Design of broadband dual-band dual circularly polarized millimeter wave antenna for 5G mobile devices

Yang Xuan; Yao Daibo; Yang Chengkun; Guo Qinggong

doi:10.11884/HPLPB202335.230216

Volume 35 Issue 10

Oct. 2023

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Article Navigation > High Power Laser and Particle Beams > 2023 > 35(10): 103003

Yang Xuan, Yao Daibo, Yang Chengkun, et al. Design of broadband dual-band dual circularly polarized millimeter wave antenna for 5G mobile devices[J]. High Power Laser and Particle Beams, 2023, 35: 103003. doi: 10.11884/HPLPB202335.230216

Citation:

Yang Xuan, Yao Daibo, Yang Chengkun, et al. Design of broadband dual-band dual circularly polarized millimeter wave antenna for 5G mobile devices[J]. High Power Laser and Particle Beams, 2023, 35: 103003. doi: 10.11884/HPLPB202335.230216

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Design of broadband dual-band dual circularly polarized millimeter wave antenna for 5G mobile devices

doi: 10.11884/HPLPB202335.230216

College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China

Received Date: 2023-07-11
Accepted Date: 2023-09-12
Rev Recd Date: 2023-09-12

Available Online: 2023-09-16

Publish Date: 2023-10-08

Abstract

Abstract

A broadband dual-band dual circularly polarized millimeter wave single-fed antenna is designed. The antenna operates in n257(26.5−29.5 GHz) and n260(37.0−40.0 GHz) bands simultaneously. Compared with the traditional circularly polarized antenna, irregular patches stacked up and down are used to realize dual-band dual-circular polarization and improve the isolation of signal reception and transmission. By adding a curved parasitic patch, the antenna extends the axial ratio bandwidth. Rectangular gaps in the metal-frame are used to improve the antenna gain and expand the antenna bandwidth. The measurement results show that the relative impedance (<−10 dB) bandwidth at low frequency and high frequency are 20.4% and 17.0% respectively, and the relative axial ratio (<3 dB) bandwidth of dual-band dual-circular polarization are 14.9% and 11.4% respectively. The antenna bandwidth covers n257 and n260 bands, which can be used for communication between 5G mobile devices and LEO satellites.
- dual-band dual circularly polarized,
- millimeter wave,
- LEO satellite communication,
- 5G mobile equipment,
- broadband

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References(18)

References

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