TEMpact GHz TEM-Cell
Contents
1. TEST INSTRUMENTS AND COMPONENTS Antennas RF Power Meter RF Relay Switching Unit TEM Cells Striplines COMB Generators FRANKONIA ael Your Partner for Turney EM Laboratories Page 15 18 19 20 21 22 23 Table of Contents Products Ultra Broadband Antennas type 30MHz 3GHz Multi Channel RF Power Meter type PMS 1084 RF Relay Switching Unit type RSU Open TEM Cells Closed Tem Cells Stripline acc to ISO 11452 5 50 up to 1GHz Stripline acc to ISO 11452 5 90 Version up to 1GHz Parallel Plate Line GHz TEM Cell type E Field Harmonic Comb Generator H Field Harmonic Comb Generator CDN Coupling Decoupling Networks acc to EN IEC 610000 4 6 EM Coupling Clamp acc to EN IEC 610000 4 6 LISN Line Impedance Stabilization Network 200 to 1000A For RF Power Amplifiers and complete test systems please ask for our separate catalogues FRANKONIA Ultra Broadband Antennas Type BTA e 2 to 3GHz e Individual calibration report e Small dimensions 9 Precise manufacturing by means of laser technology e Maxload 1000W FRANKONIA Ultra Broadband Antennas Type BTA strength especially in the field generation The BTA H is equally suitable for emission measurements and susceptibility tests and is therefore the ideal universal antenna for OATS and anechoic chambers BTA M2. 13 FRANKONIA Parallel Plate Line very easy to pivot and to move The dielectric table can be removed An included metallic plate can be placed on the table depending on the requirements of the different standards The parallel plate line can also be used for immunity tests on automotive devices according to the European directive 95 54 56 and on broadcast receivers and associated equipment according to EN 55020 1 dB 10 kHz to 30 MHz 500 W continuous 380 V m 6 500 better than 1 1 9 80 or 100 cm L x W x H 358 x 105 x 153 INTRODUCTION This parallel plate line is specially designed for the immunity test on small and medium size devices It can also be used for specific tests according to the MIL Standards The main advantage of this line is that the equipment under test can be successively easily tested in both polarisations without to be dismounted The line is electrically symmetrical and the impedance is adapted through transformers on both sides The line is Specifications Frequency range Field homogeneity dB Maximum input power Maximum field Line impedance 200 0 Input impedance 500 Wave impedance 377 0 VSWR Connector type 500 Distance between plates Total dimensions Total weight 150 kg The specifications and dimensions are given above as an example Other models are available on request 14 FRANKONIA TEMpact GHz TEM Cell Compact testing system for EMC r
3. 00 DC 1GHz 1GHz 5GHz 5GHz 10GHz 10GHz 12 4GHz VSWR M4 MM 4 415 Isolation gt 90dB gt 80dB gt 70dB gt 70dB Insertion loss 0 0598 lt 0 198 gt 0 208 038 0 Max power input lt 1 00kW lt 0 44kW 0 31kW 0 28kW RF connectors Relays N female Number of operations 10 Minute Operating temperature 4104 4 Max humidity 9076 Cabinet 19 subrack or desktop case Dimensions 450mm x 450mm x 150mm Width x Depth x Height FRANKONIA Open Cells telephones or PCB s In comparison with other closed TEM cells the price is low The field decreases rapidly outside the open TEM cells approx 33 dB at 1 meter and it is therefore possible to use an open TEM cell in ordinary facilities Another very interesting application is the calibration of field probes because the field inside the TEM cell is known with high precision TEM cells are the most precise structures for field calibrations TEM500 TEM1000 TEM3000 500 MHz DC 1 GHz DC 3 GHz 14 7 cm 7 4 cm 2 5 cm kW 750 W 400 W 1 5 kV m 2 6 kV m 5 6 kV m 215 V m 4 70 V m 1400 V m 97 45 54 320 81 16 8 40 18 6 12 kg 3 5 kg 3 kg 5 type 50 50 0 377 0 gt 1 2 1 5 for the TEM3000 INTRODUCTION These open TEM cells tri plate cells are well suited for immunity testing of small objects according to European CE and automotive stan
