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BS EN 61000-4-39:2017 Electromagnetic compatibilty (EMC) - Testing and measurement techniques. Radiated fields in close proximity. Immunity test, 2017
- National foreword
- English [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- 3.2 Abbreviated terms
- 4 General
- Figures [Go to Page]
- Figure 1 – Overview showing the test methods that could be used for evaluating equipment immunity to disturbances from RF transmitters
- 5 Test levels [Go to Page]
- 5.1 General
- 5.2 Test frequencies
- Figure 2 – Close-proximity test methods addressed in this document
- 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 [Go to Page]
- Table 1 – Test levels for inhomogeneous magnetic fields, 9 kHz to 150 kHz
- 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
- 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
- 6 Test equipment [Go to Page]
- 6.1 Magnetic field immunity [Go to Page]
- 6.1.1 General
- 6.1.2 Magnetic field immunity 9 kHz to 150 kHz
- 6.1.3 Magnetic field immunity 150 kHz to 26 MHz
- 6.2 Radiated RF field immunity [Go to Page]
- 6.2.1 Field generating devices, 26 MHz to 380 MHz
- 6.2.2 Field generating devices, 380 MHz to 6 GHz
- 7 Test setup [Go to Page]
- 7.1 Magnetic field immunity [Go to Page]
- 7.1.1 Test facility
- 7.1.2 Arrangement of equipment under test
- 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) [Go to Page]
- 7.1.3 Test method using radiating loop
- 7.2 Radiated RF field immunity [Go to Page]
- 7.2.1 Test facility
- 7.2.2 Arrangement of equipment under test
- Table 4 – Definition of window size and test distance
- 8 Test procedure [Go to Page]
- 8.1 General
- 8.2 Climatic conditions
- Figure 7 – Principle of equipment testing on floor-standing EUTusing TEM horn antenna
- 8.3 Electromagnetic conditions
- 8.4 Arrangement and operating modes of the EUT
- 8.5 Magnetic field immunity [Go to Page]
- 8.5.1 Level setting procedure 9 kHz to 150 kHz
- 8.5.2 Level setting procedure 150 kHz to 26 MHz
- 8.5.3 Execution of the test
- Figure 8 – Radiating loop level setting
- Figure 9 – Principle of equipment testing with radiating loop
- Table 5 – Maximum frequency steps size, magnetic field immunity test
- 8.6 Radiated RF field immunity [Go to Page]
- 8.6.1 Level setting procedure
- 8.6.2 Execution of test
- Figure 10 – Example of the test pattern using a 300 mm x 300 mmwindow size for the uniform area
- Figure 11 – Arrangement of level setting
- 9 Evaluation of test results
- 10 Test report [Go to Page]
- Figure 12 – Example of TEM horn antenna orientations
- Annex A (normative)TEM horn antenna [Go to Page]
- A.1 General
- A.2 Frequency range
- A.3 VSWR
- A.4 Field distribution
- Figure A.1 – Example of field uniformity verification setup
- 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
- Figure A.4 – Example of general design principle of TEM horn antenna
- Annex B (informative)Test frequencies, levels and modulations [Go to Page]
- 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
- Table B.1 – Guidance on test levels of certain RF wireless communications equipment
- Annex C (informative)In situ testing [Go to Page]
- C.1 General
- C.2 Test procedure
- C.3 Test report
- Bibliography [Go to Page]
