For more detailed information about a Test System for Radiated Immunity please take a look into our brochure down below.

Immunity to radiated radio-frequency electromagnetic fields acc. to:

  • IEC/EN 61000-4-3
  • MIL-STD 461, RS 103
  • ISO 11452-2

Test devices:

EMC Control Unit

The ECU-6 is a central EMC test and control unit, which combines in just one compact box many major test components like signal generator, power meter, directional couplers and relay switching unit, which are needed for EMC tests. That reduces the cabling work and possible cabling mistakes to a minimum. Furthermore it includes general functions like EUT-monitoring and an interlock safety-system. With all the functions described above, the ECU-6 is a real all-rounder, which can be used for many different conducted and radiated immunity tests as well as control unit to switch between EMI-receiver and spectrum analyzer and different measuring antennas without time consuming cabling work. It allows to control and to switch automatically between up to four external amplifiers, all connected to the ECU-3/-6 and up to three different outputs for antennas or coupling devices (CDNs, EM-coupling clamp, BCI-clamps). The integrated signal generator is available to cover the frequency range from 9 kHz to 6 GHz. Amplitude modulation is available with a modulation rate of 1 Hz to 30 kHz and a modulation depth of 0 % to 90 %. Pulse modulation can be switched on with a repetition frequency of 0.1 Hz to 100 kHz and a duty cycle of 1 % – 99 %. In a word, it includes all requirements according to present EMC standards and it is best prepared for possible future changes.

 

Special Features:

 

Conducted immunity tests according to IEC/EN 61000-4-6, 10 kHz – 230 MHz

 

BCI-tests according to ISO 11452-4 and MIL-STD 461, CS 114

 

Radiated immunity tests according to: IEC/EN 61000-4-3, ISO 11452-2/3/4/5, MIL-STD 461, RS 103

 

Automatic switching between up to four external power amplifiers and connected coupling units / antennas

 

Automatic switching between up to two EMI-receivers, spectrum analyzers and three different antennas

 

Easy integration into any control software by dll-driver

 

Integrated interlock safety system

 
 
 

Technical specifications

Signal Generator ECU-6
Output 50 Ω, N male
Output (Relay) 4 x N male
Frequency range 9 kHz to 6.5 GHz
Frequency resolution 0.001 Hz
Output level range -100 dBm to +13 dBm
Output level resolution 0.1 dB
Output level accuracy ±1 dB max.
Accuracy (frequency) ±100 ppm
Harmonics < -30 dBc
Non harmonics < -55 dBc
 
Amplitude modulation ECU-6
Modulation rate 1 Hz to 20 kHz; resolution 0.1 Hz
Modulation depth 0 to 90 %; resolution 1 %
Modulation waveforms sinusoidal, triangular, square
 
Pulse modulation ECU-6
On/off ratio typ. 80 dB
Repetition frequency 0.1 Hz to 100 kHz
Duty cycle 1%-99%; resolution1%
 
Frequency modulation ECU-6
Modulation rate 300 Hz to 300 kHz
 
RF-Power Meter ECU-6
Number of channels  9
Frequency Range 10 kHz – 500 MHz
(channel 1,2,9)
100 kHz – 6 GHz
(channel 3,4,5,6,7,8)
Measuring range -60 dBm to +20 dBm (10 kHz ≤ f ≤ 4 GHz)
-45 dBm to +20 dBm (4 GHz < f ≤ 6 GHz)
Accuracy ±1 dB (0.5 dB typical)
Resolution 0.1 dB
Max. input level +27 dBm (= 500 mW
VSWR 1.15
EUT-fail input 2 x TTL/CMOS compatible
Input resistance 2.2 kΩ
Level TTL / CMos compatible, optical decoupled
 
EUT-monitor input ECU-6
Input voltage (2x) 0 – 10 V
Resolution 2.5 mV
Input impedance 100 kΩ
USB-A Multimeter (for EUT control)
 
Remote control ECU-6
USB-B Connection to computer
GPIB / IEEE488 Connection to computer
Ethernet / RJ45 option
 
Display ECU-6
Displayed items Frequency, Power levels P(forw), P(rev),
modulation (4 lines x 16 characters)
 
RF-Relay Switching Unit ECU-6
max. power up to 100 MHz 2000W
max. power up to 600 MHz 1000W
max. power up to 1 GHz 700W
max. power up to 3 GHz 400W
max. power up to 6 GHz 300W
 
General data ECU-6
Temperature range 0 to 40°C
Warm-up time 15 min.
Housing 19”-Subrack or desktop case
Dimensions (W x H x D) 449 mm x 177 mm x 580 m
Weight approx. 18 kg
AC input 100 – 240 VAC, 50 / 60 Hz

