TEST & MEASUREMENT APPLICATION NOTES AND WHITE PAPERS

  • Crowdsourcing Versus Mobile Network Testing

    The need for an objective evaluation of mobile network quality and performance drives two fundamentally different approaches, crowdsourcing, and mobile network testing.

  • How To Perform A Radiated Emissions Measurement

    Explore the intricacies of setting up radiated emissions testing with this guide, covering everything from antenna placement and polarization to accurate frequency selection and signal measurement.

  • Effortless Testing Of Direction Finding Devices – Amplitude Based

    Together with multiple coupled R&S SMW200A vector signal generators, the R&S Pulse Sequencer allows performance characterization of all types of direction finding equipment such as devices that use amplitude comparison, interferometric or time difference of arrival (TDOA) techniques. 

  • Linearity Of The JFET And MOSFET When In Saturation Over The Entire Cycle

    Performing RF amplification in a way that is simultaneously linear and efficient has been a challenge in power amplifier (PA) design. Single transistor PAs can either be operated in a linear, but inefficient, current source mode of operation or as efficient, but nonlinear, switches. These techniques use two FETs, but this paper demonstrates that linear amplification can be achieved at high power with an efficiency greater than 60%, using a single FET.

  • Directivity And VSWR Measurements: Understanding Return Loss Measurements

    The characterization of microwave networks requires discriminating between forward and backward traveling waves. Unfortunately no directional device is perfect, leading to potentially dramatic measurement errors. In this note we show that return loss and VSWR measurements are greatly complicated by the finite performance of the directional device used to measure the reflected power.

TEST & MEASUREMENT SOLUTIONS

dB Control’s family of traveling wave tube amplifiers (TWTAs) features a combined frequency range of 2 to 18 GHz up to 15kW output power. dB Control utilizes our proprietary transformer fabrication, encapsulation and high-voltage potting techniques developed for demanding military applications which results in superior reliability, low cost and ease of maintenance.  Products in this series are ideal for several applications, including: test and measurement, electronic warfare (EW) simulation, RFI/EMI/EMC Testing, electronic countermeasures (ECM), and antenna pattern and radar-cross section measurements.

XF leverages the EM principle of superposition to quickly analyze port phase combinations with a single simulation.

Qorvo introduces the QPC2040 single-pole, double-throw (SPDT) switch operating within the 8 – 12 GHz frequency range for commercial and military radar, communications, electronic warfare, test instrumentation, and other general purpose applications. The switch typically supports 10 W input power handling at control voltages of 0/−2 V for both CW and pulsed RF operations.

The Si894x is a galvanically isolated delta-sigma modulator which outputs a digital signal proportional to the voltage level at the input. 

D-TA Systems offers the MFEL 1000 portable ELINT data collection solution designed to provide automatic spectrum scanning for signal activity (pulse or CW), PDW extraction and de-interleaving to tracks where signal characterization is performed automatically. The system includes a built-in 6 TB (expandable to 18 TB) SSD data storage for I/Q data collection in both on-site and off-site analysis.

Electrostatic discharge testing is utilized worldwide by electronics manufacturers to determine the ESD susceptibility of their devices. It is extremely difficult to estimate the exact cost of ESD loss annually, but it can safely be stated that ESD requires the development and testing of many hardware prototypes and contributes to a high number of warranty claims and loss of consumer confidence if failure occurs in the hands of the customer. Given the high cost in time and materials associated with ESD hardware testing, the ability to simulate the ESD testing process in XFdtd is extremely valuable, allowing engineers to pinpoint locations susceptible to ESD damage and optimize ESD mitigation during the concept and design stage of product development.

The Microwave VME/VXS Tuner by Hunter Technology is the industry’s smallest available microwave SIGINT VME tuner. It covers the 500 MHz-20.0 GHz and 30.0 GHz to 40.0 GHz frequency ranges and features incredibly fast tuning, low phase noise, excellent mechanical conductivity, a single slot 6U VME configuration, and much more.

The dB-9002 from dB Control is a custom-mounted Dual Instantaneous Frequency Measurement (DIFM) unit designed to operate in the C, X, and Ku-band frequency range and provide highly accurate measurements at 100 ns to CW pulse width measurements.