A Low-Profile Broadband Dual-Polarized Base Station Antenna Array With Well-Suppressed Cross-Polarization

A low-profile wideband dual-polarized antenna with nonuniform metasurface

“…In [21,22], not only the impedance bandwidth is improved, but also the gain is improved through the metasurface. In [23], metasurfaces can also be used to suppress crosspolarization. According to the specific design purpose and practical application, the metasurface is a good choice to improve antenna performance such as low profile, stable gain, and so on [24,25].…”

A low‐profile dual‐band dual‐polarized tightly spaced antenna array with artificial magnetic conductor surface for 5G micro base station application

“…In China, 5G operational license has been granted to four telecom operators, in which China Mobile has obtained the frequency band of 2.515–2.675 GHz and 4.8–4.9 GHz. As one of the most important components in 5G communication system, base station antennas have therefore attracted much attention 1–8 . In these base stations, the adoption of dual‐polarized antenna is prevalent, as it can effectively reduce the path loss and external interference.…”

“…As one of the most important components in 5G communication system, base station antennas have therefore attracted much attention. [1][2][3][4][5][6][7][8] In these base stations, the adoption of dual-polarized antenna is prevalent, as it can effectively reduce the path loss and external interference. In addition, the recent development of diversified smart devices requires extensive deployment of micro base stations, for which the antenna must be both compact and of low profile.…”

“…Compared with antenna in ref. [8][9][10][11][12][13][14][15][16][17], the distance between the radiator and the reflector is further reduced to 0.03 λ 0 (λ 0 is the free-space wavelength at 2.6 GHz), and four tightly spaced pairs of perpendicular annular dipoles with S-shaped decoupling structure are utilized to achieve high-unidirectional radiation in both bands. The final antenna, with a size of 1.04 λ 0  1.04 λ 0  0.065 λ 0 (120 mm  120 mm  7.5 mm), has an impedance bandwidth of 13.8% (2.44-2.80 GHz) and 6% (4.75-5.03 GHz) for jS 11 j < À10 dB, covering both 2.515-2.675 GHz and 4.8-4.9 GHz bands of China Mobile.…”

A broadband dual‐polarised antenna with L‐shaped strips for long‐term evolution/5G application

“…An artificial magnetic conductor reflector is used to lower antenna height (0.12λ 0 ) for 5G communication applications in ref. [17], but it only covers 3.14-5.32 GHz (51.5%). Miniaturisation is implemented in these antennas [18][19][20][21].…”