GB/T 21021.3-2021Intermodulation level measurement for passive RF and microwave devices - Part 3: Measurement of passive intermodulation in coaxial connectors (English PDF)
无源射频和微波元器件的互调电平测量 第3部分：同轴连接器的无源互调测量
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
November 26, 2021
Implementation date
June 1, 2022
Scope
GB/T 21021.3-2021 is the English-translated version of 无源射频和微波元器件的互调电平测量 第3部分：同轴连接器的无源互调测量.
GB/T 21021.3-2021 — This part of GB/T 21021 describes the passive intermodulation (PIM) test method when coaxial connectors are subjected to an impact test.
This test is used To evaluate the robustness of the coaxial connector, prevent weak connections and particles inside the connector, and be independent of passive intermodulation (PIM) as much as possible Impact.
For other connectors (such as panel mount connectors), the cable can be replaced by a suitable transmission line (such as air line, ribbon line). for To evaluate the impact of mechanical stress on the connector, a series of impact forces need to be applied to the connector when measuring PIM.
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Document preview — GB/T 21021.3-2021
National Standard of the People's Republic of China
- Classification
- L 26
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Abbreviations
- 4 Test method
- 4.1 Test sample
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 3 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 62037-3.2012 "Intermodulation Level Measurement of Passive Radio Frequency and Microwave Components Part 3"
Sub. Passive Intermodulation Measurement of Coaxial Connectors.
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 21021.4-2021 Intermodulation level measurement of passive radio frequency and microwave components Part 4.Passive coaxial cable
Intermodulation measurement (IEC 62037-4.2012, IDT).
1 Scope
This part of GB/T 21021 describes the passive intermodulation (PIM) test method when coaxial connectors are subjected to an impact test. This test is used
To evaluate the robustness of the coaxial connector, prevent weak connections and particles inside the connector, and be independent of passive intermodulation (PIM) as much as possible
Impact.
For other connectors (such as panel mount connectors), the cable can be replaced by a suitable transmission line (such as air line, ribbon line). for
To evaluate the impact of mechanical stress on the connector, a series of impact forces need to be applied to the connector when measuring PIM.
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 document. 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 62037-4 Intermodulation level measurement of passive radio frequency and microwave components Part 4.Passive intermodulation measurement of coaxial cable
(PassiveRFandmicrowavedevices,intermodulationlevelmeasurement-Part 4.Measurementof
passiveintermodulationincoaxialcables)
3 Abbreviations
The following abbreviations apply to this document.
DUT. device under test (deviceundertest)
IM. Intermodulation (intermodulation)
PIM. Passive Intermodulation (passive intermodulation)
4 Test method
4.1 Test sample
A test sample of one of the following two devices can be used.
Note. The correct mounting method and technology are very important for the mating of the cable and the connector.
a) Device 1---Multi-port DUT
In order to minimize the influence of the transmission line, it is advisable to test short-length components. The same connector should be assembled at each end. Should be constructed
A component that is as short as possible and practicable.
b) Device 2---Single port DUT
A single connector can be installed on a certain length of lossy or low-consumption transmission line, and the design ensures that the transmission line is at the lowest receiving frequency band
The one-way attenuation in frequency is at least 10dB.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.
Referenced standards
Normative references
IEC 62037
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Related Standards
GB/T 21021.1-2021 — Intermodulation level measurement for passive RF and microwave devices - Part 1: General requirements and measuring methods
GB/T 21021.2-2021 — Intermodulation level measurement for passive RF and microwave devices - Part 2: Measurement of passive intermodulation in coaxial cable assemblies
GB/T 21021.4-2021 — Intermodulation level measurement for passive RF and microwave devices - Part 4: Measurement of passive intermodulation in coaxial cables
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