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.

• 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.

• Battery Simulation With DC Power Supplies

  This application note guides users in creating custom battery models for R&S^® NGM200 and R&S^® NGU201 power supplies, enabling gradual battery discharge via QuickArb and data logging, with recorded data adaptable for battery simulation using a provided developer tool.

• Telecommunications Testing Using AR Amplifiers

  This application note explores a number of testing requirements for telecommunication devices and how to benefit from AR RF/Microwave Instrumentation’s products. The paper will cover two broad categories of device testing – characterization and reliability – within mid to high power systems.

• EMC32 To R&S ELEKTRA Migration Using The ELEKTRA Migration Tool

  Discover how to use the R&S ELEKTRA Migration Tool for converting the backup data into the XML format that can be interpreted by the R&S ELEKTRA software.