GB/T 46368-2025Requirements and test methods for the performance of geodetic antennas for the BeiDou navigation satellite system (English PDF)

北斗卫星导航系统测量型天线性能要求及测试方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

February 1, 2026

Scope

GB/T 46368-2025 is the English-translated version of 北斗卫星导航系统测量型天线性能要求及测试方法.

GB/T 46368-2025 is the Chinese national standard covering the survey-grade antenna - the phase centre and its variation with elevation and azimuth, which is the error that limits millimetre positioning, the multipath rejection, the gain pattern across the BeiDou bands, and the anechoic chamber tests. At 22,500 words, first edition, under the Ministry of Industry and Information Technology. In force from 1 February 2026. Issued on 31 October 2025, it has been in force since 1 February 2026.

Document preview — GB/T 46368-2025

National Standard of the People's Republic of China

ICS: 33.200
Classification: M 50

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1.Scope1
2 Normative References1
3.Terms and Definitions, Abbreviations1
3.1 Terms and Definitions1
3.2 Abbreviations3
4.1 Classification4
4.2 Composition4
5 Requirements4
5.1 Antenna Performance4
5.2 Low-noise amplifier performance5
5.3 Environmental adaptability6
5.4 Electromagnetic Compatibility6
5.5 Physical Properties6
6.1 Test Conditions7
6.2 Antenna Performance9
6.3 Low-noise amplifier performance19
6.4 Environmental adaptability25
6.5 Electromagnetic compatibility27
31 Appendix C (Informative) Outdoor Relative Calibration Method 33 C.1 Test Instructions 33 C.2 Test Field 34 C.3 Test Equipment 34 C.4 Test Flowchart 34 C.5 Test Step 35 C.6 Data Processing36

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the Ministry of Industry and Information Technology of the People's Republic of China. This document was drafted by: Shenzhen Huaxin Antenna Technology Co., Ltd., Jiaxing Jiali Electronics Co., Ltd., and China Electronics Technology Group Corporation. The 36th Research Institute and CoreStar Technology (Beijing) Co., Ltd. The main drafters of this document are. Wang Xiaohui, Zhang Jie, Zhang Chuang, Zhao Danhua, Ye Yunshang, Wang Zhangchun, Yao Wenjie, Xu Guangcheng, Cao Xueyong, and Zhao Jie. Zhou Shengyang. Beidou Satellite Navigation System Measurement Antenna Performance Requirements and Test Methods

1 Scope

This document specifies the performance requirements for measurement antennas of the BeiDou Navigation Satellite System (BDS) and describes the corresponding test methods. This document applies to the design, production, use, and maintenance of BeiDou Navigation Satellite System (BDS) measurement antennas (hereinafter referred to as "measurement antennas"). Testing.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

GB/T 2423.1 Environmental testing of electronic and electrical products - Part

3.1 Terms and Definitions The terms and definitions defined in

GB/T 9390 and the following terms and definitions apply to this document.

3.1.1 With the antenna phase center as the origin of the coordinate system and the antenna axis as the Z-axis, in a plane passing through the origin and perpendicular to the Z-axis, select a certain direction. The direction is taken as the antenna reference direction, with this direction as the X-axis, and the axis passing through the origin and perpendicular to both the Z-axis and X-axis as the Y-axis. The X, Y, and Z axes form a Right-handed coordinate system.

Note. Antenna coordinates often use spherical coordinates. The angle between the projection of the line connecting any point P on the sphere and the origin O onto the XOY plane and the X-axis is phi. The angle between OP and the Z-axis is the antenna pointing angle theta, and the angle between OP and the XOY plane is the antenna elevation angle. theta and the antenna elevation angle are complementary angles, as shown in Figure 1.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 40 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 2423.1 · GB/T 2423.2 · GB/T 2423.3 · GB/T 2423.5 · GB/T 2423.7 · GB/T 2423.10 · GB/T 17626.2-2018 · GB/T 17626.5-2019 · GB 50826-2012

Editions of GB/T 46368

Edition	Title	Revision	Status
GB/T 46368-2025	Requirements and test methods for performance of geodetic antenna for BeiDou navigation satellite system	current edition	Current

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