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Instrument tour

R&S

QAR50

User Manual 1179.4992.02 ─ 02

Instrument tour

The R&S

QAR50 is a millimeter wave imaging system operating in the frequency band

of automotive radar sensors. With its support of spatially resolved reflection and trans-
mission loss measurements, the R&S

QAR50 provides an intuitive and powerful way to

evaluate how radomes and bumpers influence the radar performance.

The R&S

QAR50 contains the measuring electronics like transmitting and receiving

antennas and a PC with dedicated software to operate and control the measurements.

The meanings of the labels on the product are described in

"Meaning of safety labels"

on page 7.

Additional equipment required to run measurements

●

(Touchscreen) monitor

●

Keyboard

●

Mouse

Instrument variants

The R&S

QAR50 is available in two variants.

●

Variant 02: The antennas on the antenna clusters have a vertical polarization.

●

Variant 03: The antennas on the antenna clusters have a horizontal polarization.

5.1

System overview

The visible part of the R&S

QAR50 system consists of several elements that you can

either interact with or that are required for measurement applications.

System overview

Содержание QAR50

Страница 1: ...R S QAR50 Radome Tester User Manual 1179499202 Version 02 Ýaê2 ...

Страница 2: ... 1343 0082 02 2022 Rohde Schwarz GmbH Co KG Muehldorfstr 15 81671 Muenchen Germany Phone 49 89 41 29 0 Email info rohde schwarz com Internet www rohde schwarz com Subject to change data without tolerance limits is not binding R S is a registered trademark of Rohde Schwarz GmbH Co KG Trade names are trademarks of the owners 1179 4992 02 Version 02 R S QAR50 Throughout this manual products from Rohd...

Страница 3: ...ecking 11 4 3 Installing the R S QAR50 14 4 4 Considerations for test setup 19 4 5 Connecting the R S QAR50 20 4 6 Switching on or off 21 4 7 Operating system 21 5 Instrument tour 23 5 1 System overview 23 5 1 1 Connector board 24 5 1 2 Antenna cluster 25 5 1 3 Absorbers 25 5 1 4 Mounting rail for the verification kit 25 5 1 5 Calibration sphere 25 5 1 6 Supporting feet 26 5 1 7 Mounting holes 26 ...

Страница 4: ...sion measurement 39 8 2 3 Phase measurement 40 8 3 Result displays 41 9 Configuration 46 10 Data management 49 11 System verification 51 12 Remote control 55 12 1 Remote control interface and protocol 55 12 2 Remote control commands 57 12 3 Remote control examples 62 13 Maintenance storage and disposal 63 13 1 Cleaning 63 13 2 Storage 63 13 3 Disposal 63 14 Contacting customer support 65 15 Transp...

Страница 5: ... from the Rohde Schwarz group of companies are manufactured according to the highest technical standards To use the products safely follow the instructions provided here and in the product documentation Keep the product documentation nearby and offer it to other users Use the product only for its intended use and within its performance limits Intended use and limits are described in the product do...

Страница 6: ...ss otherwise specified you can operate the product up to an altitude of 2000 m above sea level The product is suitable for pollution degree 2 environments where nonconductive contamination can occur For more information on environmental condi tions such as ambient temperature and humidity see the data sheet Connecting to power The product is an overvoltage category II product Connect the product t...

Страница 7: ...ng or carrying the product Carrying the product requires a suffi cient number of persons or transport equipment Electrical hazard Indicates live parts Risk of electric shock fire personal injury or even death Hot surface Do not touch Risk of skin burns Risk of fire Protective conductor terminal Connect this terminal to a grounded external conductor or to protective ground This connec tion protects...

Страница 8: ...cur if you do not follow the safety precautions WARNING Potentially hazardous situation Could result in death or serious injury if not avoided CAUTION Potentially hazardous situation Could result in minor or moderate injury if not avoided NOTICE Potential risks of damage Could result in damage to the supported product or to other property 1 4 Korea certification class A 이 기기는 업무용 A급 전자파 적합기기로서 판매자...

