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Keysight Technologies
Measuring the Burst Time-Gated
Power Signal of Wireless Technologies
Using Keysight Power Sensors
For TDMA, GSM, WiMAXTM, WLAN, and LTE devices

                                       Application Brief
Introduction

     Measuring pulse, burst, or modulated signals for wireless technologies such as TDMA, GSM,
     WLAN, WiMAX, and LTE is very important because it is part of functionality testing and power
     amplifier module verification during the manufacturing process. High-performance, and average
     and peak power meters and power sensors are required for measuring the average power and crest
     factor (peak-to-average ratio) of modulated signals throughout various research and development
     stages and the manufacturing verification process. To measure the average power of a time-gated
     pulse or burst signal in a specific timeframe, a lower cost solution is sufficient.

     As this application note illustrates, the compact Keysight Technologies, Inc. U2000A Series USB
     power sensor is a low cost solution for measuring the average and time-gated average power
     of burst signals. The Keysight U2020 X-Series USB peak and average power sensor is a high
     performance USB power sensor with additional 30 MHz video bandwidth capability for measuring
     average, peak, and peak-to-average power burst signal. Both USB power sensors series allow the
     power measurement to be displayed on a PC and provide the same functionality and performance
     as conventional average power and peak power meters and sensors.

     In this paper, we pick one of the wireless technologies; timeslot burst structure signal, GSM (Global
     System for Mobile communication) for reviewing.

     This application note applies to the following products from Keysight

      

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