General Network Analyzer

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Presentation transcript:

General Network Analyzer Doug Rytting

Agenda General Block Diagram Mixer Characterization Large Signal Characterization

General Block Diagram

Large Signal Characterization

Mixer Characterization Int Source Int LO Meas S11 RF b0/a0 S21 IF b3/aR S12 b0/aR S22 b3/a3 This block diagram describes a system for complete characterization of the forward and reverse paths of a test-mixer. All four s-parameters of the test-mixer can be measured with no assumptions. Calibration can be done using the characterized calibration mixer described earlier. Or this block diagram can support the unknown thru calibration technique using a reciprocal mixer as the unknown thru calibration element. However there can be remaining errors due to the image and various higher order mixing products. These errors may vary as the RF, IF and LO port matches reflect these higher order products back into the mixer and remix to the primary operating frequencies.