Страница 9: ...rmat is available in the measurement application Safety instructions Contains safety instructions operating conditions and further important information The printed safety instructions are part of the delivery Data sheet and brochure The data sheet contains the technical specifications of the R S QAR50 its options and accessories The brochure provides an overview of the R S QAR50 and its character...

Страница 10: ...pers combined with spatially resolved measurements to evaluate the homogeneity of design emblems Its innova tive hardware concept enables impressively fast measurement times whereas the modular software concept allows adaptation to your particular requirements Measurements Precise reflection measurements from both sides for two frequency bands Frequency resolved reflection and transmission loss me...

Страница 11: ...ility classes The electromagnetic compatibility EMC class indicates where you can operate the product The EMC class of the product is given in the data sheet under General data Class B equipment is suitable for use in Residential environments Environments that are directly connected to a low voltage supply network that supplies residential buildings Class A equipment is intended for use in industr...

Страница 12: ...0 out of the transport box Use a crane or similar lifting device to lift the R S QAR50 out of its transport box 1 Unpack the R S QAR50 as described in Chapter 4 2 Unpacking and checking on page 11 Upon delivery the R S QAR50 has four eye bolts attached to mounting holes on top of the R S QAR50 The eye bolts serve as lifting points Use these bolts to attach appropriate lifting equipment We recommen...

Страница 13: ...four eye bolts Mount the harness legs at a maximum angle of 45 per eye bolt 45 Figure 4 2 Eye bolt load limit 4 Move the R S QAR50 carefully to its operating site and put it firmly onto the ground 5 Remove the lifting equipment 6 Remove the eye bolts from the mounting holes 7 Proceed with the installation as described in Chapter 4 3 Installing the R S QAR50 on page 14 8 Retain the original packing...

Страница 14: ... wrench 1x size 5 and 1 x size 6 Other required tools for installation Open ended wrench size 19 Spirit level Setting up the R S QAR50 You can set up the R S QAR50 in two different ways lying on its long side lying posi tion or standing upright on one of its short sides upright position By default the R S QAR50 is designed to stand on a pair of feet that are part of the delivery For the upright po...

Страница 15: ...s and washers are part of the delivery The supporting feet are bent at their ends to make the R S QAR50 more stable Make sure to align the feet correctly with the bent parts facing away from the ends of the main body Figure 4 4 Correct alignment of the supporting feet After you have unpacked the R S QAR50 it usually rests in lying position on the floor The way to attach the feet depends on the way...

Страница 16: ...s follows to attach the supporting feet a Tilt the R S QAR50 by 90 to an upright position make sure that the side with the connector board is on the bottom Figure 4 5 Tilting the R S QAR50 into an upright position b Screw the two feet to the mounting holes indicated in Figure 4 6 with an Allen wrench The screws and wrench are part of the delivery M8X45 Put the washers between screw heads and feet ...

Страница 17: ...ctor board a Screw the two feet to the mounting holes indicated in Figure 4 8 with an Allen wrench The screws and wrench are part of the delivery M8X45 Put the washers between screw heads and feet Figure 4 8 Attaching the supporting feet for upright position b Screw in the caps of the mounting holes M8X16 screws The caps are part of the delivery c Tilt the R S QAR50 by 90 to an upright position ma...

Страница 18: ...k of physical injury caused by heavy items See Lifting carrying and installing the product on page 5 The product is heavy Moving the R S QAR50 safely is only possible with appropri ate lifting equipment like a crane and a suitable lifting harness like a four leg rope Commission personnel that is qualified to safely attach the R S QAR50 to the lifting equipment and to operate the lifting equipment ...

Страница 19: ...12 4 Carefully move the R S QAR50 to its new location 5 Remove the lifting equipment from the R S QAR50 6 Remove the eye bolts from the mounting holes 7 Screw the caps of the mounting holes back in M8X16 screws 4 4 Considerations for test setup Integration of the R S QAR50 at the workplace The R S QAR50 has several edges that are required by its functionality To avoid physical injuries like head l...

Страница 20: ...itors with a light current extension cable Note We recommend using a monitor with a resolution of at least 1920 x 1080 Lower resolutions can lead to an incorrect display of the measurement data 2 Connect a keyboard and a mouse to two of the USB ports 3 Optional Establish a connection to your LAN via the LAN interface Note Always connect all devices before connecting the R S QAR50 to the mains supp...

