Measurement Sparameter of LNetwork Using ADS

1
Measurement S-parameter of L-Network
Using ADS
2
Design Circuit with Lumped
Components
? Choose Lumped-Components on the Component
Palette List
? Click on the inductor L, then click to insert
the inductor on the schematic. Next, insert the
another capacitor
3
Design Circuit with Lumped
Components
? Complete the schematic as shown below with
Ground, Wire, Rotate icons and edit the
value of L12.5 nH, C13.58 pF
?Tip The shortcut key of Rotate -gtCtrlR
? Select Simulation-S Param on the Component
Palette List
4
Setup the Simulation
? Insert the S-parameter simulation Controler(gear
icon) and the terminations(Term)
5
Setup the Simulation
? Double click on the terminations on the
schematic When the dialog box appears, change the
reference impedance Z12 Ohm(Term1), Z58
Ohm(Term2)
6
Setup the Simulation
? Double click on the S-parameter simulation
controller on the schematic. When the dialog box
appears, change the start frequency to 10 MHz,
the stop frequency to 3 GHz, the step size to 10
MHz (The frequency we are interested in is 1.5
GHz)
7
Run the Simulation
?Tip The shortcut key of Simulate -gtF7
? Click the simulate icon(gear) to start the
simulation process. Then the data display window
is opened automatically
? Click to insert the Rectangular Plot
8
Display the simulation results
? When the dialog box appears, select S(1,1) and
click Add. The next dialog will prompt you to
specify the type of data to display. Select dB.
Try to display S(2,1) as same method
9
Display the simulation results
? Marker gt New... Select the trace and click to
insert the marker. Move the marker using the
cursor or the keyboard arrow keys to 1.5 GHz
what is the matching frequency
? The Rectangular plot of dB(S(1,1)) means Return
loss
? The Rectangular plot of dB(S(1,1)) means Gain