CISPR 16-1-4 Edition 3 1-2012 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4 Radio disturbance and immunity measuring apparatus - Anten.pdf

1、 CISPR 16-1-4 Edition 3.1 2012-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Specification for radio disturbance and immunity measuring apparatus and methods Part 1-4: Radio disturbance and immunity measuring apparatus Antennas and test sites for radiated disturbance measurements Spcifications des

2、mthodes et des appareils de mesure des perturbations radiolectriques et de limmunit aux perturbations radiolectriques Partie 1-4: Appareils de mesure des perturbations radiolectriques et de limmunit aux perturbations radiolectriques Antennes et emplacements dessai pour les mesures des perturbations

3、rayonnes CISPR 16-1-4:2010+A1:2012INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE COMIT INTERNATIONAL SPCIAL DES PERTURBATIONS RADIOLECTRIQUES BASIC EMC PUBLICATION PUBLICATION FONDAMENTALE EN CEM colourinsideTHIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All r

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17、rvice Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. CISPR 16-1-4 Edition 3.1 2012-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Specification for radio disturbance and immunity measuring appar

18、atus and methods Part 1-4: Radio disturbance and immunity measuring apparatus Antennas and test sites for radiated disturbance measurements Spcifications des mthodes et des appareils de mesure des perturbations radiolectriques et de limmunit aux perturbations radiolectriques Partie 1-4: Appareils de

19、 mesure des perturbations radiolectriques et de limmunit aux perturbations radiolectriques Antennes et emplacements dessai pour les mesures des perturbations rayonnes INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CU ICS 33.100.10; 33.100.20 PRICE CODE CODE PRIX

20、 ISBN 978-2-8322-0213-5 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cett

21、e publication via un distributeur agr. INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE COMIT INTERNATIONAL SPCIAL DES PERTURBATIONS RADIOLECTRIQUES BASIC EMC PUBLICATION PUBLICATION FONDAMENTALE EN CEM colourinside 2 CISPR 16-1-4 IEC:2010+A1:2012 CONTENTS FOREWORD . 7 INTRODUCTION (to Amendmen

22、t 1) 9 1 Scope . 10 2 Normative references 10 3 Terms, definitions and abbreviations . 11 3.1 Terms and definitions 11 3.2 Abbreviations . 14 4 Antennas for measurement of radiated radio disturbance 15 4.1 General . 15 4.2 Physical parameter for radiated emission measurements . 15 4.3 Frequency rang

23、e 9 kHz to 150 kHz 16 4.3.1 General . 16 4.3.2 Magnetic antenna 16 4.3.3 Shielding of loop antenna . 16 4.4 Frequency range 150 kHz to 30 MHz 16 4.4.1 Electric antenna . 16 4.4.2 Magnetic antenna 17 4.4.3 Balance/cross-polar performance of antennas 17 4.5 Frequency range 30 MHz to 1 000 MHz 17 4.5.1

24、 General . 17 4.5.2 Low-uncertainty antenna for use if there is an alleged non-compliance to the E-field limit . 17 4.5.3 Antenna characteristics 17 4.5.4 Balance of antenna 20 4.5.5 Cross-polar response of antenna . 21 4.6 Frequency range 1 GHz to 18 GHz . 21 4.7 Special antenna arrangements Loop a

25、ntenna system 22 5 Test sites for measurement of radio disturbance field strength for the frequency range of 30 MHz to 1 000 MHz 22 5.1 General . 22 5.2 OATS 23 5.2.1 General . 23 5.2.2 Weather protection enclosure 23 5.2.3 Obstruction-free area . 23 5.2.4 Ambient radio frequency environment of a te

26、st site . 26 5.2.5 Ground plane . 26 5.2.6 OATS validation procedure 26 5.3 Test site Suitability for of other ground-plane test sites . 30 5.3.1 General Other ground-plane test sites 30 5.3.2 Normalized site attenuation for alternative test sites Test sites without ground plane (FAR) . 31 5.3.3 Sit

27、e attenuation 34 5.3.4 Conducting ground plane . 34 CISPR 16-1-4 IEC:2010+A1:2012 3 5.4 Test site suitability without ground plane validation . 36 5.4.1 Measurement considerations for free space test sites, as realized by fully-absorber-lined shielded enclosures General 36 5.4.2 Site performance Ove

28、rview of test site validations 37 5.4.3 Site validation criteria Principles and values of the NSA method for OATS and SAC . 46 5.4.4 Reference site method for OATS and SAC . 54 5.4.5 Validation of an OATS by the NSA method . 59 5.4.6 Validation of a weather-protection-enclosed OATS or a SAC 62 5.4.7

29、 Site validation for FARs . 65 5.5 Evaluation of set-up table and antenna tower . 54 5.5.1 General . 74 5.5.2 Evaluation procedure for set-up table influences 74 6 Reverberating chamber for total radiated power measurement 76 6.1 General . 76 6.2 Chamber . 76 6.2.1 Chamber size and shape 76 6.2.2 Do

30、or, openings in walls, and mounting brackets . 76 6.2.3 Stirrers 77 6.2.4 Test for the efficiency of the stirrers . 77 6.2.5 Coupling attenuation 78 7 TEM cells for immunity to radiated disturbance measurement 79 8 Test sites for measurement of radio disturbance field strength for the frequency rang

31、e 1 GHz to 18 GHz . 79 8.1 General . 79 8.2 Reference test site 79 8.3 Validation of the test site 79 8.3.1 General . 79 8.3.2 Acceptance criterion for site validation . 80 8.3.3 Site validation procedures Evaluation of SVSWR. 81 8.4 Alternative test sites 93 9 Common mode absorption devices 93 9.1