Страница 21: ...orange Disconnecting from power The product is in the standby state 1 NOTICE Risk of data loss If you disconnect the product from power when it is in the ready state you can lose settings and data Shut it down first Set the switch on the power supply to position 0 The LED of the Power key is switched off 2 Disconnect the product from the power source 4 7 Operating system The R S QAR50 contains a M...

Страница 22: ...ecommended that you install anti virus software on the instru ment Rohde Schwarz does NOT recommend running anti virus software in the background on access mode on Windows based instruments due to potentially degrading instrument performance However Rohde Schwarz does recommend run ning it during non critical hours For details and recommendations see the following Rohde Schwarz white paper 1EF96 M...

Страница 23: ...ng antennas and a PC with dedicated software to operate and control the measurements The meanings of the labels on the product are described in Meaning of safety labels on page 7 Additional equipment required to run measurements Touchscreen monitor Keyboard Mouse Instrument variants The R S QAR50 is available in two variants Variant 02 The antennas on the antenna clusters have a vertical polarizat...

Страница 24: ...nnector board 4 Verification kit mounting rail 5 Calibration sphere 6 Antenna cluster 1 7 Antenna cluster 2 8 Absorbers 5 1 1 Connector board Number of connector boards 1 Function The connector board provides various interfaces for external applications For more information about available connectors see Chapter 5 2 Connectors and labels on page 26 System overview ...

Страница 25: ...the other side For better orientation the cluster numbers are printed on the corresponding cluster 5 1 3 Absorbers Number of absorber sheets 5 Function The absorber sheets on the inside of the R S QAR50 eliminate electromag netic interferences that would otherwise distort the reflection and transmission mea surements 5 1 4 Mounting rail for the verification kit Number of mounting rails 2 one on ea...

Страница 26: ...es on the top of each of the side bodies Function These mounting holes provide a means to mount lifting equipment to the R S QAR50 4 x mounting holes on the outer side of each of the side bodies Function These mounting holes provide a means to mount the supporting feet or lifting equipment to the R S QAR50 4 x mounting holes on the bottom of the main body Function These mounting holes a means to m...

Страница 27: ... AC mains supply You can connect the R S QAR50 to networks with different voltage levels see datasheet for the supported voltage range The power supply automatically adapts itself to the voltage level of the power source The power cord necessary to connect the panel to the power supply is part of the deliv ery with country specific plug For more information about using the AC power supply safely s...

Страница 28: ...5 2 3 LAN interface Connector type RJ45 Function LAN interface to connect the R S QAR50 to a local network and for remote control via SCPI or OPC Figure 5 5 LAN interface 5 2 4 USB ports Connector type USB 3 0 type A Number of ports 4 Function USB ports for various uses Connection of a keyboard to operate the R S QAR50 Connection of a mouse to operate the R S QAR50 Connection of a memory stick for...

Страница 29: ...screen or monitor that you can use to control the R S QAR50 and view the measurement results Figure 5 7 DisplayPort connector 5 2 6 Device ID The unique device identifier is provided as a barcode sticker on the connector board on the side of the R S QAR50 It consists of the device order number the serial number and a checksum Example 1343 0099K02 123456 aa Connectors and labels ...

Страница 30: ...tion of the clusters The position of the R S QAR50 lying or upright Note that the verification process is the same for all test setups Cluster polarization The R S QAR50 is available in two variants One variant that has vertically polarized clusters order no 1343 0099K02 and one variant that has horizontally polarized clus ters order no 1343 0099K03 The variant you need depends on the DUT that you...

Страница 31: ...z logo The resulting image should show the logo the right way around Regardless of the position of the R S QAR50 the center of the logo should be aligned with the center of the clusters The plate with the logo is thin so the distance from each cluster is about 0 5 m Thicker DUTs might require a different distance to the clusters whatever the case make sure that the distance from both clusters is t...

Страница 32: ... 02 Figure 6 3 Example DUT position for a lying R S QAR50 For the upright position position the logo like this Figure 6 4 Example DUT position for an upright R S QAR50 Both DUT positions result in a millimeter wave image with the correct orientation ...

