microwave office tutorial 1288
TRANSCRIPT
Design Example
Spec.0.1dB ripple fractional bandwidth ¼ lambda coupled line BPF S11 should smaller than -15dB in the passbandFBW=30%
Open MWO from the shortcut
To create a project:1 Choose File > New Project.2 Choose File > Save Project As.Choose Options > Project Options.Click the Global Units tab
Set project frequencies
To specify the simulation frequency:Click the Project tab in the lower left of the window.Double-click Project Options. Click the Frequencies tab.Change the Data Entry Units to MHz.Type “500” in Start, “4000” in Stop, and “50” in Step, and then click Apply.The frequency range and steps you specified display in Current Range.Click OK.
1.Open New Schematic
Click on New Schematic
Enter Schematic’s name
2.Choose elements
Press Elem tab
3.Add substrate (Microstrip here )
1.click Substrates
2.Choose MSUB
3.Double click to change the value
Here Al2O3 substrate is usedDielectric constant=9.8
Substrate Thickness=15mil
4.Choose coupled line
1.Coupled lines
2.Drag MCLIN
Hand calculation data for coupled lines
Total four ¼ lambda resonators are used hereFirst resonator: line width 8.3125mil,gap 2.4061mil,length 486.6 mil
Second resonator: line width 8.9375mil,gap 2.625mil,length 485.3 milThird resonator: line width 8.9375mil,gap 2.625mil,length 485.3 mil
Fourth resonator: line width 8.3125mil,gap 2.4061mil,length 486.6 mil
5.Connect the coupling lines
6.Add ports
Click here
7. See the response- Add Graph
Add Graph cont’d
Enter graphname
Add measurement
Right Click on the Graph
Add measurement cont’d
Choose measurement type
Choose the circuit
use dB scale
Result
8. Fine tune the ckt parameters
Click here and choose the ckt parameters to
tune
Start to tune
1.click tune
2.drag the value to change
Fine tune result
9. Optimize
Optimize (2)
1.choose one measurement to meet the goal
2.Goal type
3.frequency tosatisfy goal
Optimize (3)
Variables to opt
optimize (4)
optimize (5)
optimize(6)
10. TXL
TXL cont’d