4 MEASUREMENT CONDITIONS SETTING
74
Table 4.11 Rectangular formats
Format Type
Description
Label Data Type (Y-axis) Measurement Unit
(Y-axis)
Logarithmic
Magnitude
Log Mag S-parameter logarithmic
magnitude:
Slog20 × ,
22 baS +=
Decibel (dB)
Voltage
Standing Wave
Ratio
SWR
S
S
-
+
1
1Abstract number
Phase Phase S-parameter phase from –
180° to +180°:
b
a
arctg×
p
180
Degree (°)
Expanded
Phase
Expand
Phase S-parameter phase,
measurement range
expanded to from below –
180° to over +180°
Degree (°)
Group
Delay
Group Delay Signal propagation delay
within the DUT:
w
j
d
d
- ,
b
a
arctg=
j
, f
×
=
p
2
Second (sec.)
Linear
Magnitude
Lin Mag S-parameter linear
magnitude:
22 ba +
Abstract number
Real Part Real S-parameter real part:
)(Srea
=
Abstract number
Imaginary Part Imag S-parameter imaginary part:
)(Simb
=
Abstract number
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