4. and measurements quantity of relays with 2 or respectively 3 outputs is variable The RSU includes Windows software for easy remote controlled applications However for extensive systems it is recommended to integrate the RSU Windows software into the central computer control software The easy to follow commands for RS 232 and GPIB interfaces are listed in the user manual Definition of the relay assembly RSU X2 X3 Quantity of relays with 2 outputs Quantity of relays with 3 outputs RSU 2223 2 relays with 2 outputs and 2 relays with 3 outputs Description The RSU Relay Switching Unit is applicable for all fields of RF and EMC measurements to switch manual or remote controlled from one input to 2 or 3 outputs Typi cal applications in measuring systems are change over 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 for the instrument to work in manual mode or remote control mode via the RS 232 or GPIB interface The input output connectors of the relays are located on the rear panel of the RSU this also allows for easy cabling in cases when or where the RSU is mounted into a 19 rack A 19 unit can be equipped with a maximum of 4 relays with 2 or 3 outputs The FRANKONIA Technical data Frequency range DCbisl24GHz 0 0 0505 5 5
5. Antenna he most important aspect of the BTA M is the extension of the frequency range to higher frequencies so that even for measurements from 30 MHz to 3000 MHz the time consuming changing of antennas is no longer necessary In this case the antenna has to be somewhat larger but with 106 cm in length it is still much smaller than comparable antennas In practice the BTA M offers considerable advantages both for emission measurements and susceptibility tests The matching of the broadband dipoles to the log periodic structure has been optimized for the whole frequency range he BTA antennas were developed in cooperation with the antenna specialists of TESTCOM Prague By combining their experience gained in decades of antenna construction with our know how in the planning and construction of anechoic chambers and being acquainted with the interaction between antennas and anechoic chambers it was possible to develop a group of antennas which exclude the weak points of conventional broadband antennas in almost every respect BTA H Antenna he BTA H is perhaps the smallest broadband antenna presently available on the market With only 70 cm in length and a weight of 3 0 kg this antenna is optimally suited for the operation on the antenna mast advantage in small anechoic chambers is that the small dimensions of the antenna leave room for an increased testing distance and a larger distance to the absorbers or the condu
6. m 475 V m 1 4 kV m 500350 500470 50 0 7 0 lt 1 2 lt 2 gt 25 dB gt 20 dB gt 20 dB 50 N 50 or SMA 50 approx 8 kg approx 20 kg approx 15 kg INTRODUCTION The closed TEM cells TEMF200 and 500 are specially designed for the immunity tests on automotive devices according to ISO 11452 3 and to SAE J1113 24 The TEMF1000 and TEMF3000 allow immunity tests on small devices and require a low power amplifier Therefore the test installation is much more cheaper compared with an absorber room with antennas The TEM Transverse Electro Magnetic mode is the only mode Cell Type TEMF200 Frequency range DC 200 MHz Height under the plate 30 cm Size w h 130 x 70 x 62 cm Max input power 1 6 kW long term Field with a 25 W amplifier 118 V m Impedance 500550 VSWR lt 1 1 Return loss 25 dB Connector type 500 Weight approx 29 kg can be equipped with a test set up for IC or PCB according to SAE J1752 3 Option signal and power supply filters Other models are available on request FRANKONIA 500 Stripline for Immunity Tests to ISO 11452 5 SR 50 1000 to divide very easily the stripline in 2 parts for the storage or during the transport It is the only stripline on the market able carry out test up to 1 GHz with excellent return loss The standard impedance is 50 Ohm INTRODUCTION This stripline is designed for immunity tests on automotive devices accord
7. the box gives 10 kHz 30 MHz given by the quartz at least 75 dBeeeeV m 1 m 10 kHz or 1 MHz 15 hours 12 V 800 mAh lead acid 9 V plastic fiber HFBR 5 hours 6 160 mA 95 x 70 x 70 mm 0 6 kg FRANKONIA Specifications Frequency range Frequency stability HF level 1 MHz freq Repetition frequency Battery life comb generator Battery type generator Battery type remote control Optic fiber type Charging duration Size with battery Weight with battery 20 COUPLING DECOUPLING NETWORKS acc to IEC EN 61000 4 6 INTRODUCTION Coupling and decoupling networks CDN s are used for immunily tests to conducted disturbances induced by radio frequency fields according to IEC EN 61000 4 6 Guidance for selecting the appropriate CDN is given in the following table Specifications 2 4 M5 2 3 Unscreened supply mains S1 S2 S9 S25 Screened lines T2 TA T Unscreened balanc RJ11 RJA5 Unscreened data lines Please see also our data sheet CIT 10 Compact Immunity Test System acc to IEC EN 61000 4 6 21 FRANKONIA Electromagnetic Coupling Clamp acc to IEC EN 61000 4 6 Yt te ii 4 EM Coupling Clamp Frequency range 0 15 1000MHz Max allowed power 0 15 100MHz 100W max 15min 100 230MHz 100W max 5 min 230 1000MHz 50W max 3min The test level of the immunity t
