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Microwave Office Tutorial 1288

This document provides basic steps for designing a bandpass filter in AWR Microwave Office: 1. The specifications require a 0.1dB ripple fractional bandwidth 1/4 lambda coupled line bandpass filter with an S11 smaller than -15dB in the passband and a fractional bandwidth of 30%. 2. The steps include opening a new project, setting the frequency range, adding a microstrip substrate, designing coupled lines using hand calculation dimensions, connecting the lines, adding ports, and adding a graph to view the frequency response. 3. The document describes fine tuning the circuit parameters, using optimization to meet the goal response, and exporting the layout.

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Sudipta Mondal
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1K views29 pages

Microwave Office Tutorial 1288

This document provides basic steps for designing a bandpass filter in AWR Microwave Office: 1. The specifications require a 0.1dB ripple fractional bandwidth 1/4 lambda coupled line bandpass filter with an S11 smaller than -15dB in the passband and a fractional bandwidth of 30%. 2. The steps include opening a new project, setting the frequency range, adding a microstrip substrate, designing coupled lines using hand calculation dimensions, connecting the lines, adding ports, and adding a graph to view the frequency response. 3. The document describes fine tuning the circuit parameters, using optimization to meet the goal response, and exporting the layout.

Uploaded by

Sudipta Mondal
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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„ AWR Microwave Office

Basic Steps-Filter Design

By: Manjunatha Reddy.H.V


Email: Manjunatha_hv@rediffmail.com
Design Example

„ Spec.
0.1dB ripple fractional bandwidth ¼ lambda
coupled line BPF
S11 should smaller than -15dB in the
passband
FBW=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

3.Double click to
change the value

2.Choose MSUB
Here Al2O3 substrate is used
Dielectric 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 here


First resonator: line width 8.3125mil,gap 2.4061mil,length 486.6 mil
Second resonator: line width 8.9375mil,gap 2.625mil,length 485.3 mil
Third 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 graph
name
Add measurement

Right Click on the Graph


Add measurement cont’d

Choose the circuit

Choose measurement type

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)

2.Goal type

1.choose one measurement


to meet the goal

3.frequency to
satisfy goal
Optimize (3)

Variables to opt
optimize (4)
optimize (5)
optimize(6)
10. TXL
TXL cont’d

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