Страница 33: ...Test setup R S QAR50 33 User Manual 1179 4992 02 02 Figure 6 5 Example Millimeter wave image of the logo ...

Страница 34: ...on 8 Cluster temperature 9 Measurement preview 10 Location of measurement result data 11 System messages Menu bar Contains various functions to configure the R S QAR50 and the measurement For more information see Chapter 9 Configuration on page 46 and Chapter 8 Measurements and result displays on page 36 Measurement description Contains a short description of the measurement scenario This descript...

Страница 35: ...T characteristics in a numerical result table For more information see Chapter 8 Measurements and result displays on page 36 Measurement duration Shows the time that the measurement took to finish Cluster temperature Shows the temperature of the clusters Measurement preview Shows a preview image of the measurements that you have performed for the DUT If no preview is available the preview image is...

Страница 36: ... that provide a baseline to which other mea surements are compared Reflection and transmission measurements must be normalized separately by two sep arate measurements It is not necessary to normalize every measurement We recommend normalizing the measurement regularly Refer to the datasheet for more information about recommen ded normalization intervals In addition the software shows a message if...

Страница 37: ...easurement normalization is a free space measure ment and requires no additional devices However make sure that the area between the clusters is free of obstacles A free space measurements represents a DUT with 0 attenuation 1 Select Normalize Transmission to initiate the normalization When the normalization measurement is done the R S QAR50 saves the correc tion data The R S QAR50 corrects all su...

Страница 38: ... the DUT d Both clusters measure the level characteristics of the reflected or transmitted signal 5 Analyze the measurement results using the result displays Reflection measurement 38 Transmission measurement 39 Phase measurement 40 8 2 1 Reflection measurement The reflection measurement determines the percentage of energy that is being reflec ted by the DUT over a certain frequency range used by ...

Страница 39: ...e distributed transmit and receive antennas in a coherent operation The resulting millimeter wave image diagram and numerical results allow for an intuitive evaluation of the DUTs reflection behavior For more information about the result display available for the reflection measurement see Chapter 8 3 Result displays on page 41 8 2 2 Transmission measurement The stimulus signal is split in a refle...

Страница 40: ...ction and transmission characteristics the phase characteristics of the DUT are also of interest When a stimulus signal hits the DUT the DUT changes the phase characteristics of a signal by a certain amount depending on its thickness and material For the phase characteristics both clusters send a signal that passes through the DUT The opposite cluster measures the phase of the received signal The ...

Страница 41: ... of the DUT and its character istics The image is available for all measurements reflection transmission and phase and both evaluated frequency bands You can select the measurement whose image you want to evaluate in more detail from the Preview pane below the image R x Band y Shows the results of the reflection measurement of cluster x x 1 or 2 in the frequency band y y 1 or 2 Tx Att Band y Shows...

Страница 42: ...reflection measurements the image shows the reflectivity in dB Each color shade corresponds to a certain reflectivity value For transmission measurements the image shows the transmission attenuation in dB Each color shade corresponds to a certain attenuation value A color map next to the image shows the levels that correspond to each shade of color All images show the perspective as seen from clus...

Страница 43: ...able Measuring a homogenous flat highly reflective DUT usually results in a Gaussian distribution of reflection values due to the aperture weights of the antenna array The evaluated values are therefore concentrated to a single area in the image max reflection 3 dB threshold value range for mean reflection Figure 8 5 Mean reflection on a homogenous DUT For inhomogeneous DUTs the distribution can b...

Страница 44: ...ote you can change the scale of the x and y axis using a mouse The default value is restored after a new measurement You can also use a mouse to determine the measured values for each pixel of the trace The blue areas in the diagram indicate the two radar bands from 76 GHz to 77 GHz dark blue and 76 GHz to 81 GHz light blue The red dotted lines indicate the trace minimum The minimum and maximum va...

Страница 45: ...are indicated by a black line in the milli meter wave image The table contains the following results Mean reflection for cluster 1 and 2 and frequency bands 1 and 2 The mean reflection indicates the radar transparency of the DUT The lower the mean reflection the better the radar transparency of the DUT A higher mean reflection results in beam refraction increased transmission loss and standing wav...

