Agilent Technologies ES, 8753ET quick start Example Impedance Measurement Trace

Quick Start: Learning How to Make Measurements

Learning to Make Reflection Measurements

•Choose LIN MKR if you want the analyzer to show the linear magnitude and the phase of the reflection coefficient at the marker.

•Choose LOG MKR if you want the analyzer to show the logarithmic magnitude and the phase of the reflection coefficient at the active marker. This is useful as a fast method of obtaining a reading of the log magnitude value without changing to log magnitude format.

•Choose Re/Im MKR if you want the analyzer to show the values of the reflection coefficient at the marker as a real and imaginary pair.

• Choose R+ jX MKR (the default marker format) to show the real and imaginary parts of the device impedance at the marker. Also shown is the equivalent series inductance or capacitance (the series resistance and reactance, in ohms).

Figure 2-15 Example Impedance Measurement Trace

• Measuring Admittance

To change the display to an inverse Smith chart graticule and the marker information to read admittance, press G+ jB MKR .

As shown in Figure 2-16, the marker reads admittance data in the form G+jB, where G is conductance and B is susceptance, both measured in units of Siemens (equivalent to mhos: the inverse of ohms). Also shown is the equivalent parallel capacitance or inductance.

Chapter 2 2-23