8. 0 ms Software 27 dBm 500 mW 1 25 50 Ohm RS 232 9 pol Sub D female 2 standard up to 4 option 100 kHz 4000 MHz 60 dBm 20 dBm 1 dB 0 5 dB typical 1 100 ms Software 27 dBm 500 mW PMS 1084 is in the standard version a 2 channel RF Power Meter for the frequency range from 100kHz up to AGHz or from 10kHz to 500 MHz PMS 1084 B The measuring range reaches O0dBm to 20cBm 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 Technical Data PMS 1084 Number of channels Frequency range Measuring range Accuracy Resolution 0 1 dB Averaging times Max input level VSWR 1 15 RF Impedance 50 Ohm Interface PC USB with USB Serial Converter Input N type female connector 482 6 x 172 x 44 3 mm Dimensions L x W x 19 x 6 77 x 1 74 inches 19 inch 1U Weight approx 2500 g Power supply 115 230 V Power cord application software user Accessories included manual LabView driver FRANKONIA RF Relay Switching Unit DC 12 4GHz RSU Assembly alternatively with 1 4 pcs coax relays e Selection between relays with 1 input 2 outputs 1 input 3 outputs e Manual or remote controlled operation e RS 232 and GPIB interface Easy integration into PC controlled test systems Applicable for all fields of RF
9. adiation testing mple unit or d test assemb sting equipment her as Sl ell is delivered eit controlle plete computer h all necessary te The asa com ly wit FRANKONIA 15 TEMpact GHz TEM Cell Functional principle he TEMpact GHz TEM Cell provides defined TEM field conditions from 0 Hz up to the GHz range avoiding at the same time the stimulation of undesired higher modes The configuration of the cell assures a useful area of a constant cross section the TEM field generated in the test volume is therefore not depending on a certain location The pyramid shaped extension which allows to direct the signal injections to the useful area has a minimum opening angle so that an almost ideal plane wave front is generated in the useful area which permits to simulate the real field conditions The characteristic wave impedance of the TEMpact GHz TEM Cell is optimized in view of a desired value of 20 500 1Q so that reflections of the line structure are negligible The termination of the cell is realized by means of a so called hybrid termination whose essential detail consists in a plane terminating resistor The plane resistance of this termination element is designed in a way to assure an adapted termination of the line wave resistance for each cell geometry in the lower frequency range Possible radiation or reflection effects of this plane termination at higher frequencies are avoided by inst
10. alling ferrite absorbers at the septum inner conductor as well as in the auxiliary space at the end of the cell In addition this auxiliary space assures the decoupling between outside area of the cell and useful area This hybrid termination directly provides an effective damping of the higher modes which are stimulated in classic TEM cells and which have a limiting effect to the band width In addition the installation of ferrite absorbers in the useful area permits to avoid almost entirely the resonances of higher wave forms These advantages are confirmed in practice by the respective measuring results The maximum field strength deviation of OdB to 6dB requested by IEC EN 61000 4 3 is easily reached in the specified test volume this allows to perform immunity tests which are fully conforming to standards he TEMpact GHz TEM Cell was developed especi ally to permit EMC radiation testing of smaller EUT equipment under test in a shorter time and at a lower price In addition to the comparatively low purchase price of the cell itself the cost incurred by the necessary measuring equipment too will be reduced Another advantage is the little space required for the cell itself as well as the space saving disposition of all the measuring and testing equipment on the undercarriage of the cell TEMpact be used both for immunity tests conforming to the standard IEC EN 61000 4 3 as well as for pre compliance emissi
