Service Manuals, User Guides, Schematic Diagrams or docs for : Agilent 5991-0422EN English _ 2013-11-17 _ PDF 123 KB c20140728 [12]

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Keysight Technologies
Correlating Microwave Measurements between
Handheld and Benchtop Analyzers
Using FieldFox Handheld Analyzers up to 26.5 GHz




                                        Application Note




           Abstract
           For the first time, technology breakthroughs have enabled high-performance
           measurement capabilities in a handheld analyzer. High-accuracy microwave
           measurements of network, spectrum, power and frequency can quickly be made using
           modern all-in-one analyzers with results that correlate to benchtop instruments to
           within hundredths of a db. This application note discusses the powerful capabilities
           of modern-day handheld analyzers and includes measurement comparisons between
           FieldFox handheld analyzers and several benchtop instruments including signal
           analyzers, power meters and vector network analyzers.
Introduction
     For the first time, technology breakthroughs have enabled high-performance measurement capabilities in a
     handheld analyzer. High-accuracy microwave measurements of network, spectrum, power and frequency can
     quickly be made using modern all-in-one analyzers with results that correlate to benchtop instruments often to
     within hundredths of a dB. For example, Figure 1 shows the S-parameters of a 10 GHz bandpass filter measured
     using a benchtop Keysight Technologies, Inc. PNA-X vector network analyzer (VNA) overlaid with measurements
     using a Keysight FieldFox handheld analyzer. As shown on the figure, the measured parameters are nearly
     identical between the two instruments. Markers are placed in the passband and rejection portions of the response.
     The relative difference in the S11 markers between the two instruments is less than 0.02 dB. The relative marker
     difference in S21 is 0.02 dB in the passband and 0.52 dB in the filter skirt at a level of 78 dB down from the peak.
     For this example, there is excellent correlation between measurements using the high- performance benchtop
     instrument and the modern all-in-one handheld.

     When working to compare the performance between two instruments, there is no substitution for examining the
     specifications found on the vendor's datasheets but it may be difficult to directly compare the two as the
     specifications are often listed under unique operating conditions.

     For example, the total amplitude accuracy listed on the datasheet for the Keysight MXA signal analyzer is specified
     over a temperature range of 20 

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