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Propagation
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UMTS / GSM Tester
manufacture a range of items that can be used in UMTS and or GSM propagation testing. These products have been designed against customers requirements.
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Understanding TEM, TE, and TM Waveguide Modes
Energy can propagate through a medium or through what is currently believed to be a vacuum. Propagation modes vary depending upon the type of energy and the nature of the medium.Electromagnetic energy is transmitted in waves. Like sound, it may propagate equally in all directions, the wave energy radiating in concentric shells corresponding to amplitude. Or it may be directional, focused to form a tight beam.View more Understanding TEM, TE, and TM Waveguide Modes
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Satellite and Aerospace Channel Emulation Toolset
S8825A
Satellite, aerospace, and airborne radio link testing with realistic wireless propagation conditions. 5G NTN test support with satellite connection from mobile phones. Interconnecting networks for full end-to-end system testing.
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TDR Structural Health Monitoring
Material Sensing & Instrumentation
MSI Time-Domain-Reflectometry (TDR) Structural-Health Monitoring probes the structural health of a composite part by propagating a fast electrical pulse along a distributed linear sensor which has been fabricated directly in the laminate. The sensor is formed from the native graphite fibers already used in composite manufacture, and constitutes zero defect. Fibers are patterned into a microwave waveguide geometry, or transmission line, and interrogated by a rapid pulse as shown below. Structural faults along the line cause distortions in waveguide geometry, producing reflected pulses similar to radar. Cracking, delamination, disbonds, moisture penetration, marcelling, and strain are all detected by propagation delay, for sensor lengths up to several meters.
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Real-time RF Channels Simulator
RF-LiveSim
Covering a frequency range from 50 to 900 MHz, RF Live Simulator can emulate RF channels propagation modes in real-time for a signal bandwidth from 20 kHz to 20 MHz (gaussian noise, multipath, Doppler and frequency drift tools). RF-LiveSim is a cost effective solution for intense automatic non regression tests at the physical layer level. RF-LiveSim includes 1x RF input and 1x RF output ports, and provides a complete set of channel models, either for fixed or mobile propagation environments. Whatever the standard, any type of receiver can be tested. Thanks to its real-time process, from your basic original signal, RF-LiveSim can perform, for instance, efficient regression testing of LTE solutions to check the good behavior and the limits of your receiver when multipathes, Doppler and Gaussian noise are applied.
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RF Test
RF is short for radio frequency. RF is any frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space. Many wireless technologies are based on RF field propagation. These frequencies make up part of the electromagnetic radiation spectrum.
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Test Services
D-Coax offers RF/Microwave test services for your researchprojects, as well as, production quantities tests. We have available resources and expertise in the high frequency interconnects testing that will benefit your research and products. We will work with you to make your requested tests the most accurate and reliable and we'll complete them in a timely fashion. The following parameters can be characterized or tested to specifications with our test services: Time Domain: Impedance, Impedance profile, rise time, propagation delay, skew and more. Frequency Domain: S21 - Insertion loss, S11- Return loss, S12 - Reverse Insertion loss (port 2 insertion loss), S22 - Reverse Return loss (port 2 return loss) and more.
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Propagation Software
Wireless InSite
Wireless InSite is a suite of ray-tracing models and high-fidelity EM solvers for the analysis of site-specific radio propagation and wireless communication systems. The software provides efficient and accurate predictions of EM propagation and communication channel characteristics in complex urban, indoor, rural and mixed path environments.
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High Speed Comparators (<100ns Propagation Delay)
Analog Devices high speed comparators feature <100 ns propagation delay and are a versatile and easy to use solution for a range of applications. Owing to our proprietary CB and XFCB fabrication processes, our comparators such as the AD790 possess a fast response time with outstanding input voltage resolution.
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TEM Cells
Transverse Electro Magnetic (TEM) cell or Crawford cell (named after its inventor) is used to generate accurate electromagnetic waves over a wide frequency range: DC (0 Hz) to GHz., EM waves generated in the cell propagate in transverse mode and have the same characteristics as a plane wave. It can be used to calibrate E-field broadband probes for testing radiated E-field immunity as well as for measuring radiated emission from a product with a spectrum analyzer/EMI receiver.TEM cell generates a consistent electromagnetic field for testing small RF devices such as wireless pagers, receivers, portable phones, etc.
