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Frontiers of Information Technology & Electronic Engineering 

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Wideband and high-gain Beidou antenna with sequential feed network for satellite tracking


Author(s):  Zhuolin DENG, Zhongyu TIAN, Chenhe DUAN, Pei XIAO, Zhu LIU, Gaosheng LI

Affiliation(s):  College of Electrical and Information Engineering, Hunan University, Changsha 410082, China; more

Corresponding email(s):  Gaosheng7070@vip.163.com

Key Words:  Beidou antenna; Wideband circularly polarized radiation; Four-port sequential feed network; GNSS receiver; Satellite tracking


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Zhuolin DENG, Zhongyu TIAN, Chenhe DUAN, Pei XIAO, Zhu LIU, Gaosheng LI. Wideband and high-gain Beidou antenna with sequential feed network for satellite tracking[J]. Frontiers of Information Technology & Electronic Engineering , 1998, -1(1): .

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journal="Frontiers of Information Technology & Electronic Engineering",
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year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.2200244"
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A1 - Zhu LIU
A1 - Gaosheng LI
J0 - Frontiers of Information Technology & Electronic Engineering
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Abstract: 
The Beidou-3 satellite navigation system was officially opened in 2020. While bringing high-performance services to people around the world, the navigation system requires well-designed Beidou antennas. In this paper, we propose a wideband circularly polarized high performance Beidou antenna. The antenna realizes wideband circularly polarized radiation through a four-port sequential feed network, and the phase imbalance of the feed network from 1.05 to 1.8 GHz is less than ±7°. The manufactured antenna demonstrated a return loss of more than 13 dB, and an axial ratio of 3 dB over the entire global navigation satellite system (GNSS) frequency band. The RHCP gain of the proposed antenna is greater than 4 dB in the GNSS low frequency band, and can reach more than 7.1 dB in the high frequency band. Its dimensions are 120 mm× 120 mm× 20 mm, (0.54 × 0.54 × 0.09) , where is the wavelength of the center frequency. The developed antenna connected to a GNSS receiver tracked 12 Beidou satellites with ratios of GNSS signals greater than 30 dB. Such a high-performance antenna provides a basis for high-quality positioning services.

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