Part Numbers

  
ECU-6Compact EMC control unit,
basic Instrument, 9 kHz – 6 GHz
ECU-DC1ADirectional Coupler,
10 kHz -250 MHz, 30 dB, 100 W
ECU-DC1BDirectional Coupler,
10 kHz – 400 MHz, 30 dB, 100 W
ECU-DC1CDirectional Coupler,
10 kHz – 250 W, 30 dB, 500 W
ECU-DC2Directional Coupler,
80 MHz – 1000 MHz, 50dB, 1500 W
ECU-DC3Directional Coupler,
1 GHz- 4 GHz, 40 dB, 600 W
ECU-DC4Directional Coupler,
2 GHz – 8 GHz, 40 dB, 600 W
ECU-KS2Cable-set and GPIB-interface for
immunity test systems with 2 amplifiers
ECU-KS3Cable-set and GPIB-interface for
immunity test systems with 3 amplifiers
ECU-KS4Cable-set and GPIB-interface for
immunity test systems with 4 amplifiers
ECU-LANAdditional interface: LAN
ECU-OUT2Switching between 2 outputs
(antenna/load)
ECU-OUT3Switching between 3 outputs
(antenna/load)
ECU-PM1RF-Power Meter / RF-milli-voltmeter,
10 kHz – 500 MHz, 1 channel
ECU-PM2RF-Power Meter / RF-milli-voltmeter,
100 kHz – 6 GHz, 2 channel
ECU-REC1Switching to emission path and
connection of 1 measuring receiver
/ spectrum analyzer
ECU-REC2Switching to emission path and
connection of 2 measuring receivers /
spectrum analyzers
ECU-RI19”-Rack version
ECU-SW6Standard software for testing
acc. to IEC/EN 61000-4-6 in
a system with ECU-3/-6

Field Strength Meter

The Frankonia EFS field strength meters especially have been designed for field strength measurements / field homogeneity measurements during radiated immunity tests according to IEC/EN 61000-4-3 / -20. But it could also be used to measure the radiation exposure of the environment, for example at workplaces or flats.

The EFS is an isotropic miniature E-field sensor to ensure that the E-field will not be influenced by the size of the sensor itself. It even does not need any metering unit (which could also influence the field strength), because of its direct fibre optic output which allows direct connection of the sensor to the USB-interface of the control PC or laptop. The measuring values may be displayed via the individual IEC/EN 61000-4-3 / -20 control software or via a Windows software included in the delivery.

The EFS-10 / EFS-100 cover the frequency range from 10 kHz up to 9.25 GHz and are able to detect electrical field strength in the range from 0.14 V/m to 500 V/m (depending on type).

The sensors are battery operated by Li-Mn batteries, which allow a maximum operation time of 80 hours before recharging.

 

Features

 

Extreme small size

 

PC connection via fibre optic link

 

Excellent isotropy (0.3 dB typical)

 

Frequency range: 10 kHz to 9,25 GHz

 

Field strength measurements from 0.14 V/m to 500 V/m

 

Up to 80 hours operating time before recharging

 
Technical specificationsEFS-10EFS-100
Frequency range10 kHz-9.25Ghz100 kHz – 9.25 GHz
Flatness0.1Mhz-150MHz: 0.4 dB1 – 150 MHz: 0.8 dB
With frequency correction OFF0.05GHz-6GHz: 1.6 dB
0.03GHz-7.5GHz: 3.2 dB
0.5 – 6 GHz: 1.6 dB
0.3 – 7.5 GHz: 3.2 dB
With frequency correction ON0.05GHz-7.5GHz: 0.4 dB0.3 – 7.5 GHz: 0.4 dB
Dynamic range (single range)0.5-500 V/m (60 dB)0.14 – 140 V/m (60 dB)
Linearity0.4 dB @ 50 MHz / 1-500 V/m0.4 dB @ 50 MHz / 0.3 – 100 V/m
Resolution0.01 V/m
Sensors6 monopoles
Isotropicity0.5 dB (0.3 dB typical) (@50 MHz)
Overload1000 V/m300 V/m
Measured data X-Y-Z axissampling simultaneous on X-Y-Z axis
Sampling rate22 S/s to 0.03 S/s, depending on filter setting
Digital filter2.3 to 28 Hz, low-pass-pre-settable
Internal battery3V-5mAh, rechargeable Li-Mn
Operation time80 hours @0.4 S/sec., 28 Hz filter
60 hours @ 5 S/sec., 28 Hz filter
Recharging time48 for full operation time
Internal data memoryserial number, calibration date, calibration factors, firmware version
Communicationbidirectional fiber optic link
Fibre optic connectorHFBR-0500
Fibre optic length10 m standard (20/40 m) optional
Fibre optic to PC connectionfibre optic to RS232 converter, RS232 to USB converter
PC Softwareincluded (display of field, temperature and battery voltage measurements,
setting of filters, sampling rate, frequency)
Operating temperature-10 °C ÷ +50 °C
Temperature reading0.1 °C resolution
Battery voltage reading10 mV resolution
Dimensions53 mm overall, (body: 17 mm diameter, sensor: 17 mm)
Weight25 g, including 1 m fibre optic pigtail
Probe mount20 UNC female
Included accessories10 m fibre optic cable, optical/RS232 adapter + RS232/USB adapter,
software, battery charger
Optional accessories20 m fibre optic cable, order-no.: EFS-OF20
40 m fibre optic cable, order-no.: EFS-OF40

The Frankonia EFS field strength meters especially have been designed for field strength measurements / field homogeneity measurements during radiated immunity tests according to IEC/EN 61000-4-3 / -20. But it could also be used to measure the radiation exposure of the environment, for example at workplaces or flats.

