GB/T 21021.4-2021 English PDF

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GB/T 21021.4-2021: Intermodulation level measurement for passive RF and microwave devices - Part 4: Measurement of passive intermodulation in coaxial cables
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21021.4-2021	164	Add to Cart	3 days	Intermodulation level measurement for passive RF and microwave devices - Part 4: Measurement of passive intermodulation in coaxial cables	Valid

Similar standards

GB/T 17737.104   GB/T 17737.103   GB/T 17738.2   GB/T 17737.10   GB/T 21021.3   GB/T 21021.1   

Basic data

Standard ID: GB/T 21021.4-2021 (GB/T21021.4-2021)
Description (Translated English): Intermodulation level measurement for passive RF and microwave devices - Part 4: Measurement of passive intermodulation in coaxial cables
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L26
Word Count Estimation: 9,932
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 21021.4-2021: Intermodulation level measurement for passive RF and microwave devices - Part 4: Measurement of passive intermodulation in coaxial cables

---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.
Intermodulation level measurement for passive RF and microwave devices - Part 4.Measurement of passive intermodulation in coaxial cables ICS 33.120.10 L26 National Standards of People's Republic of China Intermodulation level measurement of passive radio frequency and microwave components Part 4.Passive intermodulation measurement of coaxial cable (IEC 62037-4.2012, PassiveRFandmicrowavedevices, intermodulation Released on 2021-11-26 2022-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

GB/T 21021 "Intermodulation level measurement of passive radio frequency and microwave components" has released the following parts. ---Part 1.General requirements and measurement methods; ---Part 2.Passive intermodulation measurement of coaxial cable assemblies; ---Part 3.Passive intermodulation measurement of coaxial connectors; ---Part 4.Passive intermodulation measurement of coaxial cable. This part is Part 4 of GB/T 21021. This section was drafted in accordance with the rules given in GB/T 1.1-2009. The translation method used in this part is equivalent to IEC 62037-4.2012 "Intermodulation Level Measurement of Passive Radio Frequency and Microwave Components Part 4" Sub. Passive Intermodulation Measurement of Coaxial Cable. The Chinese documents that have a consistent correspondence with the normatively cited international documents in this section are as follows. ---GB/T 21021.1-2021 Intermodulation level measurement of passive radio frequency and microwave components Part 1.General requirements and measurements Method (IEC 62037-1.2012, IDT); ---GB/T 21021.3-2021 Intermodulation level measurement of passive radio frequency and microwave components Part 3.Coaxial connector Source intermodulation measurement (IEC 62037-3.2012, IDT). This section has made the following editorial changes. ---Added the description of d1, d2, d3, and R in Figure 1; ---The description of X, Y, Z, D in Figure 2 has been added. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This part was proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part is under the jurisdiction of the National Standardization Technical Committee for High-frequency Cables and Connectors for Electronic Equipment (SAC/TC190). Drafting unit of this section. The 23rd Research Institute of China Electronics Technology Group Corporation. The main drafters of this section. Yin Haicheng, Fang Xu, Tian Xin. Intermodulation level measurement of passive radio frequency and microwave components Part 4.Passive intermodulation measurement of coaxial cable

1 Scope

This part of GB/T 21021 describes the recommended test equipment and test procedures for measuring the passive intermodulation level of coaxial cables, including two A dynamic test method and a static test method. All cables are subject to static test and dynamic test of clamped cable loop. Flexible or semi-flexible cables also need to withstand the dynamic test of bending tools.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. IEC 62037-1 Intermodulation level measurement of passive radio frequency and microwave components Part 1.General requirements and measurement methods (Passive RFandmicrowavedevices,intermodulationlevelmeasurement-Part 1.Generalrequirementsand measuringmethods) IEC 62037-3 Intermodulation level measurement of passive radio frequency and microwave components Part 3.Passive intermodulation measurement of coaxial connectors (PassiveRFandmicrowavedevices,intermodulationlevelmeasurement-Part 3.Measurementof passiveintermodulationincoaxialconnectors)

3 Abbreviations

The following abbreviations apply to this document. DUT. device under test (deviceundertest) IM. Intermodulation (intermodulation)

4 Test device

For dynamic tests, suitable test equipment is required. For the clamped cable loop test (see 5.2), it shall be clamped as shown in Figure 1 Move the cable sideways at both ends of the cable movement area. The design of the clamp should not only firmly clamp the cable at the stress point, but not The cable is damaged due to squeezing or kinking. When using a bending tool to perform a movement test on the cable (see 5.3), the cable is bent when passing through the device shown in Figure 2.Total of the device The body design is shown in Figure 2.See Table 1 and Table 2 for the detailed dimensions of cables of different specifications (and the specified different bending radii). ......

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