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20/30414828 DC BS EN 62037-2. Passive RF and microwave devices, intermodulation level measurement - Part 2. Measurement of passive intermodulation in coaxial cable assemblies, 2020
- 46_764e_CDV.pdf [Go to Page]
- FOREWORD [Go to Page]
- International Standard IEC 62037-2 has been prepared by technical committee 46: Cables, wires, waveguides, r.f. connectors, r.f. and microwave passive components and accessories.
- The text of this standard is based on the following documents:
- Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table.
- This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
- The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publicatio...
- • reconfirmed,
- • withdrawn,
- • replaced by a revised edition, or
- • amended.
- A bilingual version of this publication may be issued at a later date.
- This part of IEC 62037 defines a procedure to measure levels of passive intermodulation generated by a coaxial cable assembly.
- This test method is applicable to jumper cables, i.e. cable assemblies intended to provide interface flexibility between rigid devices. It is also used to evaluate cable assemblies that are subjected to motion in operation.
- The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced doc...
- DUT Device under test
- PIM Passive intermodulation
- Key IEC 2121/12
- Key
- The distance d (Figure 1) is related to the flexibility of a cable represented by its specified repeated bending radius. If not otherwise specified, the parameters of distance and radius shall be calculated as follows:
- d = 4 x specified repeated bending radius of cable
- r (rotational radius) = ø (diameter of cable) + 10 mm
- Distance (d) and rotational radius (r) may be changed as long as the angle exiting the connector is maintained.
- The movement of the cable shall be carried out with a minimum of 3 cycles in the clockwise and then 3 cycles in the counterclockwise direction at a rate of (5 ± 2) s per revolution.
- Torsion shall not be applied to the cable.
- The procedure is as follows:
- a) calibrate the set-up;
- b) connect the DUT to the set-up;
- c) read the PIM before applying mechanical stress;
- d) apply mechanical stress to the DUT;
- e) read the maximum PIM level while applying mechanical stress to the DUT;
- f) stop the mechanical stress;
- g) read the PIM level after applying mechanical stress.
- The report should include the following:
- a) radius;
- b) distance from the PIM tester;
- c) PIM levels prior to rotation;
- d) PIM levels during rotation;
- e) PIM levels after rotation. [Go to Page]