The EFS is an isotropic miniature E-field sensor to ensure that the E-field will not be influenced by the size of the sensor itself. It even does not need any metering unit (which could also influence the field strength), because of its direct fibre optic output which allows direct connection of the sensor to the USB-interface of the control PC or laptop. The measuring values may be displayed via the individual IEC/EN 61000-4-3 / -20 control software or via a Windows software included in the delivery.

The EFS-10 / EFS-100 cover the frequency range from 10 kHz up to 9.25 GHz and are able to detect electrical field strength in the range from 0.14 V/m to 500 V/m (depending on type).

The sensors are battery operated by Li-Mn batteries, which allow a maximum operation time of 80 hours before recharging.

 
 

Extreme small size

 

PC connection via fibre optic link

 

Excellent isotropy (0.3 dB typical)

 

Frequency range: 10 kHz to 26,5 GHz

 

Field strength measurements from 0.14 V/m to 500 V/m

 

Up to 80 hours operating time before recharging

 
Technical specificationsEFS-300EFS-500
Frequency range300kHz-18GHz300kHz-26.5GHz
Flatness0.3MHz-18000MHz: 0.4dB0.10MHz-18000MHz: 1.8dB
With frequency correction OFF3MHz-8200MHz: 1.4dB
1MHz-12000MHz: 2.4dB
3MHz-23000MHz: 3.2dB
With frequency correction ON0.6MHz-18000MHz: 3.8dB0.3MHz-26500MHz: 0.4dB
Dynamic range (single range)0.17-170 V/m (60dB)0.4-800 V/m (66dB)
Linearity0.4dB @ 50MHz / 0.3-170V/m0.4dB @ 50 MHz / 0.8-800V/m
Resolution0.01 V/m
Sensors6 monopoles
Isotropicity0.4dB (0.2dB typical @ 50MHz)
Overload350 V/m1600 V/m
Measured data X-Y-Z axissampling simultaneous on X-Y-Z axis
Sampling rate22 S/s to 0.03 S/s, depending on filter setting
Digital filter2.3 to 28Hz, low-pass, pre-settable
Internal battery3V-5mAh, rechargeable Li-Mn
Operation time80 hours @ 0.4 S/sec., 28 Hz filter
60 hours @ 5 S/sec., 28 Hz filter
Recharging time48 hours for full operation time
Internal data memoryserial number, calibration data, calibration factors, firmware version
Communicationbidirectional fiber optic link
Fibre optic connectorHFBR-0500
Fibre optic length10m standard (20/40m optional )
Fibre optic to PC connectionfiber optic to RS232 converter, RS232 to USB converter
PC Softwareincluded (display of field, temperature and battery voltage measurements,
setting of filters, sampling rate, frequency)
Operating temperature-10 °C ÷ +50 °C
Temperature reading0.1°C resolution
Battery voltage reading10mV resolution
Dimensions53mm overall, (body:17mm diameter, sensor: 17mm)
Weight25g, including 1m fiber optical pigtail
Probe mount20 UNC female
Included accessories10m fiber optical cable, optical RS232 adapter + RS232/USB adapter,
software, battery charger
Optional accessories20m fiber optic cable, order-no.: EFS-OF20
40m fiber optic cable, order-no.: EFS-OF40

The Frankonia EFS-LASER Electric Field Probe especially has been designed for field strength measurements / field homogeneity measurements during radiated immunity tests according to IEC/EN 61000-4-3. However, it is also excellent to measure the radiation pollution of the environment, for example at workplaces or flats.

The EFS-LASER is an isotropic miniature E-field sensor to ensure, that the E-field will not be influenced by the size of the sensor itself. It even does not need any metering unit (which could also influence the field-strength), because of its direct fibre-optic output, which does allow direct connection of the sensor to the USB-interface of the control PC or laptop. The measuring values may be displayed via the individual IEC 61000-4-3 control software or via a windows-software included in the delivery.

The EFS-Laser cover the frequency-range from 10 KHz – 6 GHz. The utilized linearization technology provides a dynamic range up to 100 dB. The EFS-Laser is a smart, fast, extremely accurate electric field probe, which provides linearization, temperature compensation, control and communication functions. Noise reduction and temperature compensation allow accurate measurments down to 0.1 V/m. The probe is laser-powered to allow continuous, galvanically isolated operation without recharging or battery replacement The power supply unit comes in a small handy box.

