Polar Format - Agilent Technologies ENA Series User Manual

Table 3-3 Eight Types of Rectangular Display Formats
Type
Log magnitude format
Phase format
Expanded phase format
Positive phase format
Group delay format
Linear magnitude format
SWR format
Real format
Imaginary format

Polar Format

In the polar format, traces are drawn by expressing the magnitude as a displacement from
the origin (linear) and phase in an angle counterclockwise from the positive X-axis. This
data format does not have the frequency (stimulus) axis so, frequencies must be read using
the marker. Also, the polar format allows users to select one of the following three data
groups for displaying the marker response values.
• Linear magnitude and phase (°)
• Log magnitude and phase (°)
• Real and imaginary parts
Figure 3-8 Polar Format
Chapter 3
Y-axis Data Type
Magnitude
Phase (displayed in the range from -180°
to +180°)
Phase (it is possible to display above
+180° and below -180°)
Phase (displayed in the range from 0° to
+360°)
Signal transfer delays within the DUT
Magnitude
r
1 +
r
----------- -
( : reflection coefficient)
1 r
–
Real part of the measured complex
parameter
Imaginary part of the measured complex
parameter
Setting Measurement Conditions
Selecting a Data Format
Y-axis Unit Application Examples
dB •Return loss measurement
•Insertion loss measurement (or
gain measurement)
Degrees (°) •Measurement of the deviation
from the linear phase
Degrees (°) •Measurement of the deviation
from the linear phase
Degrees (°) •Measurement of the deviation
from the linear phase
Seconds (s) •Group delay measurement
(Abstract •Reflection coefficient
number) measurement
(Abstract •Measurement of the standing
number) wave ratio
(Abstract
number)
(Abstract
number)
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