A COMPACT PRINTED UWB PACMAN-SHAPED MIMO ANTENNA WITH TWO FREQUENCY REJECTION BANDS

(Received: 2015-11-23, Revised: 2015-12-13 , Accepted: 2016-01-07)

Authors Shaimaa Naser, Nihad Dib,

Keywords #Ultra-wideband (UWB) antennas #Circular monopole antenna #Multiple-Input Multiple-Output (MIMO)

Abstract In this paper, the design, analysis and prototyping of a microstrip-fed, low profile, compact ultra-wideband (UWB) monopole antenna with two band notches are presented. The antenna is then used in two multiple-input multiple-output (MIMO) configurations. The antennas are mounted on a low cost FR-4 substrate of a dielectric constant of 4.4. The original shape of the single antenna element is circular with a radius of 11.5 mm, then a sector is removed from the patch (making it a Pacman-shaped antenna) to improve the impedance bandwidth. The proposed antennas provide an impedance bandwidth between 2.9-15 GHz with better than 10 dB return loss and isolation of more than 16 dB and 19 dB for the first and the second MIMO configurations, respectively. Additionally, the antennas can reject the interferences from Worldwide Interoperability for Microwave Access (WiMAX) (3.5 GHz center frequency) and Wireless Local Area Network (WLAN) (5.5 GHz center frequency).

References

[1] M. Khanl, M. F. Shafique, A. Capobianco, E. Autizi and I. Shoaib, "Compact UWB-MIMO Antenna Array with a Novel Decoupling Structure," IEEE, International Bhurban Conference on Applied Sciences and Technology (IBCAST), pp. 347-350, Islamabad, Pakistan, 15-19 Jan. 2013.

[2] A. Najam, Y. Duroc and S. Tedjni, "UWB-MIMO Antenna with Novel Stub Structure," Progress in Electromagnetics Research C, vol. 19, pp. 245-257, 2011.

[3] Ch. Mao and Q. Chu, "Compact Coradiator UWB-MIMO Antenna with Dual Polarization," IEEE Transactions on Antennas and Propagation, vol. 62, no. 9, pp. 4474-4480, September 2014.

[4] J. Zhao, Z. Zhang, Q. Liu, G. Fu and Sh. Gong, "Printed UWB MIMO Antenna with Different Polarizations and Band-Notch Characteristics," Progress in Electromagnetics Research Letters, vol. 46, pp. 113-118, 2014.

[5] M. Jusoh, M. Jamlos, M. Kamarudin and F. Malek, "A MIMO Antenna Design Challenges for UWB Applications," Progress in Electromagnetics Research B, vol. 36, pp. 357-371, 2012.

[6] P. Gao, Sh. He, X. Wei, Z. Xu, N. Wang and Y. Zheng, "Compact Printed UWB Diversity Slot Antenna with 5.5-GHz Band-Notched Characteristics," IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 367-379, 2014.

[7] Y. Cheng, W. Lu and Ch. Cheng, "Printed Diversity Antenna for Ultra-Wideband Applications," 2010 IEEE International Conference on Ultra-Wideband (ICUWB2010), vol. 1, pp. 1-4, 20-23 September 2010.

[8] J. Ren, D. Mi and Y. Yin, "Compact Ultra-Wideband MIMO Antenna with WLAN/UWB Bands Coverage," Progress in Electromagnetics Research C, vol. 50, pp. 121-129, 2014.

[9] L. Liu, S. Cheung and T. I. Yuk, "Compact MIMO Antenna for Portable Devices in UWB Applications," IEEE Transactions on Antennas and Propagation, vol. 61, no. 8, pp. 4257-4264, August 2013.

[10] J. Liang, Ch. Chiau, X. Chen and C.-G.Parini, "Study of a Printed Circular Disc Monopole Antenna for UWB Systems," IEEE Transactions on Antennas and Propagation, vol. 53, no. 11, pp. 3500-3504, November 2005.

[11] T. Wu, H. Bai, P. Li and X. Shi, "A Simple Planar Monopole UWB Slot Antenna with Dual Independently and Reconfigurable Band-Notched Characteristics," International Journal of RF and Microwave Computer-Aided Engineering, vol. 24, issue 6, pp. 706-712, November 2014.

[12] J. Ren and Y.-Z. Yin, "A Compact Dual Band-Notched Ultra Wideband Antenna with λ/4 Stub and Open Slots," Progress in Electromagnetics Research C, vol. 49, pp. 133-139, 2014.

[13] Y.-S. Li, X.-D. Yang, Q. Yang and C.-Y. Liu, "Compact Coplanar Waveguide Fed Ultra-Wideband Antenna with a Notch Band Characteristic," International Journal of Electronics and Communications, vol. 65, no. 11, pp. 961-966, 2011.

[14] J. Zang and X. Wang, "A Compact C-shaped Printed UWB Antenna with Band-Notched Characteristic," Progress in Electromagnetics Research Letters, vol. 43, pp. 15-23, 2013.

[15] M. Ojaroudi, G. Ghanbari, N. Ojaroudi and C. Ghobadi, "Small Square Monopole Antenna for UWB Applications with Variable Frequency Band-Notch Function," IEEE Antennas and Wireless Propagation Letters, vol. 8, pp. 1061-1064, 2009.

[16] ANSYS-High Frequency Structure Simulator (HFSS), Ansys, Inc., Canonsburg, Pennsylvania, USA, 2011.

[17] S. Mumby and J. Yuan, "Dielectric Properties of FR-4 Laminates as a Function of Thickness and the Electrical Frequency of the Measurement," Journal of Electronic Materials, vol. 18, issue 2, pp. 287-292, March 1989.

[18] M. S. Sharawi, "Printed Multi-Band MIMO Antenna Systems and Their Performance Metrics," IEEE Antennas and Propagation Magazine, vol. 55, no. 5, pp. 218-232, October 2013.

[19] M. S. Sharawi, "Printed MIMO Antenna Systems: Performance Metrics, Implementations and Challenges", (invited paper), Forum in Electromagnetic Research Methods and Application Technologies (FERMAT), ART-2014-01-010, pp. 1-11, February 2014.

[20] M. S. Sharawi, Printed MIMO Antenna Engineering, Artech House, ISBN: 978-1-60807-681-9, 2014.

[21] M. Manteghi and Y. Rahmat-Samii, "Broadband Characterization of the Total Active Reflection Coefficient of Multiport Antennas," IEEE Antennas and Propagation Society International Symposium, vol. 3, pp. 20-23, 22-27 June 2003.

[23] M. Sharawi, "A 5-GHz 4/8-Elements MIMO Antenna System for IEEE 802.11AC Devices," Microwave and Optical Technology Letters, vol. 55, no. 7, pp. 1589-1594, July 2013.