volume | PIER Journals

Abstract

In this paper, a compact asymmetric coplanar strip (ACS)-fed printed monopole antenna for tri-band WLAN/WiMAX applications is presented. The proposed antenna is composed of a simple monopole with the high resonant mode at 5.8 GHz, an open-ended slot embedded on the ground plane with the low resonant mode at 2.4 GHz, and a meander trip shorted to the ground with the middle resonant mode at 3.5 GHz. The three resonance frequencies of the antenna can be controlled by adjusting the geometries and the sizes of the monopole, the slot and the strip. The antenna occupies a very compact size of 22×12 mm² including the ground plane, has nearly omnidirectional radiation characteristics and reasonable gain in the operating bands. The simple feeding structure, compactness and uniplanar design make it easy to be integrated within the portable device for wireless communication.

1. Mehdipour, A., A.-R. Sebak, C.-W. Trueman, and T.-A. Denidni, "Compact multiband planar antenna for 2.4/3.5/5.2/5.8-GHz wireless applications," IEEE Antennas Wirel. Propag. Lett., Vol. 11, 144-147, 2012.
doi:10.1109/LAWP.2012.2185915 Google Scholar

2. 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. Google Scholar

3. Liu, W.-C., C.-M. Wu, and D. Yang, "Design of triple-frequency microstrip-fed monopole antenna using defected ground structure," IEEE Trans. Antennas Propag., Vol. 59, 2457-2463, 2011.
doi:10.1109/TAP.2011.2152315 Google Scholar

4. Huang, K.-Y. and T. Chiu, "Triband inverted-F antenna with stacked branched monopoles and a parasitic strip," IEEE Antennas Wirel. Propag. Lett., Vol. 10, 1208-1211, 2011.
doi:10.1109/LAWP.2011.2173455 Google Scholar

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

6. Wang, C.-J. and K.-L. Hsiao, "CPW-fed monopole antenna for multiple system integration," IEEE Trans. Antennas Propag., Vol. 62, 1007-1011, 2014.
doi:10.1109/TAP.2013.2290551 Google Scholar

7. Sun, X., G. Zeng, H.-C. Yang, and Y. Li, "A compact quad-band CPW-fed slot antenna for MWiMAX/," IEEE Antennas Wirel. Propag. Lett., Vol. 11, 395-398, 2012.
doi:10.1109/LAWP.2012.2192901 Google Scholar

8. Liu, P.-G., Y.-L. Zou, B.-R. Xie, X.-L. Liu, and B.-H. Sun, "Compact CPW-fed tri-band printed antenna with meandering split-ring slot for WLAN/WiMAX applications," IEEE Antennas Wirel. Propag. Lett., Vol. 11, 1242-1245, 2012.
doi:10.1109/LAWP.2012.2225402 Google Scholar

9. Deepu, V., R.-K. Raj, M. Joseph, M.-N. Suma, and P. Mohanan, "Compact asymmetric coplanar strip fed monopole antenna for multiband applications," IEEE Trans. Antennas Propag., Vol. 55, 2351-2357, 2007.
doi:10.1109/TAP.2007.901847 Google Scholar

10. Li, Y.-S., W.-X. Li, and Q.-B. Ye, "A compact asymmetric coplanar strip-fed dual-band antenna for 2.4/5.8GHz WLAN applications," Microwave Opt. Technol. Lett., Vol. 55, 2066-2070, 2013.
doi:10.1002/mop.27741 Google Scholar

11. Liu, Y.-F., H. Qin, and L. Chen, "Compact triband ACS-fed monopole antenna employing openended slots forWLAN/WIMAX applications," Journal of Electromagnetic Waves and Applications, Vol. 28, No. 9, 1109-1117, 2014.
doi:10.1080/09205071.2014.906913 Google Scholar

12. Chen, L., Y.-F. Liu, and X.-L. Ma, "Compact ACS-fed circular-arc-shaped stepped monopole antenna for tri-band WLAN/WIMAX applications," Progress In Electromagnetics Research C, Vol. 51, 131-137, 2014.
doi:10.2528/PIERC14051206 Google Scholar

Dr. Long Chen

Dr. Yong-Lun Luo

Dr. Yun Zhang