TEST & MEASUREMENT APPLICATION NOTES AND WHITE PAPERS

  • 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.

  • Testing A 24-28GHz Power Amplifier Using The 5G New Radio Test Standard

    In this white paper, we will introduce some of the main challenges in test and measurement of a device at mmWave frequencies, with a 26 GHz pioneer band defined for the UK between 24.25 - 27.5 GHz.

  • Making Higher Accuracy Oscilloscope Measurements

    One of the most important functional blocks in a digital oscilloscope is the analog-to-digital converter or ADC. This white paper explains why ADC resolution has become a more important consideration in oscilloscopes, especially for measuring small signal details.

  • 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. 

  • Transmit And Receive Testing Of Digital Waveforms Using R&S®CMA180

    The compact R&S®CMA180 Radio Test Set allows straightforward tests on devices that use analog or digital modulation and demodulation formats. This application note focuses on the use of the digital radio capabilities for measurements on radio transceiving devices in terms of their functionality and parameter characterization. Also shown is how to use the instrument with the various software tools available from Rohde & Schwarz for creating and evaluating digitally modulated signals.

TEST & MEASUREMENT SOLUTIONS

Radar simulation systems (i.e., RF sources and/or receivers) must perform to an exacting minimum standard if they are to accurately prove the field worthiness of EW systems.

The SMS7630 Series comprises low-cost, surface mountable, plastic packaged silicon mixer Schottky diodes designed for RF and microwave mixers and detectors. They include low barrier diodes and zero-bias detectors that combine Skyworks advanced semiconductor technology with low-cost packaging techniques. All diodes are 100 percent DC tested and deliver tight parameter distribution, which minimizes performance variability.

The dB-9004 is a custom-mounted Integrated Antenna Digital Control Unit (IADCU). It operates in the C, X and Ku-band frequency range and provides highly accurate RF output (FM, AM and pulse-shape modulated)

The dB-3907 TWT Amplifier (TWTA) is designed to use two wideband, periodic permanent magnet (PPM)-focused TWTs to amplify CW, AM, FM or pulse-modulated signals. The dB-3907 offers higher saturated output power and improved harmonic performance when compared to a single TWT approach.

The Si4133G Dual-Band RF synthesizer is a fast settling integer-N synthesizer

The dB-9003 and dB-9005 from dB Control are custom-mounted Integrated Stabilized RF Sources (ISRFS) designed to operate in the I and Ka-band frequency range. Both products feature high accuracy and a wide temperature operating range. They can be controlled and set up with a digital port. The units are packaged in a custom configuration with conduction cooling.

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

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