Страница 46: ...to the upright position For details about installing the R S QAR50 in the different positions see Chap ter 4 3 Installing the R S QAR50 on page 14 Defining the size and position of the evaluation window The evaluation window is the part of the millimeter wave image that the R S QAR50 uses to calculate the numerical results In the millimeter wave image itself the evaluation window is indicated by a...

Страница 47: ...2 to measure the DUT in the frequency band from 76 GHz to 81 GHz Selecting the color scheme of the millimeter wave image You can select one of several color schemes for the millimeter wave image 1 Select Options Settings 2 Select one of the color schemes from the Colormap dropdown menu Grey Distribution of level values over grey colors Jet Distribution of level values over the complete color range...

Страница 48: ...ly phase value within that range get different shades of colors in the millimeter wave image Phase values outside that range are treated as the same phase value and have the same color in the image For example if the mean phase 20 a phase range 30 means that only phase differences between 50 and 10 are resolved by different colors in the millimeter wave image ...

Страница 49: ...ct the data you want to save from the Saving Result dropdown menu Statistics Exports the numerical results from the numerical results table Statistics results and images Exports all measurement results numerical results trace data and 2D imaging data and the images Statistics results images and volume Exports all measurement results images and the raw 3D imaging data Exporting the raw 3D takes a f...

Страница 50: ...2 02 Image of the measurements millimeter wave image and frequency response trace yyyy mm dd hh mm ss _results mat Contains the raw 2D imaging data and the trace data for the result diagram yyyy mm dd hh mm ss _volume mat Contains the raw 3D imaging data ...

Страница 51: ...alues a77 one way mean attenuation in the frequency range from 76 GHz to 77 GHz a81 one way mean attenuation in the frequency range from 76 GHz to 81 GHz r77 mean reflection in the frequency range from 76 GHz to 77 GHz r81 mean reflection in the frequency range from 76 GHz to 81 GHz The process of the verification is independent of the position of the R S QAR50 lying or upright It works the same i...

Страница 52: ... phase characteristics the verification process consists of five consecutive measurements The verification objects are labeled A to E 1 NOTICE Handling the verification objects Wear the gloves that are part of the delivery when you handle the verification plates Store the verification plates in the bag they were delivered in Keep the verification plates clean and without fingerprints Do not scratc...

Страница 53: ...o initiate a free space measurement The resulting transmission attenuation should be at approximately 0 dB 3 Verify the reflection and transmission measurement a Put the glass ceramic plate labeled A into the frame b Initiate a measurement c Remove the plastic plate from the frame d Do the same for the other two plastic plates labeled B plastic and C plas tic After each measurement check the mean ...

Страница 54: ...ication plates The sticker shows the reflection characteristics of the plate and the deviation the result may have 4 Optional for phase measurements Verify the phase measurement a Put the transparent plastic plate labeled D into the frame b Initiate a measurement After the measurement check the phase results in the millimeter wave image Phase steps should be clearly visible in the image ...

Страница 55: ...ard can be operated with the following interfaces 10 Mbit s Ethernet IEEE 802 3 100 Mbit s Ethernet IEEE 802 3u 1Gbit s Ethernet IEEE 802 3ab For remote control via a network the PC and the instrument must be connected via the LAN interface to a common network with TCP IP network protocol They are connected using a commercial RJ45 cable shielded or unshielded twisted pair category 5 The TCP IP net...

Страница 56: ...g An appropriately defined VISA alias short name For more information about VISA refer to the VISA user documentation VXI 11 protocol The VXI 11 standard is based on the open network computing remote procedure call ONC RPC protocol which in turn relies on TCP IP at the network transport layer The TCP IP network protocol and the associated network services are preconfigured TCP IP ensures connectio...

Страница 57: ...nt EVALuation WINDow 58 MEASurement LOAD 58 MEASurement NORMalize REFLection REQuired 58 MEASurement NORMalize REFLection STARt 59 MEASurement NORMalize TRANsmission REQuired 59 MEASurement NORMalize TRANsmission STARt 59 MEASurement RESult 59 MEASurement RESult DIRectory 60 MEASurement RESult SAVE AUTO 60 MEASurement RESult SAVE WHAT 60 MEASurement SAVE 60 MEASurement STARt 61 SYSTem EXIT 61 SYST...

