Specifications

Graph Data

Types

The data types (real, imaginary, magnitude, phase)

used in the displayed graph-types reflect the possi

ble ways in which S-Parameter data can be repre

sented in polar, Smith, or rectilinear graphs. For

example: Complex data—that is, data in which both

phase and magnitude are graphed—may be repre

sented and displayed in any of the ways described

below:

Complex Impedance; displayed on a Smith

chart graph

Real and imaginary; displayed on a real and

imaginary graph

Phase and magnitude components;

displayed on a rectilinear (Cartesian)

In addition to the above, the MS462XX can

display the data as a group delay plot. In

this graph-type, the group-delay

measurement units are time. Those of the

associated aperture are frequency in the

form of a percentage of the sweep

The quantity group delay is displayed using a modi-

fied rectilinear-magnitude format. In this format the

vertical scale is in linear units of time (ps-ns-ms).

With one exception, the reference value and refer-

ence line functions operate the same as they do with

a normal magnitude display. The exception is that

they appear in units of time instead of magnitude.

Examples of graph-data types are shown in

Figure 6-7 through 6-12, on the following pages.

DISPLAY MODES DATA

AND TYPES DISPLAYS

6-8 MS462XX OM