A compact coplanar waveguide-fed tri-band monopole antenna for WLAN/WiMAX applications is proposed. By employing a pair of inverted-L slots etched on the ground plane and a split-ring resonator (SRR) and further carefully adjusting the lengths and positions of these structures, two notched bands can be obtained. Measured results show that a tri-band of 280 MHz (2.28-2.56 GHz), 920 MHz (3.29-4.21 GHz), and 860 MHz (5.05-5.91 GHz) with reflection coefficient less than -10 dB is obtained covering all the 2.4/5.2/5.8 GHz WLAN bands and 3.5/5.5 GHz WiMAX bands. In addition, good dipole-like radiation characteristics over the required bands is achieved in both E- and H-planes.
2. Dong, X., Z. Liao, J. Xu, Q. Cai, and G. Liu, "Multiband and wideband planar antenna for WLAN and WiMAX applications," Progress In Electromagnetics Research Letters, Vol. 46, 101-106, 2014.
doi:10.2528/PIERL14050103
3. Chen, H., X. Yang, Y.-Z. Yin, S.-T. Fan, and J.-J. Wu, "Triband planar monopole antenna with compact radiator for WLAN/WiMAX applications," IEEE Antennas Wirel. Propag. Lett., Vol. 12, 1440-1443, 2013.
doi:10.1109/LAWP.2013.2287312
4. Huang, S. S., J. Li, and J. Z. Zhao, "A novel compact planar triple-band monopole antenna for WLAN/WiMAX applications," Progress In Electromagnetics Research Letters, Vol. 50, 117-123, 2014.
doi:10.2528/PIERL14072905
5. Yoon, J.-H., "Triple-band cpw-fed monopole antenna with three branch strips for WLAN/WiMAX triple-band application," Microw. Opt. Technol. Lett., Vol. 57, 161-166, 2015.
doi:10.1002/mop.28798
6. Huang, H.-F. and Y.-H. Hu, "A compact dual-band printed monopole antenna forWiMAX/WLAN applications," Progress In Electromagnetics Research Letters, Vol. 49, 91-97, 2014.
doi:10.2528/PIERL14072203
7. Ellis, M. S., Z. Zhao, J. Wu, Z.-P. Nie, and Q. H. Liu, "A new compact microstrip-fed monopole antenna for triple band WLAN/WiMAX applications," Progress In Electromagnetics Research Letters, Vol. 48, 129-135, 2014.
doi:10.2528/PIERL14061004
8. Xu, Y., Y.-C. Jiao, and Y.-C. Luan, "Compact CPW-fed printed monopole antenna with triple-band characteristics for WLAN/WiMAX applications," Electron. Lett., Vol. 48, No. 24, 1519-1520, 2012.
doi:10.1049/el.2012.3255
9. Peng, C.-M., I.-F. Chen, and J.-W. Yeh, "Printed broadband asymmetric dual-loop antenna for WLAN/WiMAX applications," IEEE Antennas Wirel. Propag. Lett., Vol. 12, 898-901, 2013.
doi:10.1109/LAWP.2013.2273231
10. Si, L.-M., Q.-L. Zhang, W.-D. Hu, W.-H. Yu, Y.-M. Wu, X. Lv, and W.-R. Zhu, "A uniplanar triple-band dipole antenna using complementary capacitively loaded loop," IEEE Antennas Wirel. Propag. Lett., Vol. 14, 743-746, 2015.
doi:10.1109/LAWP.2015.2396907
Submit
