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GB/T 40602.2-2021 English PDF

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US$499.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 40602.2-2021: Antennas and reception systems for radio interference - Part 2: Basic measurement - Method for near field measuring high gain antenna pattern in microwave anechoic chamber
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40602.2-2021	499	Add to Cart	5 days	Antennas and reception systems for radio interference - Part 2: Basic measurement - Method for near field measuring high gain antenna pattern in microwave anechoic chamber	Valid

Similar standards

GB/T 40309 GB/T 38659.1 GB/T 38889 GB/T 18655 GB/T 40602.3 GB/Z 40602.4

Basic data

Standard ID: GB/T 40602.2-2021 (GB/T40602.2-2021)
Description (Translated English): Antennas and reception systems for radio interference - Part 2: Basic measurement - Method for near field measuring high gain antenna pattern in microwave anechoic chamber
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L06
Word Count Estimation: 27,258
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40602.2-2021: Antennas and reception systems for radio interference - Part 2: Basic measurement - Method for near field measuring high gain antenna pattern in microwave anechoic chamber

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Antennas and reception systems for radio interference - Part 2.Basic measurement - Method for near field measuring high gain antenna pattern in microwave anechoic chamber ICS 33.120.40 CCSL06 National Standards of People's Republic of China Radio interference from antenna and receiving system Part 2.Basic measurement of high-gain antenna pattern Indoor flat near-field measurement method Released on 2021-10-11 2022-05-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Measurement conditions 2 4.1 Overview 2 4.2 Tested antenna status 3 4.3 Coordinate system 3 5 Measuring environment 4 5.1 Measurement environment requirements 4 5.2 Power requirements 4 5.3 Measurement site requirements 5 6 Measuring system 5 6.1 System block diagram 5 6.2 Mechanical subsystem 5 6.3 Radio Frequency Subsystem 7 6.4 Control subsystem 9 6.5 Measurement software 9 7 Measurement method 10 7.1 Basic theory 10 7.2 Measurement implementation 10 7.3 Measurement parameters 11 7.4 Measurement steps 12 7.5 Data analysis 13 7.6 Representation method of radiation pattern 13 7.7 Analysis of measurement uncertainty 13 8 Measurement report 14 8.1 Measurement report requirements 14 8.2 Output of measurement results 15 9 Security 15 9.1 Safety protection requirements 15 9.2 Safety protection measures 15 Appendix A (informative) Near-to-far field conversion method 17 Appendix B (informative) Radiation pattern representation 19 Appendix C (Informative) Explanation of Measurement Uncertainty Evaluation 21 Reference 23

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is part 2 of GB/T 40602 "Radio Interference from Antennas and Receiving Systems". GB/T 40602 has been released to Lower part. ---Part 1.Basic indoor far-field measurement method of antenna pattern; ---Part 2.Basic measurement method for indoor planar near-field measurement of high-gain antenna pattern. Certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed and managed by the National Radio Interference Standardization Technical Committee (SAC/TC79). Drafting organizations of this document. Shanghai Electrical Apparatus Research Institute, 39th Research Institute of China Electronics Technology Group Corporation, Zhuhai City, Guangdong Province Metrology Supervision and Testing Institute, Shanghai Tianwei Certification Technology Co., Ltd., Shanghai Wuwei Radio Testing Laboratory Co., Ltd., Shanghai Robotics Industry Technology Research Institute Co., Ltd., Shanghai Holevo Electronic System Technology Co., Ltd., Xiamen University, Shanghai Electrical Group) Co., Ltd., Ruifeng Radio Frequency Technology (Shanghai) Co., Ltd. The main drafters of this document. Zheng Junqi, Shi Guli, Yu Chao, Liang Guansheng, Yu Jinlong, Xiong Meng, Yuan Shuchuan, Mao Xiaolian, Zhang Miao, Wang Cunxiang, Ye Qiongyu, Song Jiangwei, Zhang Fengxian, Xie Yanping, Zhu Yining, Luo Yuxiang, He Zhihui.

Introduction

The radio interference of the antenna and the receiving system is based on the "antenna" (invisible antenna-wireless receiving system) as the entry point to establish the antenna and the radio The electromagnetic compatibility standard of the receiving system covers antennas, measurement sites and wireless receiving systems. GB/T 40602 "Radio Interference from Antennas and Receiving Systems" is intended to be composed of the following parts. ---Part 1.Basic indoor far-field measurement method of antenna pattern. The purpose is to specify the antenna radiation pattern (below Radiation pattern for short) is a method of measuring the elevated far field in a microwave anechoic chamber. ---Part 2.Basic measurement method for indoor planar near-field measurement of high-gain antenna pattern. The purpose is to specify high-gain antennas Planar near-field scanning method is a method for measuring the antenna pattern in a microwave anechoic chamber. ---Part 3.Field measurement method to confirm the performance of the compact field. The purpose is to specify the tight field shielding effectiveness, static field radiation characteristics Measurement methods for performance, phase characteristics, and cross-polarization performance. ---Part 4.The electromagnetic compatibility test method of the integrated radio module electronic equipment of the wireless receiving system. The purpose is to provide for EMC testing requirements and testing methods for electronic equipment with integrated wireless modules such as industrial, scientific, medical, automotive, and household appliances. The above four parts and the previously published GB/T 38889-2020 on vehicle antennas and systems together form the antenna and receiving system. A unified radio interference standard system. Radio interference from antenna and receiving system Part 2.Basic measurement of high-gain antenna pattern Indoor flat near-field measurement method

1 Scope

This document describes how to measure the antenna pattern (hereinafter referred to as the pattern) in a microwave anechoic chamber using the planar near-field scanning method of a high-gain antenna. method. This document is applicable to the measurement of antenna pattern with gain ≥ 15dBi and maximum measurement angle ≤ 60°.

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB 8702-2014 Electromagnetic environment control limits GB/T 14733.10-2008 Telecom Terminology Antenna

3 Terms and definitions

The following terms and definitions defined in GB 8702-2014 and GB/T 14733.10-2008 apply to this document. 3.1 Nearfieldmeasurement Measurements made in the near-field area of the antenna under test. 3.2 Coordinatesystem A system including antenna coordinate system, turntable coordinate system, and site coordinate system. Note 1.Generally, the antenna coordinate system is selected as the measurement coordinate system. If another coordinate system is selected, it needs to be transformed from the antenna coordinate system to another measurement or working coordinate system As long as their relative orientation and location are known. Note 2.With this coordinate system, the measured antenna parameters have nothing to do with the installation or orientation of the antenna. 3.3 Linearly-polarized antenna In the direction of maximum gain, it can be used as an antenna that radiates linearly polarized electromagnetic waves when transmitting, or when receiving, the antenna terminal can obtain the maximum available power. The direction of the incoming rays polarizes the electromagnetic wave of the antenna. 3.4 Circularly-polarized antenna In the direction of maximum gain, it can be used as an antenna that radiates circularly polarized electromagnetic waves when transmitting, or when receiving, the antenna terminal can obtain the maximum available power. The direction of the rate of incidence of circularly polarized electromagnetic waves of the antenna. 3.5 Radiation pattern Characterize the distribution of antenna radiation in space. ......

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Question 1: How long will the true-PDF of GB/T 40602.2-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 40602.2-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 40602.2-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 40602.2-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.