EMI (1) (Open Field Test Site)

, EMI 2 .

- : SITE (SITE ) - SITE ATTENUATION: SITE (SITE )

- ( : 5 cm ) - - ( 6 dB )

EMI (2) - - , : 0.1 ( 1 GHz : 3 cm )

( )

EMI (3) (Anechoic Chamber)

(Ambient Noise) (Ground Plane) .

- ( ) - ( ) - Site Attenuation (4 dB) - Ground Plane

EMI (4) (Anechoic Chamber) 1 to 4 mAntenna mastGroundplaneEUTdirect reflectedturntableShield enclosure

EMI (1) (EMI TEST RECEIVER)

(6 dB )

9 - 150 kHz: 200 HzCISPR BAND A0.15 - 30 MHz : 9 kHzCISPR BAND B30 - 300 MHz : 120 kHzCISPR BAND C300 1000 MHz : 120 kHzCISPR BAND D

(Peak) (Quasi-peak) (Average)

EMI (2) ( )

. , , . Dipole , Dipole .

EMI (3)

Rod AntennaLoop AntennaDipole AntennaBiconical AntennaLog-periodic AntennaHorn Antenna

EMI (4) LISN (Line Impedance Stabilization Network)

- Line Noise Transducer

- Impedance Matching - Impedance - Line Noise

- Impedance : 50 150 - : 9 kHz ~ 30 MHz

LISN

(EMI Noise) (Broadband Noise)

, , Spectral , Spectral

( Narrowband Noise)

Sharp Peak Spectral , , Spectral

EMI (1) - EUT Cable( )

- Spectrum analyzer Scan( ) - Limit Line 6dB Margin Scan

( )Conducted Emission Test

EMI (1) - EUT(Equipment Under Test)

- Spectrum analyzer Scan( ) Limit Line 6dB Margin Scan

()1 to 4 mAntenna mastGroundplaneEUTdirect reflectedturntableRadiated Emission Test

Electrostatic discharge(ESD) immunity Test(1) ESD

- . -

Electrostatic discharge(ESD) immunity Test(2)

- (, , Connect ), HCP VCP -

Level - 4kV, 8kV, B -

- 10 - 1

- ( ). - Tip . - Level I Level . - ( EUT ) .

Radiated immunity Test(1)

- EUT

Radiated immunity Test(2)

- 4 (Antenna Polarization : / )

Level - 3V/m, A. -

- 80MHz~1GHz, 1% Step., AM Modulation

- Field Uniformity - - - Field Uniformity - 1m 1m 0.3~0.4m - ( )

EFT/Burst immunity Test(1) EFT/Burst -

Conductive CouplingEFT/Burst

EFT/Burst immunity Test(2)

- , , Data,

Level - 1kV, 5kHz, B - 0.5kV, 5kHz, B. -

- / CDN(Coupling/Decoupling Network) . - Data, Coupling Clamp

- 1m 0.3~0.4m 0.1m Table . - - .

Surge immunity test(1) Surge - Surge (), - Indoor 6kV, Outdoor 10kV

Conductive Coupling

Surge immunity test(2)

- EUT ( Surge ) .

Level - 0.5 4kV -

- CDN(Coupling/Decoupling Network) .

- -, - - , - ( )

Conducted Immunity Test(1) - /

1CDNEUT2CDNT2T T = 50, T2 = (6dB), CDN =

Conducted Immunity Test(2)

- , , Data ,

Level - 1V, 3V, 10V -

- CDN - EM Clamp - Current Injection Probe

- . - ( ) . - .( )

Power frequency magnetic field Immunity Test(1) - - : CRT ,

Power frequency magnetic field Immunity Test(2)

- EUT

Level - 1A 100A -

- - . - 1m . ( ) -

Voltage dips, short, interruption & Variation Immunity Test(1) - , ,

Voltage dips, short, interruption & Variation Immunity Test(2)

-

Level - 0%, 40% 70% 100%, 60% 30%

- EUT - . - 10s 3 / - - .

(1)

- : CISPR Pub. 16, 16-1 - : ANSI C 63.4

- (OATS-Open Field Test Site)

Radiated Emission / ,

: Data

(1)

- (Anechoic Chamber) - Open Site ,

() , () ()

- (Shield Room) : ,

- , (Receiver), LISN, Absorbing Clamp

How can you get in touch with Rohde & Schwarz ?

Phone++82-3485-1900Fax ++82-547-4300Homewww.rohde-schwarz.co.krE-mailsales@rskor.rohde-schwarz.comIf you have any questions on EMC, Please contact to Rohde & Schwarz Korea !