TÜBİTAK

Soydan Çakır

04/04/2017

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Main Activities in EMC:

• EMC Tests (Military & Civil & Automotiv)

• EMC Calibrations

• EMC Test / Calibration Laboratory Installation

Projects

• EMC Consultancy

• EMRP/EMPIR Projects

Electromagnetic Laboratory

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CE101:Conducted Emissions, Power Leads; 30 Hz – 10 kHz

CE102:Conducted Emissions, Power Leads; 10 kHz – 10 MHz

CE106: Conducted Emissions, Antenna Terminal; 10 kHz – 40 GHz

CS101: Conducted Susceptibility, Power Leads; 30 Hz – 150 kHz

CS103: Conducted Susceptibility, Antenna Port, Intermodulation; 15 kHz – 10 GHz CS104: Conducted Susceptibility, Antenna Port, Rejection of Undesired Signals; 30 Hz

– 20 GHz

CS105: Conducted Susceptibility, Antenna Port, Cross Modulation; 30 Hz – 20 GHz

CS106: Conducted susceptibility, transients, power leads

CS109: Conducted Susceptibility, Structure Current; 60 Hz – 100 kHz CS114: Conducted Susceptibility, Bulk Cable Injection; 10 kHz – 200 MHz

CS115: Conducted Susceptibility, Bulk Cable Injection, Impulse Excitation

CS116: Conducted Susceptibility, Damped Sinusoidal Transients, Cables and

Power Leads; 10 kHz to 100 MHz

RE101: Radiated Emissions, Magnetic Field; 30 Hz – 100 kHz RE102: Radiated Emissions, Electrical Field; 10 kHz – 18 GHz

RE103: Radiated Emissions, Antenna Spurious and Harmonic Outputs; 10 kHz – 40

GHz

RS101: Radiated Susceptibility, Magnetic Field; 30 Hz – 100 kHz

RS103: Radiated Susceptibility, Electrical Field; 2 MHz – 40 GHz

MIL-STD-461E/F MILITARY EMC TESTS

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• Conducted Emission (EN55022, EN55011, EN55014-1 , EN61000-6-3, EN61000-6-4)

• Radiated Emission (EN55022, EN55011, EN61000-6-3, EN61000-6-4, 95/54/EC, 72/245/EEC, 75/322/EEC)

• Disturbance Power (EN55014-1)

• Click (55014-1)

• Radiated Immunity (EN61000-4-3, EN55024, EN61000-6-1, EN61000-6-2, EN55014-2, 95/54/EC, 72/245/EEC, 75/322/EEC)

• Conducted Immunity (EN61000-4-6, EN55024, EN55014-2, EN61000-6-1, EN61000-6-2)

• EFT / Burst (EN61000-4-4, EN55024, EN55014-2, EN61000-6-1, EN61000-6-2)

• Surge (EN61000-4-5 , EN55024, EN55014-2, EN61000-6-1, EN61000-6-2)

• ESD (EN61000-4-2 , EN55024, EN55014-2, EN61000-6-1, EN61000-6-2)

• Magnetic Immunity (EN61000-4-8 , EN55024, EN55014-2, EN61000-6-1, EN61000-6-2)

• Voltage Dips and Interruptions (EN61000-4-11 , EN55024, EN55014-2, EN61000-6-1, EN61000-6-2)

• Harmonic Currents (EN61000-3-2)

• Flicker (EN61000-3-3)

COMMERCIAL EMC TESTS IN ACCORDANCE WITH

EN/IEC STANDARDS

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• Antenna Calibrations (ANSI C63.5:2006 and SAE-ARP 958)

• Electrical / Magnetic Field Calibrations (IEEE 1309:2005)

• Loop Antenna Calibrations (IEEE291:1991 and SAE-ARP 958)

• Rod Antenna Calibrations (ANSI C63.5:2006 and SAE-ARP958)

• Absorbing Clamp Calibrations (CISPR16-1-3:2004)

• Current Clamp Calibrations (CISPR 16-1-2:2006 and ISO 11452-4: 2005)

• Active / Passive Voltage Probe Calibrations (CISPR16-1-2:2006)

EMC-RELATED CALIBRATIONS

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TEST AND MEASUREMENT CAPABILITY

• Radiated immunity

10 kHz - 1 GHz, E=200 V/m at 2 m distance

• Radiated Immunity

1-18 GHz, E = 500 V/m @ 1 m

18 - 40 GHz, E=200 V/m @ 1 m

• Conducted Immunity

20 Hz - 1 GHz

• Radiated/Conducted Emission

20 Hz - 40 GHz

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SEMI-ANECHOIC CHAMBER

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SMALL ANECHOIC CHAMBER

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Chamber Dimensions L: 8.89 m, W: 3.99 m, H: 3.53 m

Absorbers Pyramid Foam

Frequency Range 500 MHz – 40 GHz

Maximum Field Strength 500 V/m

(for measurement distance 1m)

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GTEM / TEM CELLS (DC – 700 MHz)

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OPEN AREA TEST SITE

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ANTENNA CALIBRATIONS at OATS and SAC

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• Antennas: Rod, Biconical, Bilog, Log-Per ve Horn

•Frequency Range: 10 Hz – 40 GHz

•Measurement Distance : 1 m, 3 m and 10 m

Standards: IEEE C63.5:2006 and SAE-ARP 958

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EM SENSOR CALIBRATIONS (30 Hz – 400 MHz)

(IEEE1309:2005)

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EM SENSOR CALIBRATIONS (500 MHz – 40 GHz)

(IEEE1309:2005)

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EM SENSOR CALIBRATIONS (IEEE1309:2005)

(Magnetic Field: 30 Hz – 400 kHz)

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LOOP ANTENNA CALIBRATIONS (30 Hz – 30 MHz)

(IEEE-291:1991 and SAE-ARP958)

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ABSORBING / CURRENT CLAMP CALIBRATIONS

(CISPR16-1-3:2004, CISPR 16-1- 2 :2006 , ISO 11452-4: 2005)

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EMRP “EMF & SAR” Project (2008 – 2011)

• S. Çakır, et all, IEEE Sensors Journal,, Vol. 12, No: 7, July 2012.

