Dual‐polarised high‐gain triple‐band differential antenna for WLAN and Sub‐6 GHz 5G applications. Issue 3 (28th January 2020)

• Record Type: Journal Article
• Authors: Jin, Guiping; Zeng, Guangjie; Yang, Ju; Xu, Yechun; Liao, Shaowei
• Is Part Of: IET microwaves, antennas & propagation. Volume 14:Issue 3(2020)
• Page Start: 189
• Page End: 193
• Publication Date: 2020-01-28
• Subjects: antenna feeds -- wireless LAN -- UHF antennas -- electromagnetic wave polarisation -- microwave antennas -- antenna radiation patterns -- 5G mobile communication -- radio access networks; WLAN band -- notch band -- low‐frequency band -- intermediate frequency band -- high‐frequency band -- differential feeding scheme -- high‐frequency radiator -- low‐frequency radiators -- dual‐polarised high‐gain triple‐band differential‐fed antenna -- 5G wireless access point systems -- frequency 2.45 GHz -- frequency 3.8 GHz to 4.8 GHz -- frequency 6 GHz -- frequency 5 GHz -- gain 10 dB -- bandwidth 2.37 GHz to 2.61 GHz -- bandwidth 3.27 GHz to 3.76 GHz -- bandwidth 4.87 GHz to 5.98 GHz; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2019.0566
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : A new dual‐polarised high‐gain triple‐band differential‐fed antenna is proposed in this study. The antenna adopts a differential feeding scheme, in which a high‐frequency radiator for 3.5 GHz Sub‐6 GHz 5G band and 5 GHz WLAN band, and two pairs of low‐frequency radiators for 2.45 GHz WLAN band are effectively combined to obtain multiband operation. To filter out unwanted frequency band, four half‐wavelength slots are introduced to generate a notch band between 3.8 and 4.8 GHz. Experimental results show that the proposed antenna achieves 10‐dB impedance bandwidths of 2.37–2.61 GHz for the low‐frequency band, 3.27–3.76 GHz for the intermediate frequency band, and 4.87–5.98 GHz for the high‐frequency band. The gains of the antenna are all above 8.0 dBi for all the three bands. The antenna exhibits a good directivity and low cross‐polarisation level (below −20 dB); thus it is a good candidate for WLAN and Sub‐6 GHz 5G wireless access point systems.