doi:10.1049/el.2010.3280
5. Abaga Abessolo , M. A. , A. El Moussaoui, and N. Aknin, "Dual-band monopole antenna with omega particles for wireless applications," Progress In Electromagnetics Research Letters, Vol. 24, 27-34, 2011.
6. Seol , K. , J. Jung, and J. Choi, "Multi-band monopole antenna with inverted U-shaped parasitic plane," Electron. Lett., Vol. 42, No. 15, 844-845, 2006.
doi:10.1049/el:20061142
7. Antoniades, M. A. and G. V. Eleftheriades, "A compact multiband monopole antenna with a defected ground plane," IEEE Antennas Wireless Propagat. Lett., Vol. 7, 652-655, 2008.
doi:10.1109/LAWP.2008.2007813
8. 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 Wireless Propagat. Lett., Vol. 10, 298-301, 2011.
9. Liu , W.-C. , C.-M. Wu, and Y. Dai, "Design of triple-frequency microstrip-fed monopole antenna using defected ground structure," IEEE Trans. Antennas Propag., Vol. 59, No. 7, 2457-2463, 2011.
doi:10.1109/TAP.2011.2152315
10. Chen, , W.-S. and K.-Y. Ku, "Band-rejected design of the printed open slot antenna for WLAN/WiMAX operation," IEEE Trans. Antennas Propag., Vol. 56, No. 4, 1163-1169, 2008.
doi:10.1109/TAP.2008.919192
11. Hu , W., Y.-Z. Yin, P. Fei, and X. Yang, "Compact triband square-slot antenna with symmetrical L-strips for WLAN/WiMAX applications," IEEE Antennas Wireless Propagat. Lett., Vol. 10, 462-465, 2011.
doi:10.1109/LAWP.2011.2154372
12. Song , K. , Y.-Z. Yin, and B. Chen, "Triple-band open L-slot antenna with a slit and a strip for WLAN/WiMAX applications," Progress In Electromagnetics Research Letters, Vol. 22, 139-146, 2011.
13. Chen , J.-S., "Dual-frequency annular-ring slot antennas fed by CPW feed and microstrip line feed," IEEE Trans. Antennas Propag., Vol. 53, No. 3, 569-571, 2005.
doi:10.1109/TAP.2004.838799
14. Gai , S. , Y.-C. Jiao, Y.-B. Yang, C.-Y. Li, and J.-G. Gong, "Design of a novel microstrip-FED dual-band slot antenna for WLAN applications," Progress In Electromagnetics Research Letters, Vol. 13, 75-81, 2010.
doi:10.2528/PIERL09111103
Submit