 

Features

 

Laser powered – no more empty batteries

 

Extreme small size

 

High resolution, high speed, low noise

 

Frequency range: 10 kHz to 6 GHz

 

Field strength measurements from 0.1 V/m up to 10 kV/m

 

Wide dynamic range

 

Continuous real-time data streaming

 

Temperature compensation

 
 
Computer-Interface 
PC InterfaceUSB 2.0
Application Softwareincluded
Burst Trigger Output Level3.3 V CMOS
Burst Trigger Output ConnectorBNC
Laser – Wavelength850 nm
Laser – Output Power750 mW
Laser – Shutdown Time1 ms
Fiber Optic ConnectorFC / ST
Fiber Optic Cable Length15 m
Max. Fiber Optic Cable Length100 m (sold on request)
Input Voltage (power supply included)5V ± 5%
Input Current< 2A
Ambient Temperature10 °C … 40 °C
Dimensions (W x D x H)483 x 43.5 (1HE) x 120mm
Field Sensor 
Frequency range10 kHz … 6GHz
Analog Rise Time
10 kHz … 100 MHz low Bandwidth
10 kHz … 100 MHz high Bandwidth
100 MHz … 6 GHz
4 μs
40 ns
25 ns
Minimum Pulse Width
Burst Mode
Streaming Mode
500 ns
2 μs
Resolution< 0.01 dB
Sampling Rate
Burst Mode
Streaming Mode
2 MSample/s
> 500 kSample/s
Field Strength
10 kHz … 100 MHz
100 MHz … 6 GHz
< 1 V/m … > 10 kV/m
< 0.1 V/m … > 700 V/m
Damage Level
10 kHz … 100 MHz
100 MHz … 6 GHz
40 kV/m
10 kV/m
Dynamic Range
10 kHz … 100 MHz
100 MHz … 6 GHz
Isotropy, 900 MHZ
80 dB … 100 dB
70 dB … 80 dB
< 1dB
Amplitude Accuracy
10 kHz … 10 MHz (1.5 V/m to 30 V/m)
> 10 MHz … 1 GHz (1 V/m to 80 V/m)
> 1 GHz … 8 GHz (3 V/m to 100 V/m)
1.3 dB
1.5 dB
1.0 dB
Linearity Error< 0.1 dB
Temperature Stability0.1 dB
Ambient Temperature10 °C … 40°C
Dimensions (W x D x H)67 x 67 x 124 mm

RF-Power Meter

The PMS 1084 is in the standard version a 2-channel RF-Power Meter for the frequency range from 100 kHz up to 6 GHz or from 10 kHz to 500 MHz (PMS 1084 B). The measuring range reaches from –60 dBm to +20 dBm. It is possible to upgrade the PMS 1084 up to max. 4 measuring channels at any time. The measured values can be displayed via a software which is included in the delivery or via the control software of an automated test system. For the integration of the PMS 1084 into a remote-controlled test system it is equipped with serial and USB interface. Hence the PMS 1084 is very good suitable for the automated measurement of forward and reverse power in immunity test systems acc. to IEC/EN 61000-4-3 / -6. It is available for the installation into 19”-rack or as stand-alone unit.

 
 
Technical specificationsPMS 1084PMS1084B
Number of channels2 (standard); up to 4 (option)
Frequency range 2 x Input-Module LF 10 kHz – 500 MHz
Frequency range 2 x Input-Module HF100 kHz – 6 GHz 
Measuring range-60 dBm to +20 dBm (10 kHz ≤ f ≤ 4 GHz)
-45 dBm to +20 dBm (4 GHz < f ≤ 6 GHz)
Accuracy± 1 dB (0.5 dB typical)
Resolution0.1 dB
Integration time0.5 – 200 ms (firmware)
Max. input level+27 dBm (= 500mW)
VSWRup to 2GHz -> 1:1.15
2 – 4 GHz -> 1:1.25
4 – 6 GHz -> 1:1.35
RF-Impedance50 Ω
Interface (PC)USB, RS232 (9-pol Sub D. female)
InputN-type female connector
Dimensions (DxWxH)172 x 482.6 x 44.3 mm
Weightapprox. 2.5 kg
Power supply115/230 V
Accessories includedPower cord, USB cable, application software, user manual
 
OptionsPMS 1084PMS1084B
PMS-CHAExpansion of 1 measuring channel (max. up to 4 channels); 100 kHz to 6 GHz
PMS-CHABExpansion of 1 measuring channel (max. up to 4 channels); 10 kHz to 500 MHz

Relay-Switching-Unit

The RSU Relay Switching Unit is applicable for all fields of RF- and EMC measurements to switch (manualor remote-controlled) from one input to 2 or 3 outputs. Typical applications in measuring systemsare changeover switching between different amplifiers, antennas or power meters. This does also prevent circuit faults due to wrong cabling. By means of a selector switch on the front panel of the RSU it is possible to work in manual mode or remote- control mode via the RS232, USB or GPIB interface.

The input/output connectors of the relays are installed on the rear panel of the RSU, this allows an easy cabling when or where the RSU is mounted into a 19”-rack. A RSU can be equipped with a maximum of 4 relays with 2 or 3 outputs. The quantity of relays with 2 or respectively 3 outputs is variable. The delivery includes a Windows software for easy remote-controlled applications. However for extensive systems it is recommended to integrate the RSU driver into the system control software.

The easy to follow commands for RS232 and GPIB interfaces are listed in the user manual.

