Frontiers of Information Technology & Electronic Engineering
>> 2023,
Volume 24,
Issue 10
doi:
10.1631/FITEE.2200244
Wideband and high-gain BeiDou antenna with a sequential feed network for satellite tracking
Affiliation(s): College of Electrical and Information Engineering, Hunan University,Changsha 410082,China; School of Physics and Electronics, Hunan Normal University,Changsha 410082,China; less
Received: 2022-06-05
Accepted: 2023-10-27
Available online: 2023-10-27
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Abstract
BeiDou-3 navigation satellite system was officially opened in 2020. While bringing high-performance services to people around the world, the navigation system requires well-designed s. In this paper, we propose a wideband circularly polarized high-performance . The antenna realizes through a , and the phase imbalance of the feed network from 1.05 to 1.80 GHz is less than 7°. The manufactured antenna demonstrates a return loss of more than 13 dB and an axial ratio3 dB over the entire global navigation satellite system (GNSS) frequency band. The right-handed circular polarization (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. Dimension of the proposed antenna is 120 mm×120 mm×20 mm, i.e., 0.54×0.54×0.09, where is the wavelength of the center frequency. The proposed antenna connected to a GNSS receiver has 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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