11. cting surface resp Thus the coupling effects between absorbers and antenna are reduced which has a positive influence on the field homogeneity and the max reachable field ORRO FRANKONIA Ultra Broadband Antennas Type BTA H Type BTA M Antenna factor Antenna factor i bie ETE muPh hn condo ue coupe cua HUS a eared Sere Fee Demand ple Forward power at 3 0 m measuring distance FRANKONIA Ultra Broadband Antennas BTA M 1 i d 1 BTA M 1 063 x 1 379 x 440 1000 W typ N female BTA H BTA H 700 x 1 289 x 440 1000W typ N female FRANKONIA Technical data Dimensions LxWxH in mm Max input power Connection Multi Channel RF Power Meter PMS 1084 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 61000 4 3 6 and MIL STD 461E It is available for the installation into 19 Racks or as stand alone unit PMS 1084 B 2 standard up to 4 option 10 kHz 500 MHz 50 dBm 27 dBm dB 0 5 dB typical 0 1 dB 1 10
12. dards SAE J1113 25 or for biological experiments The advantage of these TEM cells is that they are open and it is very easy to control the functions of the equipment under test The applications are for instance the immunity testing of watches pagers Cell type TEM220 Frequency range DC 220 MHz Height under plate 33 3 cm Max input power 1 5 kW Maximum field 800 V m Field with a 25 W amplifier 105 V m Dimensions Lx W 180 x 160 x 73 cm Weight 55 kg Field precision Connector Cell impedance Wave impedance VSWR can be equipped with a test set up for IC or PCB according to SAE J1752 3 Option signal and power supply filters Other models are available on request 10 FRANKONIA Closed TEM Cells produced in the cell below the cut off frequency The electric field is vertical and the magnetic field horizontal The wave impedance is 377 The field conditions inside the cell are similar to far field conditions An optional filter box can be placed behind the cell for power and signal lines connections For the automotive tests the recommended minimum power of the amplifier is 100 W TEMF200 and 50 W 500 It is also possible to use the cell for the radiation measurement under certain conditions TEMF500 TEMF1000 TEMF3000 DC 500 MHz DC 1 GHz DC 3 GHz 10 cm 7 4 cm 2 5 cm 60 30 22 45 22 16 15 8 6 cm 1 kW long term 750 W long term 400 W long term 350 V
13. est with the specified values corresponds to a field strength of 100V m Directivity around 1008 f225MHz Dimensions L x W x H 645 x 100 x 110 mm Max cable diameter 20mm Weight 7 5kg Options Calibration set Consisting of 2 pcs Calibration corners 150 50ohms adapter 1 pc Calibration cable 22 FRANKONIA Line Impedance Stabilisation Network 200 to 1000 A connector gives the opportunity to build an external safety circuit The cabinets are easy to move and the connexions are easy to carry out This equipment includes as an option coaxial cables protection devices and a coaxia relay for remote control INTRODUCTION This Line Impedance Stabilisation Network LISN is specially designed for the measurement of mains disturbances on high power equipment according to European standards CE and to MIL STD The continuous current capacity is up to 1000 A A safety switch is installed on the door of the LISN cabinet and an output LISN Type LISN50 200 LISN50 500 LISN50 1000 Continuous Current 4 x 200 A 500 A 1000 A Type V 50 Q 50 pH according to CISPR 16 subcl 11 3 band Voltage 230 400 V option 460 800 V Coupling 3 phases N 1 phase 1 phase Impedance 50 Q 50 pH gt 20 Frequency Range 150 kHz 30 MHz Mains Connector screws M12 Signal Connector N 50 Dimensions 380 x 600 x 350 mm Weight 35 kg 29 kg 50 kg Protection circuits Impedance 500 Frequency Range 0 01 100 MHz Atten
14. for immunity testing see also block diagram Fig 2 Field strength probe Generator _ Amplifier 10 W Field strength measuring equipment signal generator with amplitude modulation Computer Printer power amplifier field strength measuring equipment with probe software for control and documentation PC for system control IEEE bus optionally automized monitoring of the EUT by means of fibre optic system or by multimeter FRANKONIA 949644 TEMpact GHz TEM Cell a measurement receiver does not exist we can also deliver a completely computer controlled test site for emission measurements case of an all inclusive delivery of TEMpact immunity test site and emission measuring site the com plete control software will be installed on one common compuler so that the desired test can be called by simple mouseclick 22 Measurement Computer Printer receiver Fig 4 Lx D x H 3 020mm x 1 080mm 1 900 Lx D x H 750mm x 450mm x 300mm One reason for this is the defined cable layout which is realized by means of a plexiglass holding device beneath the septum An undefined cable layout as can often be seen in other cells would lead to a considerable limitation of the reproducibility as well as of the correctness of the measuring results Due to the very elaborate damping of cavity effects by means of ferrite absorbers the TEM