 

Definition of the relay assembly

 
Technical specificationsRSU
Frequency rangeDC to 12.4 GHz (up to 18 GHz or 40 GHz optional)
Test level50 V cont., 300 V (1s) at energetically used frequencies
 DC…1GHz1 GHz…5 GHz5 GHz…10 GHz10 GHz…12.4 GHz
VSWR< 1.04< 1.14< 1.3< 1.5
Isolation> 90 dB> 80 dB> 70 dB> 70 dB
Insertion loss< 0.05 dB< 0.1 dB< 0.2 dB< 0.3 dB
Max. power input< 1.00 kW< 0.44 kW< 0.31 kW< 0.28 kW
Impedance50 Ohm
Rf-connectors / RelaysN-Female
Switching time< 60 ms
Number of operationsMax. 10/Minute
Operating temperature+10°C…  +40°C
Max. humidity< 90%
Cabinet19″-subrack or desktop case
Dimensions (D x W x W)435.5×448.9×132.55mm
Weight7.6kg

Antennas

The ALX-4000 is an ultra-broadband antenna for emission measurements and immunity tests according to nearly all relevant international standards in the frequency range from 25 MHz up to 4 GHz. With regard to its mechanical structure it is a linear polarized logarithmic periodic broadband antenna for the higher frequency range, combined with a 4:1 broadband dipole (aluminum) for the low frequency range. This kind of ultra-broadband antenna allows performance of EMC test in one run, without time consuming antenna changes.

 
 
Technical specificationsALX-4000
Frequency range25 MHz to 4 GHz
Max. input power100 MHz – 900 W
500 MHz – 300 W
1000 MHz – 210 W
2000 MHz – 140 W
3000 MHz – 100 W
Nominal impedance50 Ω
Connectortype N female
Isotropic gain (LP-Section)6.4 +/- 1.2 dBi
Antenna factor4 … 37 dB/m
Standing wave ratio SWR typ.< 1.5
Front to back ratio20 dB (f > 150 MHz)
Cross polarization>20 dB (30 MHz…1 GHz)
3 dB beamwidth typ. (E-Plane)45°-65° (f > 150 MHz)
≈ 78° (f < 150 MHz)
3 dB beamwidth typ. (H-Plane)90°-120° (f > 150 MHz)
Dimensions (W x L x D)1500 x 910 (1240) x 620 mm
Weight3.1 kg
Fixation (indexing ring)22 mm tube
UseEmission measurements
Radiated immunity tests

Stacked logarithmic-periodic broadband antenna for radiated immunity tests and emission measurements in the microwave frequency range. The antenna structure is made of laser-cut brass.

For protection of the fine antenna structure against damage the antenna is equipped with a low loss plastic protection cover. The MAX-9 is especially suitable for immunity testing acc. to IEC 61000-4-3 because of its good field uniformity. Further outstanding characteristics of the MAX-9 are the wide bandwidth, the nearly constant high gain, very good impedance matching as well as equal beamwidth in E- and H-plane.

 
Technical specificationsMAX-9
Frequency range600 MHz – 10.5 GHz
Max input power300 W (f = 1 GHz)
150 W (f = 6 GHz)
Nominal impedance50 Ω
Connectiontype N female
Isotropic Gain typ. 10.3 dBi ± 1.5 dB
Antenna factor18 … 41 dB/m
SWR typical< 1.5 (f < 7 GHz)
Front to back ratio> 25 dB typ.
Cross polarization rejection> 30 dB typ.
Half-power beamwidth (E-Plane)46° ± 10°
Half-power beamwidth (H-Plane)48° ± 10°
Dimensions (W x L x D) in mm460 (+215) x 270 x 270
Weight3.7 kg
FixationØ 22mm mounting tube
UseRadiated immunity tests
Emission measurements

Technical specifications    MAX-9-7/16

Same specifications as above with the following changes:

Frequency Range: 0.6 GHz – 7.5 GHz
Isotropic Gain: typ. 10.3 dBi,(0,6)0,7-7,5 GHz
Max. Input Power: 380 W (f = 5 GHz) | 950 W (f = 1 GHz)

Stacked logarithmic-periodic broadband antenna for radiated immunity tests and emission measurements in the microwave frequency range. The antenna structure is made of laser-cut brass.

For protection of the fine antenna structure against damage the antenna is equipped with a low loss plastic protection cover. The MAX-18 is especially suitable for immunity testing acc. to IEC 61000-4-3 because of its good field uniformity. Further outstanding characteristics of the MAX-18 are the wide bandwidth, the nearly constant high gain, very good impedance matching as well as equal beamwidth in E- and H-Plane.

 
Technical specificationsMAX-18
Frequency range700 MHz – 20 GHz
Max input power50 W
Nominal impedance50 Ω
Connectiontype N female
Isotropic Gaintyp. 8.6 dBi ± 1 dB
Antenna factor20 … 49 dB/m
SWR typical< 2
Dimensions (W x L x D) in mm490 x 270 x 270
Weight1.2 kg
Front to back ratio> 25 dB typ.
Cross polarization rejection> 28 dB typ.
Half-power beamwidth (E-plane)58°
Half-power beamwidth (H-plane)60°

The horn antennas HAX offer a very low SWR in their nominal frequency range and a very broad bandwidth. The gain increases with frequency up to approx. 18 dBi. The increasing gain with frequency helps to compensate cable losses.

The HAX series is suitable for both, transmission and receiving applications. The maximum allowed input power is only limited by the female N-connector. The detailed manual of the calibrated test antennas includes gain, antenna factor, SWR and directional patterns. The antenna is mounted with the 22 mm tube, equipped with a index ring for quick changes of polarization without using tools.

