BS EN 61000-4-39:2017
$189.07
Electromagnetic compatibilty (EMC) – Testing and measurement techniques. Radiated fields in close proximity. Immunity test
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 46 |
This part of IEC 61000 specifies immunity requirements for electrical and electronic equipment when it is exposed to radiated electromagnetic energy from RF transmitters used in close proximity. It establishes test levels and the required test procedures. The applicable frequency range is 9 kHz to 6 GHz. Fixed-installation equipment being exposed to portable transmitting devices, mobile equipment exposed to fixed transmitting devices and mobile equipment exposed to other mobile transmitting devices are considered.
The object of this document is to establish a common reference for evaluating the immunity requirements of electrical and electronic equipment that is exposed to radiated, RF electromagnetic fields from sources at close distances. It is understood that this part of IEC 61000 does not replace general immunity requirements of electrical and electronic equipment to radiated electromagnetic energy as given in IEC 61000‑4‑3 and other parts of IEC 61000 and that it is only applicable if an equipment or system is exposed to disturbance sources in close proximity.
In the context of this document, “close proximity” generally refers to a separation distance between the source and victim equipment of less than or equal to 200 mm for frequencies greater than 26 MHz and 500 mm for frequencies lower than 26 MHz.
The test methods documented in this part of IEC 61000 describe consistent methods to assess the immunity of an equipment or system against a defined phenomenon in the respective frequency range. Product committees would consider the applicability of the test and then if necessary select the applicable test method depending on the EUT, frequency range, disturbance source, etc.
As described in IEC Guide 107 , this is a basic EMC publication for use by product committees of the IEC. As also stated in Guide 107, the IEC product committees are responsible for determining whether this immunity test standard should be applied or not, and if applied, they are responsible for determining the appropriate test levels and performance criteria. TC 77 and its sub-committees are prepared to co-operate with product committees in the evaluation of the value of particular immunity tests for their products.
This document deals with immunity tests related to RF magnetic and electromagnetic fields from any source used in close proximity to other electrical or electronic equipment or systems.
This document is an independent test method. Other test methods should not be used as substitutes for claiming compliance with this document.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | English CONTENTS |
| 10 | FOREWORD |
| 12 | INTRODUCTION |
| 15 | 1 Scope 2 Normative references |
| 16 | 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions |
| 17 | 3.2 Abbreviated terms |
| 18 | 4 General Figures Figure 1 – Overview showing the test methods that could be used for evaluating equipment immunity to disturbances from RF transmitters |
| 19 | 5 Test levels 5.1 General 5.2 Test frequencies Figure 2 – Close-proximity test methods addressed in this document |
| 20 | 5.3 Test levels in the frequency range of 9 kHz to 150 kHz Figure 3 – Definition of the 80 % amplitude-modulated (AM) test level and the waveshapes occurring at the output of the signal generator Tables Table 1 – Test levels for inhomogeneous magnetic fields, 9 kHz to 150 kHz |
| 21 | 5.4 Test levels in the frequency range of 150 kHz to 26 MHz 5.5 Test levels in the frequency range of 26 MHz to 380 MHz 5.6 Test levels in the frequency range of 380 MHz to 6 GHz Table 2 – Test levels for inhomogeneous magnetic fields, 150 kHz to 26 MHz |
| 22 | Figure 4 – Example of the pulse-modulated (50 % duty cycle, 217 Hz) test level and the waveshapes occurring at the output of the signal generator Table 3 – Test levels for RF fields from transmitters usedin close proximity, 380 MHz to 6 GHz |
| 23 | 6 Test equipment 6.1 Magnetic field immunity 6.1.1 General 6.1.2 Magnetic field immunity 9 kHz to 150 kHz |
| 24 | 6.1.3 Magnetic field immunity 150 kHz to 26 MHz 6.2 Radiated RF field immunity 6.2.1 Field generating devices, 26 MHz to 380 MHz 6.2.2 Field generating devices, 380 MHz to 6 GHz |
| 25 | 7 Test setup 7.1 Magnetic field immunity 7.1.1 Test facility 7.1.2 Arrangement of equipment under test |
| 26 | Figure 5 – Example of equipment testing on floor-standing EUT using radiatingloop antenna – Frequency range 9 kHz to 150 kHz(100 mm x 100 mm window size) Figure 6 – Example of equipment testing on floor-standing EUT usingradiating loop antenna – Frequency range150 kHz to 26 MHz (80 mm x 80 mm window size) |
| 27 | 7.1.3 Test method using radiating loop 7.2 Radiated RF field immunity 7.2.1 Test facility 7.2.2 Arrangement of equipment under test Table 4 – Definition of window size and test distance |
| 28 | 8 Test procedure 8.1 General 8.2 Climatic conditions Figure 7 – Principle of equipment testing on floor-standing EUTusing TEM horn antenna |
| 29 | 8.3 Electromagnetic conditions 8.4 Arrangement and operating modes of the EUT 8.5 Magnetic field immunity 8.5.1 Level setting procedure 9 kHz to 150 kHz 8.5.2 Level setting procedure 150 kHz to 26 MHz |
| 30 | 8.5.3 Execution of the test Figure 8 – Radiating loop level setting |
| 31 | Figure 9 – Principle of equipment testing with radiating loop Table 5 – Maximum frequency steps size, magnetic field immunity test |
| 32 | 8.6 Radiated RF field immunity 8.6.1 Level setting procedure 8.6.2 Execution of test |
| 33 | Figure 10 – Example of the test pattern using a 300 mm x 300 mmwindow size for the uniform area |
| 34 | Figure 11 – Arrangement of level setting |
| 35 | 9 Evaluation of test results 10 Test report Figure 12 – Example of TEM horn antenna orientations |
| 37 | Annex A (normative)TEM horn antenna A.1 General A.2 Frequency range A.3 VSWR A.4 Field distribution |
| 38 | Figure A.1 – Example of field uniformity verification setup |
| 39 | A.5 General design for TEM horn antenna Figure A.2 – Field uniformity measurement setup Figure A.3 – Example of field uniformity at 1,5 GHz (simulated) forTEM horn antenna having an aperture dimension of 205 mm x 205 mm |
| 40 | Figure A.4 – Example of general design principle of TEM horn antenna |
| 41 | Annex B (informative)Test frequencies, levels and modulations B.1 General B.2 Magnetic emitters in the range from 9 kHz to 26 MHz B.3 Radio services in the range from 26 MHz to 6 GHz |
| 42 | Table B.1 – Guidance on test levels of certain RF wireless communications equipment |
| 44 | Annex C (informative)In situ testing C.1 General C.2 Test procedure C.3 Test report |
| 45 | Bibliography |
