Vol. 104

Latest Volume
All Volumes
All Issues

Design of a Wideband Antenna for 5G Indoor Base Station Application

By Shihao Wu and Haoran Shi
Progress In Electromagnetics Research Letters, Vol. 104, 121-129, 2022


This paper presents a broadband antenna for 5G indoor micro base station, which has a low profile and simple structure. The proposed antenna avoids the traditional high-cost multilayer technology and is a low-cost configuration. It consists of a center fed circular patch with four shorting pins to properly stimulate the radiation mode of TM01 and TM31 internally. Next, four equally sized fan-shaped slots are opened in the radiator to further expand the bandwidth and improve the input impedance. |S11| < -10 dB simulation impedance bandwidth is about 51% from 3.11 to 5.24 GHz and covers 5G n78 (3.3-3.8 GHz) and n77 (3.3-4.2 GHz) and the n79 (4.4-5 GHz). The voltage standing wave ratio (VSWR) < 1.8 in the whole operating frequency band, which has good matching characteristics.


Shihao Wu and Haoran Shi, "Design of a Wideband Antenna for 5G Indoor Base Station Application," Progress In Electromagnetics Research Letters, Vol. 104, 121-129, 2022.


    1. Wen, S. and Y. Dong, "A low-profile vertically polarized antenna with conical radiation pattern for indoor micro base station application," IEEE Antennas Wireless Propag. Lett., Vol. 20, No. 2, Feb. 2021.

    2. Lee, K. F. and K. M. Luk, Microstrip Patch Antennas, Imperial College Press, London, U.K., 2011.

    3. Zhou, L., Y. Jiao, Y. Qi, Z. Weng, and L. Lu, "Wideband ceiling-mount omnidirectional antenna for indoor distributed antenna systems," IEEE Antennas Wireless Propag. Lett., Vol. 13, 836-839, 2014.

    4. Delaveaud, C., P. Leveque, and B. Jecko, "New kind of microstrip antenna: The monopolar wire-patch antenna," Electron. Lett., Vol. 30, No. 1, 1-2, 1994.

    5. Zhang, Z. Y., G. Fu, S. X. Gong, S. L. Zuo, and Q. Y. Lu, "Sleeve monopole antenna for DVB-H applications," Election. Lett., Vol. 46, No. 13, 879-880, Jun. 2010.

    6. Zuo, S. L., Y. Z. Yin, Z. Y. Zhang, and K. Song, "Enhanced bandwidth of low-profile sleeve monopole antenna for indoor base station application," Electron. Lett., Vol. 46, No. 24, 1587-1588, Nov. 2010.

    7. Al-Bawri, S. S., et al., "Multilayer base station antenna at 3.5 GHz for Future 5G Indoor Systems," 2019 First International Conference of Intelligent Computing and Engineering (ICOICE), 2019.

    8. Lau, K. L. and K. M. Luk, "A wide-band monopolar wire-patch antenna for indoor base station applications," IEEE Antenna Wireless Propag. Lett., Vol. 4, 155-157, 2005.

    9. Guo, Y. X., M. Y. W. Chia, Z. N. Chen, and K. M. Luk, "Wide-band L-probe fed circular patch antenna for conical-pattern radiation," IEEE Trans. Antennas Propag., Vol. 52, No. 4, 1115-1116, Apr. 2004.

    10. Batchelor, J. C., K. Voudouris, and R. J. Langley, "Dual mode and stacked concentric ring patch antenna array," Electron. Lett., Vol. 29, No. 15, 1319-1320, Jul. 1993.

    11. Economou, L. and R. J. Langley, "Patch antenna equivalent to simple monopole," Electron. Lett., Vol. 33, No. 9, 727-728, Apr. 1997.

    12. González-Posadas, V., D. Segovia-Vargas, E. Rajo-Iglesias, J. L. Vázquez-Roy, and C. Martín-Pascual, "Approximate analysis of short circuited ring patch antenna working at TM01 mode," IEEE Trans. Antennas Propag., Vol. 54, No. 6, 1875-1879, Jun. 2006.

    13. Liu, J., Q. Xue, H. Wong, H. Lai, and Y. Long, "Design and analysis of a low-profile and broadband microstrip monopolar patch antenna," IEEE Trans. Antennas Propag., Vol. 61, No. 1, 11-18, Jan. 2013.

    14. Liu, J., S. Zheng, Y. Li, and Y. Long, "Broadband monopolar microstrip patch antenna with shorting vias and coupled ring," IEEE Antennas Wireless Propag. Lett., Vol. 13, 39-42, 2014.

    15. Wolff, I. and N. Knoppik, "Rectangular and circular microstrip disk capacitors and resonators," IEEE Transactions on Microwave Theory and Techniques, Vol. 22, No. 10, 857-864, Oct. 1974.