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Wideband Radio Communication Tester
CMW500
The R&S®CMW500 wideband radio communication tester is the universal test platform for RF integration and protocol development. It is available as the R&S®CMW500 callbox and the R&S®CMW500 protocol tester. The R&S®CMW500 includes a fully integrated end-to-end data solution that permits comprehensive IP throughput and quality measurements. Thanks to the internal fading simulator, it is easy to perform tests under realistic propagation conditions.
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Fatigue Test and Analyzer
Fatigue Testing and AnalysisFatigue is the progressive and localized structural damage that occurs when a material is subjected to cyclic loading. Continued cycling of high-stress concentrations may eventually cause a crack which propagates and results in leakages.
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Radar Level Gauge
HRRD730 Series
HighReach Measuring & Controlling System Co.,Ltd
At The Radar Level gauge Antenna emits and Narrows at The Microwave Pulse. This Pulse propagates in Space AT at The Speed of Light. The When IT Encounters at The Surface of at The the Measured Medium, Part of the ITS Energy IS the REFLECTED the Back and Received by at The Same, Antenna. At The Time interval The Between the transmitted pulse and the received pulse is proportional to the distance from the antenna to the surface of the measured medium.Because the electromagnetic wave propagation speed is extremely high, the time interval between the transmitted pulse and the received pulse is very small (on the order of nanoseconds). It is difficult to confirm. The 90X series 26G radar level gauge uses a special demodulation technology To accurately identify the transmitted pulse and the time interval of the pulse is received to further calculate the distance of the antenna from the surface of the measured medium.
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Integrated Modular Electromagnetic Modeling Suite
EM.Cube
EM.Cube® is an industry-recognized simulation suite for electromagnetic modeling of RF system engineering problems. It features several distinct simulation engines that can solve a wide range of modeling problems such as electromagnetic radiation, scattering, wave propagation in various media, coupling, interference, signal integrity, field interactions with biological systems, etc. Using EM.Cube, you can solve problems of different sizes and length scales, varying from a few microns in MEMS devices to several miles in large urban propagation scenes.
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Circulators
The most common application of a circulator is as a duplexer, allowing the transmitter and receiver in a radio or radar unit to share a common antenna. Energy is transferred from the RF Source to the antenna during transmit, and from the antenna to the receiver during the receive cycle. In each case the circulator functions to isolate the inactive port from the propagated signal. Most importantly, the transmitter output is not passed to the receiver input, preventing the high transmitter power from damaging the sensitive receiver input circuits.
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Time Domain Reflectometer / TDR
For testing cables and interconnects, we offer the ideal tool: A time domain reflectometer (TDR). Time domain reflectometry/transmission can be used to test network return loss (S11), propagation loss (S21), and crosstalk.Moreover, it can provide the impedance profile of an electrical channel. MultiLane supplies semi-automated solutions for the testing of direct-attach cables and TIAs.
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Optical VSF Sensors
The optical Volume Scattering Function(VSF) is an ‘inherent optical property’ of water that is used by optical oceanographers to predict light propagation, image degradation, remote sensed ocean color, biological environment etc. in water.
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Mobile Cable Fault Location System
BAUR Syscompact 4000
BAUR Prüf- und Messtechnik GmbH
Fault location with Syscompact 4000. The Syscompact 4000 is a compact, fully enclosed fault location system for pre-location and pinpointing of high-resistive, low-resistive and intermittent faults on low- and medium-voltage cables. Easy operation and the use of latest fault location methods enable fast and safe fault location.* Location of low-resistive, high-resistive and intermittent cable faults* Efficient cable fault pre-location methods* Pinpointing according to the noise location method or acoustic propagation time measurement* (with Universal Locator and ground microphone)* Sheath fault location according to the step voltage method (with Universal Locator and two measurement probes)* Easy to handle
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Ground EMI Filters
High-frequency signals on ground is never good news - it interferes with normal operation of equipment and creates electrical overstress (EOS). However it is easy to block propagation of EMI on ground by installing highly-effective ground EMI filtes in ground lines. Our unique patent-pending ground EMI filters provide very low impedance for DC and mains' power while effectively blocking propagation of high-frequency currents throughout facility or equipment ground. Ground filters meet safety standards, as well as ANSI/ESD S6.1 and ANSI/ESD S20.20.
