Vol. 61

Latest Volume
All Volumes
All Issues

A Quad-Band CPW Fed Slot Antenna Array for LTE and WiMAX Applications

By Manzoor Elahi, Rizwan Khan, Azremi Abdullah Al-Hadi, Saeeda Usman, Ping Jack Soh, and Habibullah Khan
Progress In Electromagnetics Research M, Vol. 61, 159-167, 2017


In this work, a quad-band omnidirectional slot antenna array is proposed. The structure consists of two closely-spaced radiating elements fed using coplanar waveguide (CPW) line. This combined structure is then integrated in a tapered slot etched on the antenna to enable operation in four frequency bands (0.8, 1.8, 2.6 and 3.45 GHz) for LTE and WiMAX applications with at least -10 dB of reflection coefficient. The antenna dimensional parameters are also studied to understand its behaviour and e ects on its performance in facilitating the optimization process. Measurements of the fabricated antenna on a low-cost FR4 substrate validate its operation centred at 0.845 (from 0.77 to 0.92 GHz), 1.74 (from 1.59 to 1.9 GHz), 2.655 (2.59 to 2.72 GHz) and 3.49 GHz (from 3.28 to 3.7 GHz). Meanwhile, simulated and measured radiation patterns of the proposed antenna in all bands agree well and are omnidirectional, making is suitable for application in mobile terminals.


Manzoor Elahi, Rizwan Khan, Azremi Abdullah Al-Hadi, Saeeda Usman, Ping Jack Soh, and Habibullah Khan, "A Quad-Band CPW Fed Slot Antenna Array for LTE and WiMAX Applications," Progress In Electromagnetics Research M, Vol. 61, 159-167, 2017.


    1. Holma, H., A. Toskala, K. Ranta-Aho, and J. Pirskanen, "High-speed packet access evolution in 3 gpp release 7 [topics in radio communications]," IEEE Communications Magazine, Vol. 45, No. 12, 29-35, 2007.

    2. Mun, B., F. J. Harackiewicz, B. Kim, H. Wi, J. Lee, M. J. Park, and B. Lee, "New configuration of handset MIMO antenna for LTE 700 band applications," International Journal of Antennas and Propagation, 2013.

    3. Schaubert, D. H., "A review of some microstrip antenna characteristics," Microstrip Antennas, 59-67, 1995.

    4. Soliman, E. A., S. Brebels, G. Vandenbosch, and E. Beyne, "X-band brick wall antenna fed by CPW," Electronics Letters, Vol. 34, No. 9, 836-838, 1998.

    5. Miao, M., B. L. Ooi, and P. S. Kooi, "Broadband CPW-fed wide slot antenna," Microwave and Optical Technology Letters, Vol. 25, No. 3, 206-211, 2000.

    6. Liu, H. C., T. S. Horng, and N. G. Alexopoulos, "Radiation of printed antennas with a coplanar waveguide feed," IEEE Transactions on Antennas and Propagation, Vol. 43, No. 10, 1143-1148, 1995.

    7. Sayem, A. and M. Ali, "Characteristics of a microstrip-fed miniature printed Hilbert slot antenna," Progress In Electromagnetics Research, Vol. 56, 1-18, 2006.

    8. Eldek, A. A., A. Z. Elsherbeni, and C. E. Smith, "Dual-wideband square slot antenna with a U-shaped printed tuning stub for personal wireless communication systems," Progress In Electromagnetics Research, Vol. 53, 319-333, 2005.

    9. Sadat, S. and S. D. S. Javan, "Design of a microstrip square-ring slot antenna filled by an H-shape slot for UWB applications," 2007 IEEE Antennas and Propagation Society International Symposium, 705-708, IEEE, 2007.

    10. Huang, J. F., "A simple model of designing CPW-fed slot antenna," 2nd International Conference on Microwave and Millimeter Wave Technology, ICMMT, 383-386, IEEE, 2000.

    11. Bhobe, A. U., C. L. Holloway, M. Piket-May, and R. Hall, "Coplanar waveguide fed wideband slot antenna," Electronics Letters, Vol. 36, No. 16, 1340-1342, 2000.

    12. Waterhouse, R. B. and D. Novak, "Small folded CPW fed slot antennas," 2006 IEEE Antennas and Propagation Society International Symposium, 2599-2602, IEEE, 2006.