32、General . 93 9.2 CMAD S-parameter measurements 93 9.3 CMAD test jig 93 9.4 Measurement method using the TRL calibration . 95 9.5 Specification of ferrite clamp-type CMAD . 97 9.6 CMAD performance (degradation) check using spectrum analyzer and tracking generator . 97 Annex A (normative) Parameters o

33、f antennas . 100 Annex B (normative) Monopole (1 m rod) antenna performance equations and characterization of the associated antenna matching network . 107 Annex C (normative) Loop antenna system for magnetic field induced-current measurements in the frequency range of 9 kHz to 30 MHz . 112 Annex D

34、(normative) Construction details for open area test sites in the frequency range of 30 MHz to 1 000 MHz (see Clause 5) . 121 Annex E (normative) Validation procedure of the open area test site for the frequency range of 30 MHz to 1 000 MHz (see Clause 5) (Void) . 125 4 CISPR 16-1-4 IEC:2010+A1:2012

35、Annex F (informative) Basis for 4 dB site acceptability criterion (see Clause 5) . 133 Annex G (informative) Examples of uncertainty budgets for site validation of a COMTS using RSM with a calibrated antenna pair 135 Bibliography 138 Figure 1 Schematic of radiation from EUT reaching an LPDA antenna

36、directly and via ground reflections on a 3 m site, showing the half beamwidth, , at the reflected ray 18 Figure 2 Obstruction-free area of a test site with a turntable (see 5.2.3) 24 Figure 3 Obstruction-free area with stationary EUT (see 5.2.3) . 25 Figure 4 Configuration of equipment for measuring

37、 site attenuation in horizontal polarization (see 5.2.6 and Annex E) . 28 Figure 5 Configuration of equipment for measuring site attenuation in vertical polarization using tuned dipoles (see 5.2.6 and Annex E) . 29 Figure 6 Typical antenna positions for alternative test site Vertical polarization NS

38、A measurements 32 Figure 7 Typical antenna positions for alternative test site Horizontal polarization NSA measurements 33 Figure 8 Typical antenna positions for alternative test site Vertical polarization NSA measurements for a smaller EUT 33 Figure 9 Typical antenna positions for alternative test

39、site Horizontal polarization NSA measurements for a smaller EUT 34 Figure 10 Graph of theoretical free-space NSA as a function of the frequency for different measurement distances (see Equation (10) 39 Figure 11 Measurement positions for the site validation procedure 41 Figure 12 Example of one meas

40、urement position and antenna tilt for the site validation procedure . 42 Figure 13 Typical free-space reference site attenuation measurement set-up 45 Figure 14 Position of the antenna relative to the edge above a rectangle set-up table (top view) 76 Figure 15 Antenna position above the set-up table

41、 (side view) 76 Figure 16 Example of a typical paddle stirrer 77 Figure 17 Range of coupling attenuation as a function of frequency for a chamber using the stirrer shown in Figure 16 . 78 Figure 18 Transmit antenna E-plane radiation pattern example (this example is for informative purposes only) 82

42、Figure 19 Transmit antenna H-plane radiation pattern (this example is for informative purposes only) 83 Figure 20 SVSWRmeasurement positions in a horizontal plane (see 8.3.3.2.2 for description) 84 Figure 21 SVSWRpositions (height requirements) 86 Figure 22 Conditional test position requirements . 9

43、2 Figure 23 Definition of the reference planes inside the test jig . 94 Figure 24 The four configurations for the TRL calibration 96 Figure 25 Limits for the magnitude of S11, measured according to provisions of 9.1 to 9.3 . 97 Figure 26 Example of a 50 adaptor construction in the vertical flange of

44、 the jig 98 Figure 27 Example of a matching adaptor with balun or transformer 99 Figure 28 Example of a matching adaptor with resistive matching network 99 CISPR 16-1-4 IEC:2010+A1:2012 5 Figure 29 Configuration of equipment for measuring site attenuation in horizontal polarization . 50 Figure 30 Co

45、nfiguration of equipment for measuring site attenuation in vertical polarization using tuned dipoles . 51 Figure 31 Test point locations for 3 m test distance 56 Figure 32 Paired test point locations for all test distances . 58 Figure 33 Example of paired test point selection for a test distance of

46、10 m 58 Figure 34 Illustration of an investigation of influence of antenna mast on AAPR59 Figure 35 Typical antenna positions for a weather-protected OATS or a SAC Vertical polarization validation measurements . 63 Figure 36 Typical antenna positions for a weather-protected OATS or a SAC Horizontal

47、polarization validation measurements 64 Figure 37 Typical antenna positions for a weather-protected OATS or a SAC Vertical polarization validation measurements for a smaller EUT 64 Figure 38 Typical antenna positions for a weather-protected OATS or a SAC Horizontal polarization validation measuremen

48、ts for a smaller EUT 65 Figure 39 Measurement positions for FAR site validation 67 Figure 40 Example of one measurement position and antenna tilt for FAR site validation . 68 Figure 41 Typical quasi free-space reference SA measurement set-up 71 Figure 42 Theoretical free-space NSA as a function of f

49、requency for different measurement distances . 73 Figure A.1 Short dipole antenna factors for RL= 50 . 103 Figure B.1 Method using network analyzer 109 Figure B.2 Method using measuring receiver and signal generator 110 Figure B.3 Example of capacitor mounting in dummy antenna . 110 Figure C.1 The loop-antenna system, consisting of t