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Propagation
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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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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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1204a/1204a-mc Digital Signal Distribution
Precise Time and Frequency, Inc.
The ptf 1204A Digital Signal Distribution unit is a flexible platform used for distribution of various pulse formats (ex. 1 PPS, 1 PPM, 10 PPM, etc). The ptf 1204A will also distribute digital timing signals such as IRIG-B DCLS format. In order to cater for a wide range of input pulse frequencies, the ptf 1204A design utilizes a CPLD with jumper selectable alarm delays tocorrectly alarm on the various pulse frequencies. The unit reproduces precision pulse input signals with the minimum of propagation delays.
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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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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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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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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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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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3D Sound Intensity Analysis Software
DS-0225A
Finding out the position where the noise is occurring, and grasping the state of acoustic propagation are important ways to find effective noise countermeasure or improvement of acoustic environment.
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Modular Timing Systems
The Brandywine Communications family of modular time and frequency systems offer superior performance, a wide range of option choices, and ease of design. The newest modular timing system to the Brandywine family is the HPTS, offering dual redundancy, network-centric modular system with the highest accuracy of 10ns and allows for automatic compensation and propagation delay.
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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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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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Transmitter
TX2440 MmWave
The unique propagation characteristics of 5G mmWave signals require upfront testing with a Continuous Wave (CW) transmitter to ensure proper network design. PCTEL’s portable, high-power TX2440 mmWave Transmitter propagates mmWave signals at any venue for convenient testing with PCTEL® scanning receivers.
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LTE Networks
PBE offers secure and reliable wireless solutions for critical mining and tunnel construction operations. Complete end-to-end private LTE networks provide unified infrastructure for underground applications with different QoS, bandwidth and latency requirements.PBE private LTE allows customization of the capabilities of public cellular LTE networks and scale it according to the size and requirements of the particular mine. P-LTE networks provide both human and machine communications on a single, seamless and extendable network that offers long ranges of propagation. In addition to the standard telemetry (air quality monitoring, ventilation management, pump control, belt control, fire suppression, evacuation alerting stations, etc.) LTE networks provide a gateway for:- Voice Communications (VoLTE, VoIP, Push-to-Talk)- Video Communications- CCTV- Internet Access- LAN Access- Real Time Machine Control- Fleet/Asset Management- Access Control/Localization- Automation- Collision Avoidance- Remote Diagnostics
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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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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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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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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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Laser Alignment
Laser beams are tracing a perfect straight propagating line. A special unique instrument was developed to monitor the direction and position of this laser beam, creating a cornerstone device for alignment. Typical applicationns are mechanical straightness and alignment, calibration articulated arms, accurate positioning, and many more. To facilitate unrestricted movement of the AlignMeter family a built-in wireless system was developed.
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M2 & BPP Systems
The M2 factor wil define the beam propagation characteristics compared to ideal Gaussian beam propagation. According to ISO Standard 11146 rightfully offers the laser beam characterization as "M2 times diffraction limited beam", as such, a perfect beam will have an M2 of 1. 1 will be the best achievable value and no beam could have an M2 less than 1. Our conceptual design is based on sub-assemblies allowing to change the sensing head in the M2 device, offering multiple wavelengths heads up to 2.7 microns from deep UV (knife-edge technology) and camera based technology with built-in automatic filter wheel for adjustment. For focused beams, the same measuring head could be attached to a device for meauring highly divergent or highly convergent beams - FocusGage-BA, wherein the Laser Analyzing Electronic Autocollimator offers the capability of divergence measurement with Coming Soon M2 definition. M2Beam is the cornerstone of those measuring devices.
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Siradel 360
Siradel 360 offers a comprehensive suite of solutions, encompassing Siradel Web Services, Siradel InoWave, and Siradel Planner, along with expert consulting and geodata services. This unique value proposition ensures accurate simulations, efficient network design, and robust performance, making Siradel a one-stop shop for all radio propagation and network optimization needs.With over 30 years of expertise, Siradel empowers telecom operators, research labs, and manufacturers to tackle the challenges of B5G/6G technologies and drive technological innovation.
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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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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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*Beam Propagation Analysis
M²
M², or Beam Propagation Ratio, is a value that indicates how close a laser is to being a single mode TEM00 beam, which in turn determines how small a beam waist can be focused. For the perfect Gaussian TEM00 condition the M² equals 1. M² cannot be determined from a single beam profile measurement. The ISO/DIS 11146 requires that M² be calculated from a series of measurements. M² is measured on real beams by focusing the beam with a fixed position lens of known focal length, and then measuring the characteristics of the artificially created beam waist and divergence. We have a number of solutions for the measurement of M² ranging from simple manual processes to fully automated dedicated instruments, depending on the frequency of the need to measure M² of lasers and laser systems.
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Compact Tension Grips
These compact tension grips are for plane-strain fracture toughness tests of metallic materials. Fracture toughness testing involves applying static loads to a notched sample to investigate brittle crack propagation and fracture conditions.
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Wall Measurement Thickness Gauge Wall Thickness Test Instrument
HS160
Shenzhen Chuangxin Instruments Co., Ltd.
HS160 Wall measurement thickness gauge, wall thickness measuring equipment apply to measure the thickness of all kinds of material, through which the ultrasonic wave can propagate at a constant speed and can get reflection from the back. This instrument can be used for a variety of plate and all kinds of machining parts for accurate measurement. Another important function of this gauge is to monitor all kinds of pipelines and pressure vessels used in the production equipment, monitoring their degree of corroded thinning during the using process. It's widely used in petroleum, chemical industry, metallurgy, shipbuilding, aviation, aerospace and other fields.
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Radar Target Generator
Series 1100
The Eastern OptX Series 1100 Radar Target Simulator is a true propagation path replicator. The Series 1100 receives the signal transmitted from a radar system and adds the round-trip propagation delay associated with the target distance. That signal is then output to the radar receiver. The radar I/O may be connected directly to the Series 1100 or detected and transmitted using user specified antenna. For a moving target the system will add the appropriate Doppler shift associated with the target speed and radar frequency. The Series 1100 is broad band with ranges up to 40 GHz and with a dynamic range of over 100 dB.
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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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Optical Distance Sensors
Leuze electronic GmbH + Co. KG
Optical distance sensors perform different measurement tasks in various applications with varying requirements with regard to accuracy, resolution and size. To meet these diverse needs, the operating principles of triangulation, propagation time measurement and phase measurement in different sensor sizes and specifications are covered by a wide range of optical distance sensors.
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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.