 
 
Technical specificationsHAX-6
Frequency range500 MHz – 6 GHz
Max input powerlimited only by N-connector
Connectiontype N female
Gain6 … 18 dBi
Antenna factor19 … 29 dB/m
Standing wave ratio SWR typ.< 2
Dimensions (W x L x D) in mm424 x 314 x 820
Weight4.1 kg
FixationØ 22mm mounting tube
Materialaluminium
UseRadiated immunity tests
Emission measurements

Double-stacked log.-periodic antennas have mainly been developed in order to reach the highest field strength levels acc. to automotive-, avionics- and military standards with as less as possible input power. Antenna gain saves amplifier power!

The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement of 2.5dB compared to an ordinary LP antenna. This is especially important for immunity testing, where a maximum field strength and a good field uniformity is required. The beam- width in the E-plane and the H-plane are nearly identical, providing an optimized illumination of the EUT with minimized ground reflection influence.

Further the cross polar rejection of the AXL-80 is excellent and the high and flat gain of about 9dBi over a broad frequency range is the main advantage of the AXL-80. Because of its physical dimensions the main application of the AXL-80 is in bigger anechoic chambers / test sites for radiated immunity tests and emission measurements. From its technical / mechanical design it is a double- stacked log.-periodic antenna, consisting of two excellent ordinary log.-periodic structures. For easy transport and storage it is possible to remove the rear elements of the antenna, which are fixed by fast links.

 
Technical specificationsAXL-80
Frequency range70 MHz – 4 GHz
Max. input power1.5 kW (intermitt.)
(N-connector)1 kW (cont.)
Max. input power3 kW (intermitt.)
(7/16-connector)2 kW (cont.)
Nominal impedance50 Ω
Isotropic gain9 ± 2 dBi
Antenna factor2 … 32 dB/m
Standing wave ratio SWR typ.1.6 (f < 3GHz)
Front to back ratio8 – 22 dB
Cross polarization> 30 dB
3 dB beamwidth typ. (E-Plane)60° – 75°
3 dB beamwidth typ. (H-Plane)50° – 65°
Dimensions (W x L x D) in mm1480 x 1480 x 1340
Weight8.1 kg
FixationØ 22mm mounting tube
UseEmission measurements
Radiated immunity tests

The AXL-80ES special is nearly identical like the AXL-80E but with folded longest elements and smaller structure angle.

The stacked Log Periodic Dipole Antenna (Stacked LPDA) consists of two ordinary Log.-Per. structures. The excellent characteristics (flat gain over a large bandwidth, low SWR) of the ordinary LPDA designs could be maintained using the stacked LPDA design. The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement of 2.5 dB compared to an ordinary LP antenna. This is especially important for immunity testing, where a maximum field-strength and a good field uniformity is required. The beam width in the E-Plane and the H-plane are nearly identical, providing an optimized illumination of the EUT with minimized ground reflection influence. Further the cross polar rejection of the AXL-80ES is excellent. The fast-links allows to disassemble the rear elements without any need for further tools within a few seconds. These fast-links divide the antenna into five parts, which can be stored and transported easily.

 
Technical specificationsAXL-80ES
Frequency range80 MHz – 2.7 GHz
Max. input power (N-connector)1 kW (const.)
1.5 kW (intermitt.)
Max. input power (7/16-connector)2 kW (cont.)
3 kW (intermitt.)
Nominal impedance50 Ω
Standing wave ratio SWR typ.< 1.5
3 dB beamwidth typ. (E-Plane)47°-87°
3 dB beamwidth typ. (H-Plane)41°-107°
Dimensions (W x L x D) in mm1500x1740x1400
Weight9.8 kg
Fixation Ø 22mm mounting tube

The AXL-200 has especially been designed for the generation of high field strength levels acc. to automotive immunity standards. The small dimensions of the antenna does also allow to keep the min. required distance of 25cm to the floor, when testing in vertical polarization.

From the mechanical design it´s a double-stacked logarithmic periodic antenna, consisting of two excellent ordinary log.-periodic structures. This design guarantees a high and flat gain of 9-10dBi over a large bandwidth and a low SWR.

The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement of ca. 2 dB compared to an ordinary LP antenna. This is especially important for immunity testing, where a maximum field strength and a good field uniformity is required. The beamwidth in the E-plane and the H-plane are nearly identical, providing an optimized illumination of the EUT with minimized ground reflection influence. Further the AXL-200 has an excellent cross-polar rejection.

 
Technical specificationsAXL-200
Frequency range150 MHz – 4 GHz
Max. input power (N-connector)2 kW (intermitt.)
1 kW (cont.)
Max. input power (7/16-connector)3 kW (intermitt.)
2 kW (cont.)
Nominal impedance50 Ω
Isotropic gain9 … 10 ± 1 dBi
Antenna factor8 … 24 dB/m
Standing wave ratio SWR typ.< 1.5
Front to back ratio> 16 dB
Cross polarization>30 dB (200 MHz … 1 GHz)
3 dB beamwidth typ. (E-Plane)64° – 53°
3 dB beamwidth typ. (H-Plane)63° – 44°
Dimensions (W x L x D)930 x 890 x 940
Weight4.6 kg
Fixation (indexing ring)Ø 22mm mounting tube
UseRadiated immunity tests and
Emission measurements
acc. to automotive standards

MIL-STD 461, RS 101:

Relay-Switching-Unit

The MTS-800 is a compact test system for broadband generation and measurement of magnetic fields. Its internal components allow automatic EMC tests according to automotive standards where high field strength need to be generated or measured.

