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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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5G Radio Test Set
Operating from 20 to 40 GHz, two radios may be connected to the system allowing full duplex operation. Each radio may operates over identical Air Interface with uni or bi-directional multipath. The delays between radios may be varied from 0 to 1 mile in 5 foot steps with propagation loss control. The 2040+ creates a variable test range right in your lab. It can be used as a design aid and as a test tool for new modulation and encryption schemes prior to expensive and time consuming field testing.
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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Polarization Maintaining Circulator(PMCIR)
Zhongke Rayzer Optical Technology Co.,Ltd
non-reciprocating, one-directional, three port deviceswhich are great for bi-directional propagation of light in a Polarization Maintaining fiber. These optical circulators are ideal for advanced communication systems, fiber sensor and fiber laser applications.
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Beam Profiling
The beam propagation factor M2 is a common single parameter that charac-terizes the whole beam as it propagates through space. According to ISO standard 11146, this parameter could be defined by several measurement techniques based on beam profiling along several points of the propagating beam. The standard defines several measurement techniques, all of which are based on beam profiling measurements using devices such as cam-eras, knife edge and slits. There are two main measurement requierments - 1) Measurements of focused beams. 2) Measurements of collimated beams. Our M2 devices are capable of measurements of both laser types and due to their modular design interchangeable heads can be mounted in same M2 gear.
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Deskew Calibration Source for CP030, CP030A, CP031, CP031A, AP015, CP150, CP500
DCS025
The DCS025 Deskew Calibration Source generates time-aligned voltage and current pulses for precise deskew of voltage and current probes.This is critical for measurements in which small propagation delay differences between probes can have a large impact on a calculated measurement, e.g., instantaneous power semiconductor device loss measurements.
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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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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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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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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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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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*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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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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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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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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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.