    13. Saed, M. A., "Reconfigurable broadband microstrip antenna fed by a coplanar waveguide," Progress In Electromagnetics Research, Vol. 55, 227-239, 2005.

    14. Kumar, A., "A compact H-shaped slot triple-band microstrip antenna for WLAN and WiMAX applications," 2016 IEEE Annual India Conference (INDICON), 1-4, IEEE, 2016.

    15. Avila, D. R., S. P. Garc´ıa, Y. P.Marrero, A. S. de Vera, F.M. Rizo, J. V. L. Sanz, and A. T. Puente, "Multiband CPW-fed slot antennas," 10th European Conference on Antennas and Propagation (EuCAP), 1-4, IEEE, 2016.

    16. Joseph, S., B. Paul, S. Mridula, and P. Mohanan, "CPW-fed compact multiband antennas using circular monopole with hexagonal slot," Fifth International Conference on Advances in Computing and Communications (ICACC), 287-290, IEEE, 2015.

    17. Wang, Y., Q. Y. Zhang, and Q. X. Chu, "Triple-band monopole antenna with dual-sleeves inside the ground plane," Asia Pacific Microwave Conference, APMC 2009, 1980-1983, IEEE, 2009.

    18. Cai, L. Y., G. Zeng, and H. C. Yang, "Compact triple band antenna for Bluetooth/WiMAX/WLAN applications," International Symposium on Signals Systems and Electronics (ISSSE), Vol. 2, 1-4, IEEE, 2010.

    19. Bhaskar, S., R. S. Brar, and A. K. Singh, "Compact planar rectangular monopole antenna for Bluetooth and UWB applications," International Conference on Electrical, Computer and Electronics Engineering (UPCON), 2016 IEEE Uttar Pradesh Section, 138-141, IEEE, 2016.

    20. Lin, T., L. Song, S. Liu, Y. Wang, and Z. Li, "Novel conformal Vivaldi antenna fed by CPW," 2016 IEEE International Conference on Microwave and Millimeter Wave Technology (ICMMT), Vol. 2, 725-727, IEEE, 2016.

    21. Wang, J. and Y. Yang, "A compact four bands microstrip patch antenna with coplanar waveguide feed," 3rd Asia-Pacific Conference on Antennas and Propagation (APCAP), 33-36, IEEE, Vancouver, 2014.

    22. Li, H., Y. Zhou, X. Mou, Z. Ji, H. Yu, and L. Wang, "Miniature four-band CPW-fed antenna for RFID/WiMAX/WLAN applications," IEEE Antennas and Wireless Propagation Letters, Vol. 13, 1684-1688, 2014.

    23. Soler, J., F. J. Gonzalez, C. Puente, and J. Anguera, "Advances in loading techniques to design multifrequency monopole antennas," Microwave and Optical Technology Letters, Vol. 41, No. 6, 434-437, 2004.

    24. Verma, S. and P. Kumar, "Compact triple-band antenna for WiMAX and WLAN applications," Electronics Letters, Vol. 50, No. 7, 484-486, 2014.

    25. Wang, C. J. and K. L. Hsiao, "CPW-fed monopole antenna for multiple system integration," IEEE Transactions on Antennas and Propagation, Vol. 62, No. 2, 1007-1011, 2014.

    26. Zahraoui, I., J. Zbitou, A. Errkik, E. Abdelmounim, A. Tajmouati, and M. Latrach, "Novel low cost compact printed antenna CPW-fed for GSM, GPS and PCS applications," Third International Workshop on RFID and Adaptive Wireless Sensor Networks (RAWSN), 48-51, IEEE, 2015.

    27. Singsura, P., P. Chomtong, S. Meesomklin, and P. Akkaraekthalin, "A multiband monopole antenna with double square slots and capacitive CPW feed for LTE, WiMAX and WLAN systems," 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 1-5, IEEE, 2015.

    28. Chomtong, P. and P. Akkaraekthalin, "A multiband slot CPW antenna using capacitive feed and interdigital capacitor for GSM, WiMAX and WLAN systems," Asia-Pacific Conference on Communications (APCC), 446-449, IEEE, 2014.

    29. Wadell, B. C., Transmission Line Design Handbook, Artech House, 1991.