In combination with our triaxial Helmholtz coils full automated susceptibility tests are possible at magnetic field strength up to 1000 A/m for frequencies from DC to 1 kHz. Lower field strength can be generated for frequencies up to 250 kHz. Due to the triaxial setup of our Helmholtz coil major improvement in device handling is achieved because there is no need to turn an EUT during tests.

Tests and measurements are controlled by a program which will set most parameter automatically. For any relevant standard, which are fulfilled by the MTS-800, limit values are already included into the software package, although any different value can be defined by a user. After every test full reports will be created automatically. Report layout is pre-defined, though any user-defined layout is possible. High performance is guaranteed by a self-calibration.

 

Special Features

 

Frequency range for emission and immunity measurements: DC–250kHz

 

800W precision power amplifier, signal generator and spectrum analyzer in one compact unit

 

All instruments may as well be used as stand-alone devices

 

Powerful but easy to operate software, fully expandable for future standards modifications

 

Standard software allows easy operation, report generation and integration of external measuring instrument for EUT monitoring

 

Prepared for connection of external multimeter for EUT control

 

Fully automated tests with triaxial Helmholtz coil. Software controlled generation of magnetic field in x-, y- and z- direction; no need to turn the EUT!

 

Large variety of extensive accessories available

 

The MTS-800 complies to all magnetic field requirements of relevant EMC and military standards

 

Options

 

Common mode test adapter for balanced signal and control connections according to IEC/EN 55103-3

 

Calibration network for common mode test adapter according to IEC/EN 55103-2

 

Current transducer for balanced video connections according to IEC/EN 55103-2

 

Enclosed variable transformer for short term field according to IEC/EN 61000-4-8; prim. 230 V, sec. 0 to 230 V, max. current 20 A; incl. supply cable

 

Applications

Magnetic Field Generation
MTS-800 enables a user to generate strong magnetic fields up to 1000 A/m. Even alternating fields up to 250 kHz can be generated by the magnetic test system.

Low Frequency emission and immunity tests
acc. to MIL-STD 461, CE 101, RE 101, CS 101, CS 109 and RS 101. Individual software modules and hardware accessories are available for each of these tests.

Automotive Testing
Intensive testing is required for new products which should be used in any automotive application. The MTS-800 allows fast and easy testing according to many automotive standards as described before.

 

Technical specifications

Voltage input (Analyzer) 
Frequency rangeDC – 250 kHz
Input impedance1 MΩ / 50 Ω switchable
ConnectorXLR, unbalanced
Max. input voltage100 V continuous (attenuator autoset at overvoltage); 10 V at 50 Ω
Gain-20/0/20 dB Preamplifier, 0/20/40 bB ADC Amplifier; Self-calibration with ultra stable on-board reference
 
Current input 
Frequency rangeDC – 250 kHz
Shunts10 mΩ / 1 Ω / 100 Ω
Max. input current20 A continuous (overload protection);
1 Ω and 100 Ω shunt are protected by an additional 1.5 A fuse
Connector4 mm safety jack (+, -) measurement via insulation amplifier or input jacks
Measurement range20 A, 10 A, 1 A, 100 mA, 10 mA, 1 mA automatic offset and gain; Self-calibration with ultra stable on-board reference
 
AD converter 
Resolution16 Bit
Sampling rate1.25 MSPS
Aliasingfilter0.01 dB Tschebyscheff filter, fg = 260 kHz; filter may be switched off
 
Generator 
Frequency rangeDC – 250 kHz
Output impedance50 Ω
ConnectorBNC, unbalanced
SignalSine wave / triangular / square wave / DC
Amplitude0 to 10 VAC, -10 V to +10 VDC
Resolution12 Bit (2.5 mV), Switchable – 20 dB Attenuator; Self-calibration with ultra stable on-board reference
 
Amplifier 
Frequency rangeDC – 1 MHz
Connector4 mm safety jacks (output); BNC, unbalanced (input)
Current16 Arms
Voltage50 Vrms / 75 VDC
Distortion (DC-100 kHz, load ≥ 4 Ω)< 0.10 %
 
General data 
EUT control / Connector9-pin Sub-D; RS232
Connection to ComputerUSB
Temperature range0 to 40 °C
Warm-up time15 min.
Housing19”-Subrack or desktop case
Dimensions (WxHxD)449 x 177 x 580 mm
Weight (shipping)approx. 40 kg (net 34 kg)
Gain10 ±0.1% (±0.01% / °C)
 
 

Features

Automatic Testing Capabilities
Full compliance with several immunity test as ISO 11452-8, MIL-STD-461 RS101, CS101, CS109, IEC/EN 55103-2, IEC/EN 61000-4-8, SAE J1113-2, SAE J1113-22, Ford ES-XW7T-1A278-AC, GM W3097, PSA B21 7110, Renault 36-00-808, DC-11224, DC 10614 and similar standards. Furthermore the MTS-800 allows emission measurements according to MILSTD- 461E/F RE101, CE101 and IEC/EN 55103-1.

