Service Manuals, User Guides, Schematic Diagrams or docs for : Agilent Network analyzer evaluation of RF amplifier using Keysight B2961A 62A flyer 5991-1857EN [2]

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                                                  Network analyzer evaluation of RF amplifier using Agilent B2961A/62A
                                                  Agilent B2961A/B2962A 6.5 Digit Low Noise Power Source

                                                  The Agilent B2961A/62A provides precise DC
                                                  voltage or current for RF amplifier S-parameter
                                                  measurements


RF device Evaluation                                                                                   Using the Agilent B2961A/62A as a precise bias source
To determine RF device performance, design and test engineers generally measure electrical            The B2961A/62A's voltage source mode can be used to bias amplifiers. The applied bias cur
characteristics such as S-parameters, frequency bandwidth, distortion, etc.                            rent will be the difference between the source and device voltages divided by the value of the
Analyzers (network analyzers, spectrum analyzers, etc.) are commonly used to perform these mea-        external bias resistor used.
surements. Since most RF devices do not have an on-chip bias circuit, in addition to an analyzer a    In situations where characteristics over temperature or multiple bias current values need to be
voltage or current source is usually required to power and bias the device (in conjunction with a      observed, it is more convenient to use the B2961A/62A's current source mode as opposed to
bias resistor). This document outlines how to perform MMIC RF amplifier S-parameter measure-           its voltage source mode since the device voltage will vary depending on both temperature and
ments using the Agilent B2961A as the DC bias source.                                                  bias current
                                                                                                      The Agilent B2961A/62A's internal feedback mechanisms enable it to source precise and stable
                                                                                                       voltages and currents at their specified setting values despite varying load conditions. In addi
             Advantages of the B2961A/62A Low Noise Power Source                                       tion, users can easily switch between voltage and current sourcing without changing any cable
                                                                                                       connections.
       A revolutionary power supply for precision low-noise voltage and current sourcing


     Superior 6.5 digit 100 nV/10 fA resolution

    Wide 210 V/3 A (10.5 A pulse) bipolar range
                                                                     Benefits
                                                        

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