SNA5000A Vector Network Analyzer User Manual 102
𝑌
02
=
1
𝑍
02
𝑌
𝑡
=
2 × √𝑌
01
× 𝑌
02
𝑆
𝑎𝑏
− (𝑌
01
+ 𝑌
02
)
⚫
1/S: Reciprocal of S parameter.
⚫
Conjugation: Convert the measured value to a complex conjugate number.
Figure 4-3 Parameter conversion type
When both the fixture simulation measurement function and the port impedance function
are in the "on" state, the system will use the value set in the port impedance conversion. In
other cases, the system Z
0
(preset value: 50 Ω) will be used. The operation steps for selecting
the conversion type are as follows:
1. Click
Math
→
Analysis→Conversion
enter the selection interface.
2. Select the corresponding conversion type, effective immediately.
4.4 Equation editor
In the equation editor, we can input the algebraic formulas of standard mathematical
operators and functions, and reference the data available in the vector network analyzer. After
a valid formula is entered and enabled, the working trace will be displayed as the result of the
set formula and updated in real-time.
For example, enter the formula S21/(1 - S11). The trace is calculated by dividing each S21
data point by 1 and subtracting the value of the corresponding S11 data point. For a 201 point
sweep, the calculation is repeated 201 times, once per point. In addition, suppose that the
vector network analyzer is required to measure the directivity of a 3-port device to be tested,
Summary of Contents for SNA5000A Series
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