A Broadband Suspended Plate Antenna with Dual Polarization for 2G/3G/Wi-Fi/4G/LTE

Year 2024, , 1205 - 1213, 01.09.2024

Emre Alp Miran , Burak Uzman , Tayfun Okan

https://doi.org/10.35378/gujs.1346074

Abstract

Design of a broadband, dual-polarized suspended patch antenna covering 2G/3G/Wi-Fi/4G bands (1710-2690 MHz) is presented. The prototype consists of two suspended plates and a feedline layer. Excitation of ±45 slant dual polarization is realized by a novel crossed elliptic-H slot. The prototype exhibits 48.7% impedance bandwidth (|S11|, |S22| < −15 dB) in 1660-2730 MHz. Port isolation (|S21|) is obtained as > 28 dB. In desired operating band, stable and symmetric radiation patterns with half-power beamwidths of 55-75 and 65-74 in E and H planes are measured, respectively. Gain variation lies within 8.3±0.8 dBi. Proposed antenna is low profile, has high port isolation and high front to back ratio without needing any secondary reflector ground plane. With these qualifications and performance specifications, it outperforms many of the similar works in the literature. Design considerations, simulations and measurement results of proposed antenna are presented and discussed.

Keywords

Dual-Polarization, Broadband, 2G/3G/Wi-Fi/4G/LTE, Suspended plate, Base station antenna

Supporting Institution

The Scientific and Technological Research Council of Turkey (TUBITAK)

Project Number

3201110

References

• [1] Ta, S.X., Park, I., and Ziolkowski, R.W., “Crossed dipole antennas: A review”, IEEE Antennas and Propagations Magazine, 57(5): 107-122, (2015).
• [2] Ding, C., Sun, H., Ziolkowski, R.W., and Guo, Y.J., “Simplified tightly-coupled cross-dipole arrangement for base station applications”, IEEE Access, 5: 27491–27503, (2017).
• [3] Luo, Y., Chu, Q.X., and Wen, D.L., “A plus/minus 45-degree dual-polarized base-station antenna with enhanced cross-polarization discrimination via addition of four parasitic elements placed in a square contour”, IEEE Transactions on Antennas and Propagation, 64(4): 1514–1519, (2016).
• [4] Wen, D.L., Zheng, D.Z., and Chu, Q.X., “A wideband differentially fed dual-polarized antenna with stable radiation pattern for base stations”, IEEE Transactions on Antennas and Propagation, 65(5): 2248–2255, (2017).
• [5] Wu, B.Q., Luk, K.M., “A broadband dual-polarized magneto-electric dipole antenna with simple feeds”, IEEE Antennas and Wireless Propagation Letters, 8: 60–63, (2009).
• [6] Xue, Q., Liao, S.W., and Xu, J.H., “A differentially-driven dual-polarized magneto-electric dipole antenna”, IEEE Transactions on Antennas and Propagation, 61(1): 425–430, (2013).
• [7] Zhou, S.G., Peng, Z.H., Huang, G.L., and Sim, C.Y.D., “Design of a novel wideband and dual-polarized magneto-electric dipole antenna”, IEEE Transactions on Antennas and Propagation, 65(5): 2645–2649, (2017).
• [8] Mak, K.M., Lai, H.W., and Luk, K.M., “A 5G wideband patch antenna with antisymmetric L-shaped probe feeds”, IEEE Transactions on Antennas and Propagation, 66(2): 957–961, (2018).
• [9] Jin, Y., Du, Z., “Broadband dual-polarized F-probe fed stacked patch antenna for base stations”, IEEE Antennas and Wireless Propagation Letters, 14: 1121–1124, (2015).
• [10] Ciydem, M., “Wideband dual polarized antenna”, Journal of the Faculty of Engineering and Architecture of Gazi University, 29(4): 817-821, (2014).
• [11] Ciydem, M., “Isolation enhancement in wideband dual‐polarised suspended plate antenna with modified T‐type probes,” Electronics Letters, 50(5): 338-339, (2014).
• [12] Ali, A., Ciydem, M., Altintas, A., Koc, S., “VHF suspended plate transmitter antenna design for DVB‐T and DAB‐T”, Microwave and Optical Technology Letters, 60(6): 1536-1546, (2018).
• [13] Serra, A.A., Nepa, P., Manara, G., Tribellini, G., and Cioci, S., “A wideband dual-polarized stacked patch antenna”, Antennas and Wireless Propagation Letters, 6: 141–143, (2007).
• [14] Barba, M., “A high isolation, wideband and dual linear polarization patch antenna”, IEEE Transactions on Antennas Propagation, 56(5): 1472–1476, (2008).
• [15] Gao, S.C., Li, L.W., Leong, M.S., and Yeo, T.S., “Dual-polarized slot-coupled planar antenna with wide bandwidth”, IEEE Transactions on Antennas Propagation, 51(3): 441–448, (2003).
• [16] Wang, Y., Du, Z., “Dual-polarized slot-coupled microstrip antenna array with stable active element pattern”, IEEE Transactions on Antennas and Propagation, 63(9): 4239–4244, (2015).
• [17] Gao, S.C., Li, L.W., Leong, M.S., and Yeo, T.S., “A broadband dual-polarized microstrip patch antenna with aperture coupling”, IEEE Transactions on Antennas and Propagation, 51(4): 898-900, (2003).
• [18] Ciydem, M., “A Low-Profile Dual-Polarized Antenna with High Isolation and High Front-to-Back Ratio for 5G Base Stations”, The Applied Computational Electromagnetics Society Journal (ACES), 36(9): 1229-1236, (2021).
• [19] Miran, E.A., Ciydem, M., “Dual-polarized elliptic-H slot-coupled patch antenna for 5G applications”, Turkish Journal of Electrical Engineering and Computer Sciences, 30(4): 1204-1218, (2022).