Propagation
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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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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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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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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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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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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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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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Community Noise Prediction Software, Version 2
SPM9613
A low-cost computer program for analyzing community noise and sound propagation emitted from a variety of noise sources. The engineering software is based on the ISO 9613 parts 1 and 2 standards. SPM9613 provides calculations at specific field points (listeners) and predictions of A- and C-weighted sound level contours as well.
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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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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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Predicting Microwave and RF Designs Virtually
RF Module
The RF Module is used by designers of RF and microwave devices to design antennas, waveguides, filters, circuits, cavities, and metamaterials. By quickly and accurately simulating electromagnetic wave propagation and resonant behavior, engineers are able to compute electromagnetic field distributions, transmission, reflection, impedance, Q-factors, S-parameters, and power dissipation. Simulation offers you the benefits of lower cost combined with the ability to evaluate and predict physical effects that are not directly measurable in experiments.
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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.
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Distance Sensor Technology
Photoelectric sensors
Our distance-measuring photoelectric sensors work according to the triangulation or propagation time measurement principle, with a red light or laser. The highly compact sensors have wide measuring ranges and measure very accurately with short response times.
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Timing Measurement Unit
TMM200
The TMM200 is a resource available for measuring such parameters as propagation delays, rise time, fall time and any other time-related parameter. Because of its wide input levels, the TMM200 is an instrument well suited to test both digital an analog devices.
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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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Simulating Optical Design Components
Wave Optics Module
The Wave Optics Module provides dedicated tools for electromagnetic wave propagation in linear and nonlinear optical media for accurate component simulation and optical design optimization. With this module you can model high-frequency electromagnetic wave simulations in either frequency- or time-domain in optical structures. It also adds to your modeling of optical media by supporting inhomogeneous and fully anisotropic materials, and optical media with gains or losses. It is straightforward to simulate optical sensors, metamaterials, optical fibers, bidirectional couplers, plasmonic devices, nonlinear optical processes in photonics, and laser beam propagation.
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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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MOSFET Drivers
The bridge driver products handle voltages up to 100V, with industry-leading gate rise and fall times and exceptional input-to-output propagation delay performance. Select parts are available in 4mm x 4mm and 3mm x 3mm DFN packages which meet IPC-2221 creepage and clearance specifications for high-voltage systems.
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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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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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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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Cost-Effective ATE System
PRO RACK ATE
Qmax Test Technologies Pvt. Ltd.
Pro-Rack is a cost effective ATE System, which comes with Modular Structure provision option to improvise and enhance much instrumentation based on the user’s requirements. Basically it is designed to cater to the needs of PCB test and repair depots, keeping in mind the changing PCB technology and the challenges in testing them off-line. It can provide complete PCB test and diagnostic functions for any kind of PCB including the latest very high density complex PCBs with high pin count PQFP, FPGA VLSI chips. AC /DC parametric tests enables testing of the DC parametric of device pins on the edge connector for input bias current, Fan out capacity ,Tri-state leakage currents, AC parametric measurements such as Input / Output Propagation delay Rise time / Fall time to further enhance fault coverage. Pro-Rack is designed with VPC Mass Interconnect adapter with 16 bit fixture ID interface to the UUT through simple clips and probes or through card edge or through a bed of nail test fixture.
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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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Channel Replicator
Series 7000
The Series 7000 System is a multi-radio test network which replicates the propagation path of real-world applications. With complete bi-directional capability radios may operate in full duplex mode at distances up to 150 nautical miles.
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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.