Страница 58: ... the evaluation window in mm Range 1 to 100 YSize Length of the vertical side of the evaluation window in mm Range 1 to 100 Example See Chapter 12 3 Remote control examples on page 62 Usage Setting only MEASurement LOAD Directory Restores previously recorded measurement data The restored data depends on what was saved MEASurement RESult SAVE WHAT Setting parameters Directory String containing the ...

Страница 59: ...Queries if the transmission measurement has been normalized Return values State 1 0 If the result is 1 normalize the measurement with MEASurement NORMalize TRANsmission STARt If the result is 0 the measurement is already normlized You can proceed with the actual measurement Example See Chapter 12 3 Remote control examples on page 62 Usage Query only MEASurement NORMalize TRANsmission STARt Initiat...

Страница 60: ...See Chapter 12 3 Remote control examples on page 62 MEASurement RESult SAVE WHAT Data Selects the data that is stored in a dataset Parameters Data 0 Saves numerical results 1 Saves all results and images 2 Saves all results images and 3D data RST 1 Example See Chapter 12 3 Remote control examples on page 62 MEASurement SAVE Description Queries the location of the results of a specific measurement ...

Страница 61: ...ST EXIT Usage Event SYSTem REBoot Reboots the system Rebooting the system automatically closes the SCPI session If you want to continue remote controlling the system after the reboot you have to re establish the SCPI ses sion after the reboot with GTR Example Reboot system SYST REB Usage Event SYSTem STATus CODE Queires the current system status Return values StatusCode 0 System ready for operatio...

Страница 62: ...WHAT 1 MEAS RES DIR c qar50 mymeasurements Run measurement MEAS NORM REFL REQ If result 1 normalize reflection measurement MEAS NORM REFL STAR MEAS NORM TRAN REQ If result 1 normalize transmission measurement MEAS NORM TRAN STAR MEAS STAR MEAS RES returns e g reflection S11 mean_Band1 0 015746 mean_Band2 0 020094 fResponse_mean_Band1 0 009148 fResponse_mean_Band2 0 009332 fResponse_minimum_value 0...

Страница 63: ...Clean the frame and rear side of the R S QAR50 with a lint free duster For stub born dirt you can also wipe the frame and rear side with a damp rag 3 We recommend not to clean the absorbers because they can break easily If the absorbers become too dirty contact Rohde Schwarz service to replace them with new ones Cleaning the verification kit Clean the verification kit with a soft lint free dust cl...

Страница 64: ...sal via the municipal collection points for waste electrical and electronic equipment is not permitted Figure 13 1 Labeling in line with EU directive WEEE Rohde Schwarz has developed a disposal concept for the eco friendly disposal or recycling of waste material As a manufacturer Rohde Schwarz completely fulfills its obligation to take back and dispose of electrical and electronic waste Contact yo...

Страница 65: ...ct contact our customer sup port center A team of highly qualified engineers provides support and works with you to find a solution to your query on any aspect of the operation programming or applica tions of Rohde Schwarz products Contact information Contact our customer support center at www rohde schwarz com support or follow this QR code Figure 14 1 QR code to the Rohde Schwarz support page ...

Страница 66: ...ing material designed for the product If you do not have the original packaging use similar materials that provide the same level of protection Securing When moving the product in a vehicle or using transporting equipment make sure that the product is properly secured Only use items intended for securing objects Transport altitude Unless otherwise specified in the data sheet the maximum transport ...

Страница 67: ...EFLection REQuired 58 MEASurement NORMalize REFLection STARt 59 MEASurement NORMalize TRANsmission REQuired 59 MEASurement NORMalize TRANsmission STARt 59 MEASurement RESult DIRectory 60 MEASurement RESult SAVE AUTO 60 MEASurement RESult SAVE WHAT 60 MEASurement RESult 59 MEASurement SAVE 60 MEASurement STARt 61 SYSTem EXIT 61 SYSTem REBoot 61 SYSTem STATus CODE 61 ...

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