Software
Any function is controlled via a software which also guide the user through any test or measurement. Adaptation of signal strength or measurement graphs are possible at any stage. User defined signals complement the usage for fast and reliable tests. The software is written in LabVIEW which guarantees stable and fast performance on any Microsoft® Windows platform.

Components
MTS-800 consists of 3 independent modules: a signal generator (DC – 250 kHz), a power amplifier (800 W output maximum, DC –1MHz bandwidth) and spectrum analyzer (16 Bit, 1 MSPS sampling rate). All modules can be used as stand-alone units.

Self-calibration
Using an ultra-stable voltage source self-calibration correction values are stored in an internal EEPROM. Any voltage signal or voltage measurement device is calibrated at a self-calibration process automatically in about a minute.

Accessories
Frankonia provides also many different coils and loop sensor which are ideally suited for the described tests. Any additional equipment is ready to use without a need for recalibration. Not only our own equipment can be used with the MTS-800, but also user defined coils. A calibration mode is included in the software to complement the magnetic test system with any further equipment.

 

Further features and possibilities

 

Susceptibility tests with fixed frequencies and test levels or use the ramp function to sweep from start to stop level. Verify the generated field of any radiating coil with loop sensor.

 

Short term generation window for short term magnetic field tests (optional).

 

Scope mode window.

 

Determine the coil factor of an unknown coil

 

Self calibration of the MTS-800

 

Helmholtz Coils
Several Helmholtz coils are available for susceptibility tests. We also offer tri-axial Helmholtz coils which are suitable for MTS-800. To achieve 1000 A/m at 1 kHz, it is absolute necessary to use our Helmholtz coils and an optional compensation board.

 
Coil TypeTechnical specifications
HCST_50/28_TAP (1)Tapped triaxial Helmholtz coil for immunity tests
HCS_50/28_TAP (2)Tapped single axis Helmholtz coil for immunity tests
Max. currentDesigned for the generation of magnetic fields with field strength > 1000 A/m
HCS_125/75_TAPTapped single axis Helmholtz coil for immunity tests according to IEC / EN 55103
 

Loop Sensors / Radiating Loops
For immunity tests we offer radiating loops which are necessary to generate magnetic fields. The required loop sensors for measuring emission can also be ordered.

 
Coil TypeTechnical specifications
RL_120 (3)120 mm radiating loop according to MIL-STD-461
LS_040 (4)Electrostatically shielded loop sensor according to MIL-STD-461
LS_133Electrostatically shielded loop sensor according to MIL-STD-461
RS_133Electrostatically shielded loop sensor according to IEC/EN 55103-1/2
Can be used as radiating loop and loop sensor.
 
 

Coupling Transformer
MIL-STD-461 CS 101 requires a coupling transformer for conducted susceptibility tests. Frankonia has developed a coupling transformer which meets all requirements. Due to direct coupling to voltage mains, the coupling transormer has an additional differential amplifier for common mode rejection of the AC mains. Using the coupling transformer without this amplifier can destroy any measurement instrument due to overvoltage.

Testing equipment acc. to IEC/EN 55103-2
IEN/EN 55103-2 requires certain immunity tests for frequencies from 50 Hz to 10 KHz. The following test equipment fulfills all requirements according to IEC/EN 55103-2, annex B.

Control Panel

The software starts with the generator/amplifier control panel. This window allows basic settings of generator and amplifier.

 

Standard generation window

Open the Magnetic field generation window for susceptibility tests according to predefined standards.

 

Magnetic field continuous generation window

Open the continuous generation window for long term magnetic field test.

 

Example standard file

Edit a predefined standard or create a new one. Load, save and print data.

 

Measurement results

Open the Magnetic field measurement window for spectrum analyzer measurements. Perform a single or continuous measurement. Perform test according to predefined standards.

 
 

Current transducer incl.  correction network

Calibration network

Common  mode test adapter

 

Accessories selecting table

Test equipment MIL-STD 461Recommended ModelCE101CS101CS109RE101RS101
Measurement receiverMTS-800 
Current probeAny commercially available model  
Signal generatorMTS-800
Power amplifierMTS-800  
Data recording deviceMTS-800   
OscilloscopeMTS-800   
Coupling transformerCT_2.5/50 AC•                        •
Isolation transformerIT-6/-16/-20/   
LISNsAny commercially available model•                        •                        •                •
Radiating loop 12cmRL_120    
Loop sensor 4cmLS_040                                                                    •
Loop sensor 13.3cmLS_133    
OhmmeterAny commercially available model
 

Standards

CE101Conducted Emission, Power Leads, 30 Hz to 10 kHz
CS101Conducted Susceptibility, Power Lead, 30 Hz to 150 kHz
CS109Conducted Susceptibility, Structure Current, 60 Hz to 100 kHz
RE101Radiated Emission, Magnetic Field, 30 Hz to 100 kHz
RS101Radiated Susceptibility, Magnetic Field, 30 Hz to 100 kHz
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