Simulate The Frequency Characteristics Based On The Equivalent Circuit Parameter - Agilent Technologies 4294A Operating Manual

Analysis and Processing of Result
Calculate the equivalent circuit parameter and simulate the frequency
characteristics
When the equivalent circuit parameter has been calculated based on the result of sample
measurement, we recommend that frequency characteristics be simulated based on the
equivalent circuit parameter by following the procedures to "Simulate the frequency
characteristics based on the equivalent circuit parameter" (below). The adequacy of the
selected equivalent circuit and validity of the parameter calculation result can be verified
by comparison between the frequency characteristics of the actual sample and the
simulation result.
To calculate the equivalent circuit parameter for a resonator, another possible method, in
addition to the method of equivalent circuit analysis used in the equivalent circuit E
discussed above, is to use the specifically designed GP-IB command. For details, see
Programming Manual.
Simulate the frequency characteristics based on the equivalent circuit
parameter
Simulate the frequency characteristics according to the following steps:
NOTE
Start from Step 12 when you want to simulate the frequency characteristics on the basis of
the equivalent circuit parameter calculated according to the procedure of "Calculate the
equivalent circuit parameter based on the measurement result" on page 249.
Step 1. Press the
Step 2. Press the
Step 3. Press the
Step 4. Press the
equivalent circuit diagram, instead of the measurement trace, is shown on the screen. This will
enable you to check the equivalent circuit to be selected in the next step. It should be noted that
equivalent circuit analysis is enabled without having to turn on this display.
Step 5. Press the
Step 6. Select the equivalent circuit according to Table 8-3 on page 250 (using keys
Step 7. Press the
Step 8. Press the
Definition menu.
Step 9. Use the
numerical value is to be entered.
Key operation
Resistance of R1 of selected equivalent circuit
Capacitance of C1 of selected equivalent circuit
Inductance of L1 of selected equivalent circuit
Capacitance of C0 when the equivalent circuit E is selected
The current set value of the equivalent circuit parameter is displayed in the set parameter
252
key to display the Display menu.
[Display]
key to display the second page of the Display menu.
more 1/2
key to display the Equivalent Circuit Analysis menu.
EQUIV CKT
key to turn on the equivalent circuit diagram indication function. The
CKT on OFF
key to display the Equivalent Circuit Select menu.
SELECT CIRCUIT
key to go back to the Equivalent Circuit Analysis menu.
return
DEFINE PARAMETERS
, , and keys to select the equivalent circuit parameter where the
R1 C1 L1 C0
key to display the Equivalent Circuit Parameter
, , , and ).
A B C D E
Key operation
R1
C1
L1
C0
Chapter 8