A Low Profile, Wideband and Dual-Polarized Base Station Antenna Based on the Dipole with High Input Impedance

被引：0
|
作者：
Huang, He [1 ]
Ma, Rui-Hua [1 ]
机构：
[1] School of Aerospace Science and Technology, Xidian University, Shaanxi, Xi’an
来源：
Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2024年 / 52卷 / 07期
基金：
中国国家自然科学基金;
关键词：
base station; dipole antenna; dual-polarized antenna; input impedance; low profile antenna; wideband antenna;
D O I：
10.12263/DZXB.20240018
中图分类号：
学科分类号：
摘要：
In this paper, a wideband, dual-polarized antenna with extremely low profile is developed for base station application. The antenna evolved from two fan-shaped dipoles that crossed each other. By adding annular branches and met-allized through holes at the end of the dipole, its port input impedance increases when the antenna occupies a lower height. Besides, the flare angle of the fan-shaped arm is increased so that a second resonant point can be generated to achieve the purpose of expanding the bandwidth. The dual-polarized antenna can provide a bandwidth of 22% in the 2.17~2.7 GHz band. Because the two dipoles is highly symmetrical about the geometric center, the isolation degree and cross polarization discrimination are high in the working frequency band, among which the simulation value of the isolation degree can reach 51 dB, and the simulation value of the cross polarization discrimination in the 0° can reach 48 dB. In addition, the simulated peak gain of the antenna is as high as 9.6 dBi. The antenna has the advantages of high isolation, high cross-polarization discrimination and high gain, and has a good application prospect in the base station system. © 2024 Chinese Institute of Electronics. All rights reserved.
引用
收藏
页码：2300 / 2306
页数：6
相关论文
共 18 条
  • [1] YE L H, CHEN G R, SHI X, Et al., Miniaturized broadband dual-polarized MIMO antenna array with stable radiation pattern for base-station application, IEEE Transactions on Antennas and Propagation, 71, 8, pp. 6688-6697, (2023)
  • [2] SUN S Y, DING C, JIANG W, Et al., Simultaneous suppression of cross-band scattering and coupling between closely spaced dual-band dual-polarized antennas, IEEE Transactions on Antennas and Propagation, 71, 8, pp. 6423-6434, (2023)
  • [3] LI J G, LI J K, YIN J, Et al., A miniaturized dual-band dual-polarized base station antenna loaded with duplex baluns, IEEE Antennas and Wireless Propagation Letters, 22, 7, pp. 1756-1760, (2023)
  • [4] JIANG Z N, WANG Z X, NIE L Y, Et al., A low-profile ultrawideband slotted dipole antenna based on artificial magnetic conductor, IEEE Antennas Wireless Propagation Letters, 21, 4, pp. 671-675, (2022)
  • [5] WANG B, LIAO C Y, DU C H., A low-profile broadband dual-polarized base station antenna array with well-suppressed cross-polarization, IEEE Transactions on Antennas and Propagation, 69, 12, pp. 8354-8365, (2021)
  • [6] LI M, LI Q L, WANG B, Et al., A miniaturized dual-band base station array antenna using band notch dipole antenna elements and AMC reflectors, IEEE Transactions on Antennas and Propagation, 66, 6, pp. 3189-3194, (2018)
  • [7] LI M, LI Q L, WANG B, Et al., A low profile dual-polarized dipole antenna using wideband AMC reflector, IEEE Transactions on Antennas and Propagation, 66, 5, pp. 2610-2615, (2018)
  • [8] ZHAI H Q, XI L, ZANG Y P, Et al., A low-profile dual-polarized high-isolation MIMO antenna arrays for wideband base-station applications, IEEE Transactions on Antennas and Propagation, 66, 1, pp. 191-202, (2018)
  • [9] SUN S, WANG S T, SUN H C., A dual-band quad-polarization reconfigurable antenna, Acta Electronica Sinica, 51, 8, pp. 2168-2178, (2023)
  • [10] GAO Y, MA R B, WANG Y P, Et al., Stacked patch antenna with dual-polarization and low mutual coupling for massive MIMO, IEEE Transactions on Antennas and Propagation, 64, 10, pp. 4544-4549, (2016)
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