15. ing to ISO 11452 5 The stripline is fixed on a table and is easy to move The table can be sloped vertically in order to reduce the width It is also possible 0 to 1 GHz 1 kW continous 377 0 50 Q gt better than 1 25 better than 20 dB 500 2 x 0 37 x 0 05 m Lx W x HJ 15 cm over ground plane 90 cm L x W x H 430 x 150 x 105 cm service position 2 215 85 165 cm storage 140 kg 90 version filter box FRANKONIA Specifications Frequency range Max input power Wave impedance Impedance VSWR Return loss Connector type Field homogeneity approx Height of the plate Height of the table Size Weight approx The following options are available 900 Stripline for Immunity Tests acc to ISO 11452 5 SR 90 1000 INTRODUCTION This stripline is designed for immunity tests on automotive equipment It is the only stripline on the market able to devices according to ISO 11452 5 with an impedance of carry out test up to 1 GHz with an excellent return loss 90 Ohm The stripline is easy to move and it is possible An impedance adapter 50 90 Ohm is available as an to pivot the table in order to reduce the width of the option Specifications lt 200 W continous Max input power Impedance 90 0 6 0 hon loss 12 dB up to GHz Height of over ground plane Size Lx W x H 350 x 90 x 95 cm The B 50 90 Ohm filter box other height under plate
16. on measurements in the frequency range from DC to 2 GHz Due to this an immediate and reliable survey regarding the compliance with EMC regulations can be obtained already in the development phase of electronic equipment Technical construction EMpact is TEM cell with a closed outer conductor and an inner conductor septum corresponding to the well tested principle after Crawford To avoid cavity effects which arise in the standard Crawford cells from approx 200 MHz onwards the TEMpact is partially equipped with ferrite absorbers so that the cell can be used without any problems for the frequency range from DC to 2 GHz TEM conditions transversal electro magnetic field are given if both an electric and a magnetic field are generated which are perpendicular in their propagation This case is also called far field condition This requirement can be fulfilled with the TEMpact due to the configuration closed outer conductor inner conductor as can be seen from Fig 1 Elektric field Probe Magnetic field PS pM Fig T Inner conductor Septum Outer conductor The electric field is propagating from the inner conductor in direction to the outer conductor Resulting from the cur rent flow feeding point inner conductor terminating resistor a magnetic field is generated around the inner conductor It has to be pointed out that this requirement is fulfilled not by all constructi
17. ons offered on the market 16 FRANKONIA TEMpact GHz TEM Cell The control software assures a constant field strength in the test volume over the whole frequency range To permit this it is necessary to establish a relation between generator output voltage and the desired field strength For this purpose a reference run is performed with empty TEMpact during which the output voltage of the signal generator required for the respective field strength will be determined and stored for each frequency The values thus determined are available as reference file for all future testings Due to the symmetrical construction of the cell the field strength may be recorded permanently during testing with the reference file by means of the probe installed in the upper half of the cell without influencing the field in the test volume unacceptably This permits on the one hand to verify if field strength is really available during automatic testing and on the other hand to perform tests manually Fig 3 shows which amplifier output voltage is necessary for a field strength of 10V m depending on the respective frequency Power measurement at the TEMpact cell for 10V m unmodulated Power W 0 BUA 80 110 150 200 260 360 480 650 870 ENT SS ission measurements n the international standardization TEM cells or strip lines are not officially permitted as alternative measuring method for emi
