TEST & MEASUREMENT APPLICATION NOTES AND WHITE PAPERS

• 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.

• What Is Pulse Shaping?

  In this industry briefing,George Bollendorf explains a new approach to fix fidelity issues caused by the transmitting amplifier that matches input pulse signal shape, minimizes droop, overshoot, ringing, and rise and fall times.

• Load Transient Response – Enhancing Loop Stability Testing

  Ensuring stability in power supply design requires validating switching converter stability through frequency loop and load transient responses, aided by modern oscilloscopes for visualizing PWM signals and identifying converter effects.

• Radiated Wireless Coexistence Testing

  This application notegives the reader a clear idea of how to configure standardized test instruments from R&S in order to generate the wanted signal as well as unintended interference signals and conduct measurement to monitor device performance.

• 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.