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Air Interface Emulator
Becker Nachrichtentechnik GmbH
With help of air interface emulators radio field propagations can be emulated reproduceable in laboratory environments. For different applications like cellular, wireless networks or broadcast several types of devices are available.
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Microwave TV Transmitters for Radio Amateurs
Is the transmission of broadcast quality video and audio over the wide range of frequencies of radio waves allocated for radio amateur (Ham) use.[1] ATV is used for non-commercial experimentation, pleasure and public service events. Ham TV stations were on the air in many cities before commercial television stations came on the air.[2] Various transmission standards are used, these include the broadcast transmission standards of NTSC in North America and Japan, and PAL or SECAM elsewhere, utilizing the full refresh rates of those standards. ATV includes the study of building of such transmitters and receivers, and the study of radio propagation of signals travelling between transmitting and receiving stations.[
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Channel Emulator/Fading Simulator
The channel emulator/fading simulator is a measuring instrument for reproducing the actual radio wave propagation environment of mobile communication.It reproduces the fading environment defined by 3GPP and virtual environment of multiple channels such as MIMO, HetNet.It will contribute to improving development and verification efficiency of the latest mobile communication system such as 5G NR, LTE-Advanced and IoT.
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F9 Systems CalBlade
The CalBlade backplane calibration fixture isdesigned to permit accurate and convenient impedance and transmission measurements of a HM-Zd backplane. The CalBlade is used to calibratethe logic card connector interface to the backplane rather than to the usual far-end of the coaxial measurement cables. Very accurate impedance, skew and propagation delay measurements are possible since parasitic fixturing effects are removed.
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Field Strength Meters
The FSM series of field strength meters will measure the strength of a RF signal appearing at its input from +20 dBm to -110 dBm for wide bandwidth models and +10 dBm to -120 dBm for narrow bandwidth models. The RF strength will be displayed on an LCD display to an accuracy of ±3 dB over the entire 130 dB dynamic range. A matching field signal generator is also available to act as a signal source for propagation studies.
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Dynamic and Fatigue Testing Systems
Instron offers an extensive range of fully-integrated dynamic and fatigue testing systems from 1000 N up to 5000 kN. Incorporating servohydraulic, servo-electric and linear motor technologies, these test instruments cover a broad range of fatigue, dynamic, and static testing applications. These applications include high-cycle fatigue, low-cycle fatigue, thermo-mechanical fatigue, fracture mechanics, crack propagation and growth studies, fracture toughness, bi-axial, axial-torsional, multi-axial, high strain rate, quasi-static, creep, stress-relaxation, and other types of dynamic and static tests.
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Beacon Transmitters for Radio Amateurs
Is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and receivers
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Radar Target Repeater
Series 8000
The Eastern OptX Series 8000 Radar Target Repeater is a portable, variable delay and propagation loss system designed for radar testing and alignment. The repeater may be remotely programmed in the field for dynamic operation. When connected to a user specified antenna the repeater can provide delays of up to 500 usec with a fixed delay, multiple discrete delays, or a progressive variable delay with amplitude control The Series 8000 features ultra wide bandwidth, low loss, high isolation, low noise figure, and high dynamic range.
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Isolated Gate Drivers
Analog Devices’ isolated gate driver portfolio offers designers performance and reliability advantages over designs utilizing optocouplers or pulse transformers. Utilizing ADI’s proven iCoupler® technology, the isolated gate driver family offers the advantage of a maximum propagation delay of 50 ns, less than 5 ns channel-to-channel matching, a 50-year lifetime for 400 V rms working voltage and galvanic isolation in a single package.
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Half, Full Bridge & Three Phase Drivers
Renesas' half-bridge (h-bridge), full-bridge and three-phase drivers handle voltages up to 100V, with industry-leading gate rise and fall times and exceptional input-to-output propagation delay performance.
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Ultrasonic Testing
Xiamen IDEA Electronic Technology Co., Ltd.
Is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested.