• M. Çetintaş, et all., IEEE Trans. on Elect. Com., Vol. 54, No: 1, Feb. 2012.

• M. Çetintaş, et all., IEEE Trans. on Elect. Com., Vol. 52, No. 1, Feb. 2010.

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EMRP IND60 – EMC INDUSTRY

Standard laboratory

Traceability

Uncertainty

Precision

Reliability

Reflections

Near Field Effects

Line Impedance

Field Uniformity

NSA

CM Impedance

EUT - Antenna

Coupling

Correlation

Traceability

Uncertainty

Precision

Reliability

Reflections

Near Field Effects

Line Impedance

Field Uniformity

NSA

CM Impedance

EUT - Antenna

Coupling

Correlation

Industrial environment

Connection & Correlation

EMC IN DEVELOPMENT STAGE , RELIABLE PRODUCTION, CERTIFICATION

REDUCTION IN COSTS

REDUCTION IN

CONSUMED TIME

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LISNs, CDNs are used in Conducted Emission&Immunity

Tests of Power Leads

LISNs/CDNs

Conducted Emission Test Setup

Conducted Immunity Test Setup

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There are many LISN/CDN manufacturers and types

Impedance, Phase and Insertion Loss shall be measured for EMC tests

Calibrations of LISNs and CDNs for CE and CI tests are always problematic

due to the lack of required adaptors between VNA and LISNs/CDNs!

LISN/CDN Calibrations

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Unknown Connection

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We, as EMC laboratories, request RF/Microwave laboratories;

• to seriously include calibrations of LISNs/CDNs into their working scope and

projects

• to be able to measure impedance, phase and insertion loss precisely with VNA for any LISN type as per the CISPR standards

• not to reject our calibration demands

Expectations from RF/Microwave Labs about LISN/CDN Calibrations

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ISNs (Impedance Stabilization Networks) are widely used in Conducted

Emission Tests of Communication Lines

ISN calibrations require VNAs and are always even more problematic and

more complicated than LISN/CDN calibrations

LCL (Longitudinal Conversion Loss) calibration in addition to the impedance

, phase and IL (Insertion Loss) calibration is a must and requires very special

calibration kits and adaptors.

Moreover, ISN and LCL calibration kits themselves also require calibration !

This remains as a big issue!

ISNs

ISN

ISN and LCL Calibration Kit

TESEQ SCHWARZBECK

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LCL (Longitudinal Conversion Loss): The LCL of a one- or two-port network

is a measure (a ratio expressed in dB) of the degree of unwanted transverse

signal produced at the terminals of the network due to the presence of a

longitudinal signal on the connecting leads.

Longitudinal conversion loss (LCL) is measured using a network analyser by

injecting a "common mode" signal between the pair and earth, and measuring

the resulting "differential mode" signal between the wires in a pair.

ISN LCL Measurements

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We,as EMC laboratories, request RF/Microwave laboratories;

• to include full calibrations of ISNs in their working scope seriously

• to measure impedance, phase, LCL and insertion loss precisely with VNA for any

ISN type as per the CISPR standards

• not to reject our ISN calibration demands

ISN Calibrations

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AN IMPROVED LINK IS REQUIED BETWEEN EMC and

RF/MICROWAVE LABS

RF/Microwave Laboratories EMC Laboratories

Link

Rationale : RF/Microwave laboratory personnel have always good knowledge of

calibrations but poor knowledge of actual application of EMC equipment in EMC

tests. A good knowledge link between two laboratories will increase consciousness

in tests and calibrations and will provide more reliable tests and calibrations

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The First Serious Step Taken in EMRP IND60 2013-2016

- LISN/CDN Calibrations

Development and characterization of an adapter used for calibration of LISN (Line Impedance Stabilization Network) was realized

S-matrix of the adapter was simulated and confirmed with 3 different methods

Mathematically removed repeatable errors of the calculable adapter provided traceable calibrations

With this adapter uncertainties of LISN calibrations were reduced.

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The Second Step in EMPIR 15RPT01 RFMicrowave In Progress

WP3 is specially allocated to EMC; Task 3.1 : Traceability for the calibration of pulse generators used for QP (Quasi-Peak detector)

Task 3.2: Investigation of non-metallic support effects on EMC test results by means of the VNA

Task 3.3: Development of “Just-Before-Test” verifications by means of the VNA for EMC conducted emission & immunity tests

Task 3.4: Investigation of loop antenna calibrations with the inclusion of the VNA

Mutual training sessions will be held between EMC and Microvave/RF laboratories to increase the link.

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The Third Possible Step – New EMPIR Project Proposal 2017–

Metrology for Electromagnetic Compatibility

Improvement of LISN calibrations

Improvement of calibration traceability for CDN (Coupling & Decoupling Networks) and CDNE(Coupling & Decoupling Networks for Emission) calibrations up to 300 MHz

Improvement of Calibration of Common Mode Absorbing Devices (CMAD) including calibration jig evaluation and substantial contribution to the calibration of common mode S-Parameters up to 1 GHz

Development of novel calibration procedures and specific reference standards for EMI receivers based on the FFT for transient and time-varying EM disturbances

Combination of RF measurement methods for higher efficiency

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