18. pact will not require the so called correlation software which is frequently offered in order to correct resonances of the cell by calculation emission measurements the TEMpact is used as receiving equipment and just as in the tests with antennas connected via RF cable with N connectors to any measurement receiver conforming to CISPR 16 or to a spectrum analyser Testing may then be started immediately The test setup can be seen from the block diagram Fig 4 Technical Data External dimensions Test volume Return loss Typical value for f 1GHz 20dB Return loss Maximum value for f 1GHz gt 18dB Maximum field strength deviation in the test volume with constant input power for f 1GHz 4dB to 6dB Maximum field strength deviation in the test volume with regulated input power conforming to IEC EN 61000 4 3 for f 2GHz OdB to 8 Required amplifier output power for field strengths of 10V m at 80 AM 10 Watt FRANKONIA 18 Harmonic Comb Generator E Field preamplifiers receiver quasi peak detector etc The equipment is also designed to measure the shielding effectiveness of little boxes and cubicles The repetition frequency can be changed with a remote control optic fibre in order to increase the dynamic in level and INTRODUCTION This harmonic comb generator is designed for the periodical control of the radiated field measurement site With this equipment i
19. ssion measurements Consequently they cannot replace the final acceptance measurement conforming to standards on an open area test site or in an anechoic chamber The high quality of the TEMpact however permits already during the development phase to perform emission measurements which are very reliable and absolutely reproducible so that the effort caused by the use of a test assembly conforming to the standards effort of time and hiring charges can be reduced to a minimum Comparison measurements with open area test sites conforming to standards have proved that an EUT can be prepared optimally with TEMpact for the acceptance measurement 17 Immunity tests in accordance with IEC EN 61000 4 3 a to IEC EN 61000 4 3 the alternative use of TEM cells instead of anechoic chambers is allowed for immunity testing in the frequency range from 80 MHz to 2000 MHz provided that a sufficient homogenous field maximum field strength deviation OdB to 6dB in relation to the size of the EUT is assured Another criterion is the suitability of the cell for the whole relevant frequency range up to 2 GHz The TEMpact fulfills both of these requirements If desired we deliver the TEMpact GHz TEM Cells including all the necessary measuring and testing equipment completely installed and ready for operation As far as equipment is already existing it may be integrated in the system The following components are required
20. t is possible to control the reproducibility of the whole measurement system from the antenna to the spectrum analyser including the cabling frequency Specifications Repetition frequency 10 MHz or 50 MHz Frequency range 10 MHz 5 GHz Given by the quartz 100 ppm mainly vertical up to 87 dBe e eeV m 6 10 m Frequency stability 10 75 C Level stability 10 50 C Level stability 7 13Vdc Radiated field polarisation RF Level 50 MHz repetition 0 25dB 0 02dB at least 55 dBeeeeV m 10 m 15 hours 10 MHz 8 hours 50 MHz 6LR61 9 V Plastic fibre HFBR 114 x 72 x 38 mm without antenna Battery life generator Battery type Optic fibre type Size with battery 114 x 72 x 130 mm with antenna 19 Weight with battery 180 g FRANKONIA Generator H Field Harmonic Comb directly the shielding effectiveness of the box The equipment contains a pulse generator with a repetition frequency control an antenna an optic fiber and a remote control The equipment has a rugged and small metal case and is supplied with rechargeable batteries INTRODUCTION This harmonic comb generator is designed to measure the shielding effectiveness of little boxes Due the very small size of the generator and of the antenna in option very small antennas it is possible to place it directly in the box and to measure the radiation outside The comparison between the measurement with and without
21. uation 10 or 20 dB Input Level lt 37 lt 12 Other models are available on request V 50 5 pH 100 1000 A or high voltage versions 23 FRANKONIA 55285 iz Frankonia EMV Mess ems GmbH DaimlerstrafSe 17 91301 Forchheim Tel 49 0 91 91 73 666 0 Fax 49 0 91 91 73 666 20 FRANKONIA 0 Your Partner for Turney EMC Laboratories
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