OTA
signals transmitted without cables. Also known as: Over The Air
See Also: Wireless, Over the Air, Antenna Measurement
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Large-size Hybrid Reverberation / Anechoic Chamber
F-Series
The F large-size hybrid Reverberation/Anechoic Chamber represents the most versatile OTA test system in the market today. With the same unique test features of their E Series RC counterparts, the F-Series can also test large form-factor devices under test (DUTs) like laptops, large TV sets, solar and trash compactors, drones, fridges or washing and vending machines, among others. With up to 16x16, 8DLCC and DUTs up to 2m and 500 kg including full-body phantoms in a turntable, the F Series also expands the frequency range down to cover 200 MHz up to 40 GHz frequency ranges and the test modes to include EMC, BS, small cell, eNodeB and Virtual Drive Testing over the air (VDT-OTA). In an again unheard-of feature, the F-Series is also reverse-convertible into an Anechoic chamber, allowing Far Field (FF) and Spherical Near Field (SNF) radiation patterns, efficiency and gain measurements and pre-5G testing of antennas and devices. Conversion from RC to AC or vice versa can be performed within half a day.
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External Frontend
FE44S
The R&S®FE44S external frontend can extend the frequency range up to 44 GHz for Rohde&Schwarz signal and spectrum analyzers as well as signal generators. The R&S®FE44S enables signal up and downconversion directly at the device under test (DUT), lowering cable losses, increasing sensitivity and delivering more power at the antenna in an OTA environment. The R&S®FE44S uses a single RF connector to further reduce the number of antennas in over the air testing.
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High Dynamic Receivers
ZRX
converter series with high dynamic range receivers. Typical applications are antenna measurements (OTA) and signal analysis. The ZRX Receivers are used wherever full S-parameters are not required.
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Car-to-X Signal Strength Emulator
Qosmotec Software Solutions GmbH
QPER-C2X is a special adaptation of the signal strength emulator QPER, designed for mobile and Vehicular Ad-hoc Networks (MANet and VANet). Every radio devices in such an infrastructure-less network acts as a sender, receiver, and forwarder (router). Therefore, the ports of the QPER-C2X hardware are fully connected with each other by dynamically controllable attenuators. The system is fully designed for frequencies up to 6 GHz, since wireless communication for Intelligent Transport Systems (ITS) is based on the WLAN standard IEE 802.11p from 5.850 MHz to 5.925 MHz. The connected ITS stations can be either on-board units, as they are built into cars, or road side units that are used by road infrastructure (traffic lights, road work area delimiters, velocity signs). For tests in the lab, radio modules of such ITS stations are each kept in a shielding box that prevents any unwanted radiation over the air.
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Antenna Couplers
Concentric Technology Solutions, Inc.
RF Antenna Couplers help create the ideal environment for shield boxes by providing a consist, stable and reliable environment for repetitive over the air (OTA) tests.
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Medium-size Reverberation Chamber
E-Series
The E medium-size multicavity Reverberation Chamber Series represents that state-of-the-art in reverberation chamber technology. The E-Series can make single measurements, batch tests, protocols or campaign tests for different frequency bands, different technologies and different channel models, running overnight without human intervention. Embedded frequency-, mode-, source- and platform-stirring in a double-shielded set of cavities allow Passive MIMO (Efficiency, Correlation, Diversity Gain, MIMO Capacity and others), Active MIMO OTA (TRP, TIS, TPUT, MTS, CQI, M2TxDT, RSRP, MCL and others) and Time-Domain MIMO (DL/UL TCP/UDP TPUT, RMS DS, STD, PL, CBW, Mute%, eNodeB, VDT-OTA) measurements up to 8x8 and 8DLCC to be performed for antennas and devices up to 50cm and 50kg ranging from 2G to 4G, covering all available cellular and wireless technologies to date, including wearables devices, sound acoustic mute, WLAN and W-IoT testing. There is no RC in the market more advanced than the E-Series.
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Wireless Devices
Schweitzer Engineering Laboratories, Inc.
Wireless devices use radio signals to communicate and pass data over the air, eliminating the need for traditional cabling.
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Rack based antenna test system
R&S®ATS800R CATR
Very compact far-field over-the-air (OTA) test system based on compact antenna test range (CATR) technologyUnrivaled quiet zone size within 0.8 m2 footprintState-of-the-art reflector ensuring a high quiet zone accuracyUnique rack based CATR system supporting over 50 GHzIndirect far-field method (approved by 3GPP for 5G OTA testing)
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Automotive Radar Testers
Rohde & Schwarz provides automotive manufacturers, components suppliers and test houses with innovative, cutting-edge solutions which bring realistic test scenarios from the road to the lab and production line.Our range of solutions include a signal generator-based target simulator, a radome & bumper tester and an anechoic automotive radar test chamber allowing for over-the-air (OTA) testing. These solutions are at the heart of the development of advanced driver assistance systems (ADAS) with its safety-critical features such as emergency braking. Using T&M solutions by Rohde & Schwarz enables a thorough testing of chipsets, sensors and modules at each phase from development and conformance to production.
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RF & Microwave Power Meters
Our RF & microwave power sensors ensure precise and reliable measurements. They provide the highest measurement accuracy and speed, simple operation, technological leadership in thermal, diode and OTA core measurement elements as well as traceability to national standards.
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Millimeter Wave Antenna Testing
If you are involved in antenna or system level design using mmWave or THz frequencies, then you understand the importance of dependable testing equipment. It may be that you are designing passive phase array or that you are designing a mmWave radar sensor system, but when it comes to validation of your design, simulation can only bring you so far. Phased array antennas have to be measured over the air (OTA) to ensure the radiation pattern of your design efficiently conducts energy in the right direction which is where the MilliBox comes in.
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Advanced Reconfigurable Modular OTA RF Test Enclosures, ≥100 DB Isolation, 300 MHz - 90 GHz
dbSAFE ARMOR
The dbSAFE ARMOR series of shielded boxes are cost-effective solutions for OTA testing in the mmWave spectrum. Providing a shielded, fully anechoic test environment, these RF test enclosures ensure stable and repeatable measurements over a wide frequency range (from 300 MHz to 90 GHz).
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Antenna Test Systems and OTA Chambers
With our well-established experience in innovative solutions based on top-quality engineering, Rohde & Schwarz provides you with leading antenna test systems and OTA chambers.
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Compact Anechoic Chambers
If you have mmmwave or THz antenna phased-array that require Over the Air measurements, MilliBox has the equipment and tools that you need. With the help of MilliBox compact anechoic chamber system, you can plot radiation pattern , collect data from those plots, and assess your antenna performance easily and precisely.
