A Low-Profile Circularly Polarized Magnetic-Electric Dipole Antenna Array

Authors

  • Pingyuan Zhou School of Information and Electronics Beijing Institute of Technology, Beijing, 100081, China
  • Mang He School of Information and Electronics Beijing Institute of Technology, Beijing, 100081, China
  • Wen Tian School of Information and Electronics Beijing Institute of Technology, Beijing, 100081, China
  • Chuanfang Zhang School of Information and Electronics Beijing Institute of Technology, Beijing, 100081, China

Keywords:

Circularly polarized antenna, magnetoelectric dipole antenna, small size, wideband

Abstract

A low-profile circularly polarized (CP) magneto-electric dipole (MED) antenna array is presented in this paper. By tilting the vertical walls of a MED with two protruded stubs being orthogonal to the horizontal patches and by using a staircase-shaped feeding strip, a wideband CP MED antenna is formed. In comparison to the conventional MED, the profile of the antenna is reduced from 0.25λc to only 0.07λc at the center frequency of the operating band. The sequentially rotated feeding (SRF) network is employed to construct a 2×2 array with enhanced 3 dB axial-ratio (AR) bandwidth. The overall size of the array is as compact as 1.33λc×1.33λc×0.07λc, and the measured results show that the usable overlapped bandwidth of the reflection coefficient |S11|< -10 dB and AR< 3 dB is 31.2%, covering 1.76 GHz to 2.41 GHz. The peak gain of the array is 12.9 dBic with the gain variation being less than 3 dB within the 1.85-2.32 GHz band, and the front-backratio (FBR) is greater than 20 dB. The proposed array is promising in the applications for portable and individual communication devices for wireless communications.

Downloads

Download data is not yet available.

References

K. M. Luk and H. Wong, “A new wideband unidirectional antenna element,” Int. J. Microw. Opt. Technol., vol. 1, no. 1, pp. 35-44, June 2006.

H. Wong, K. M. Mak, and K. M. Luk, “Wideband shorted bowtie patch antenna with electric dipole,” IEEE Trans. Antennas Propag., vol. 56, no. 7, pp. 2098-2101, July 2008.

L. Ge and K. M. Luk, “A magneto-electric dipole antenna with low-profile and simple structure,” IEEE Antennas Wireless Propag. Lett., vol. 12, pp. 140-142, 2013.

L. Ge and K. M. Luk, “A low-profile magnetoelectric dipole antenna,” IEEE Trans. Antennas Propag., vol. 60, no. 4, pp. 1684-1689, Apr. 2012.

He K, Gong S, and Gao F, “Low-profile wideband unidirectional patch antenna with improved feed structure,” Electronics Lett., vol. 51, no. 4, pp. 317- 319, 2015.

K. M. Luk and B. Wu, “The magneto-electric dipole-a wideband antenna for base stations in mobile communications,” Proc. IEEE, vol. 100, no.7, pp. 2297-2307, 2012.

C. Ding and K. M. Luk, “Low-profile magnetoelectric dipole antenna,” IEEE Antennas Wireless Propag. Lett., vol. 15, pp.1642-1644, 2016.

M. Li and K.-M. Luk, “A low-profile, lowbacklobe and wideband complementary antenna for wireless application,” IEEE Trans. Antennas Propag., vol. 63, no. 1, pp. 7-14, Jan. 2015.

M. Li and K.-M. Luk, “A low-profile wideband planar antenna,” IEEE Trans. Antennas Propag., vol. 61, no. 9, pp. 4411-4418, Sep. 2013.

C. Y. Shuai and G. M. Wang, “Substrate-integrated low-profile unidirectional antenna,” IET Microw. Antennas Propag., vol. 12, no. 2, pp. 185-189, Feb. 2018.

H. W. Lai and H. Wong, “Substrate integrated magneto-electric dipole antenna for 5G wi-fi,” IEEE Trans. Antennas Propag., vol. 63, no. 2, pp. 870-874, Feb. 2015.

K. M. Mak and K. M. Luk, “A circularly polarized antenna with wide axial ratio beamwidth,” IEEE Trans. Antennas Propag., vol. 57, no. 10, pp. 3309- 3312, Oct. 2009.

S. X. Ta and I. Park, “Crossed dipole loaded with magneto-electric dipole for wideband and widebeam circularly polarized radiation,” IEEE Antennas Wireless Propag. Lett., vol. 14, pp. 358- 361, 2015.

K. Kang, Y. Shi, and C. H. Liang, “A wideband circularly polarized magneto electric dipole antenna,” IEEE Antennas Wireless Propag. Lett., vol. 16, pp. 1647-1650, 2017.

M. Li and K. M. Luk, “A wideband circularly polarized antenna for microwave and millimeterwave applications,” IEEE Trans. Antennas Propag., vol. 62, no. 4, pp. 1872-1879, Apr. 2014.

P.S. Hall, J. S. Dahele, and J. R. James, “Design principles of sequentially fed wide bandwidth circularly polarized microstrip antennas,” in Proc.Inst. Elect. Eng., vol. 136, no. 5, pp. 381-389, Oct. 1989.

P. S. Hall, “Application of sequential feeding to wide bandwidth, circularly polarised microstrip patch arrays,” in Proc. Inst. Elect. Eng., vol. 136, no. 5, pp. 390-398, Oct. 1989.

C. A. Balanis, Antenna Theory: Analysis and Design. 3rd Edition, John Wiley and Sons, New York, 2005.

K. Ding, C. Gao, T. Yu, D. Qu, and B. Zhang, “Gain-improved broadband circularly polarized antenna array with parasitic patches,” IEEE Antennas Wireless Propag. Lett., vol. 16, pp. 1468- 1471, 2017.

W. Hu, D. Inserra, G. Wen, and Z. Chen, “Wideband low axial ratio and high-gain sequentially rotated antenna array,” IEEE Antennas Wireless Propag. Lett., vol. 17, no. 12, pp. 2264- 2268, Dec. 2018.

C. Deng, Y. Li, Z. Zhang, and Z. Feng, “A wideband sequential-phase fed circularly polarized patch array,” IEEE Trans. Antennas Propag., vol. 62, no. 7, pp. 3890-3893, July 2014.

W. Yang, J. Zhou, Z. Yu, and L. Li, “Bandwidthand gain-enhanced circularly polarized antenna array using sequential phase feed,” IEEE Antennas Wireless Propag. Lett., vol. 13, pp. 1215-1218, 2014.

Y. Li, Z. Zhang, and Z. Feng, “A sequential-phase feed using a circularly polarized shorted loop structure,” IEEE Trans. Antennas Propag., vol. 61, no. 3, pp. 1443-1447, Mar. 2013.

M. Akbari, S. Gupta, and A. R. Sebak, “Sequential feeding networks for subarrays of circularly polarized patch antenna,” 2016 IEEE Int. Symp. Antennas Propag. (APSURSI), Fajardo, pp. 587- 588, 2016.

Downloads

Published

2019-12-01

How to Cite

[1]
Pingyuan Zhou, Mang He, Wen Tian, and Chuanfang Zhang, “A Low-Profile Circularly Polarized Magnetic-Electric Dipole Antenna Array”, ACES Journal, vol. 34, no. 12, pp. 1837–1844, Dec. 2019.

Issue

Section

General Submission