Tutorial: Magic Tee Coupler - Empire

Tutorial: Magic Tee Coupler
Comments:
Topics:
A magic tee is a four-port, 180 degree
hybrid splitter, realized using waveguides.
Drawing Interface:
Basic Features
Library Elements
Field Animation
Processing Interface:
Preprocessing
Simulation Control
Postprocessing
Resonance Estimation
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Step 1 : Template Wizard
1. Start Empire XCcel
2. Click on Start From Scratch
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Step 2: Definition of Metal Block
1. Create a new layer and name it
as `Metal´
2. Select + Structure +Create+Box
x0=0 ; x1=250000
y0=0 ; y1=200000
z0=0 ; z1=150000
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Step 3: Definition of Waveguide
1. Create a layer with
dielectric
properties and
name it as
´wg-Air´
2. Set the priority of
this layer to be the
highest
3. Now create three
different Boxes in a
T-shape with inner
dimensions as
shown in the figure
4. For Details See
Next Page
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Step 4: Setup of Waveguide
1. Select ‘wg-Air‘ as the current layer
2. Select +Create +Box
x0=0 ; x1=250000
y0=100000 ; y1=150000
z0=30000 ; z1=50000
3. Select +Create +Box
x0=100000 ; x1=150000
y0=100000 ; y1=0
z0=30000 ; z1=50000
4. Select +Create +Box
x0=115000 ; x1=135000
y0=150000 ; y1=100000
z0=50000 ; z1=150000
Box Creation Editor
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Step 5: Port Definition
1. Create a new layer and name it
ports and delete its properties
2. Create Boxes at the four open
ends of the waveguide and assign
Waveguide property and port
number to each of these boxes
3. For Details See Next Page
Comments:
Coordinates may be entered by
values or mouse input
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Step 6 :Port Definition(Co-ordinates)
1. Port1: (Excite only this particular port by entering its
start and end Excitation Port Number.)
x0=100000 ; x1=150000
y0=500 ; y1=-500
z0=30000 ; z1=50000
2. Port2:
x0=249500 ; x1=250500
y0=150000 ; y1=100000
z0=30000 ; z1=50000
3. Port3:
x0=-500 ; x1=500
y0=150000 ; y1=100000
z0=30000 ; z1=50000
4. Port4:
x0=115000 ; x1=135000
y0=150000 ; y1=100000
z0=149500 ; z1=150500
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Step 7: Field Dump Box
1. Create layer field-dump
2. Change the layer property to
- dumpbox
- field
- field distribution
+ Add Sequence 3.5 to 5.5GHz
with for e.g. 5 sampling
points or as desired
3. Select +Create +Box
x0=-5000 ; x1=255000
y0=205000 ; y1=-4500
z0=-5000 ; z1=155000
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Step 8:Simulate the Magic Tee Coupler
1. Click Start Simulation
and view the results on screen
as the simulation is running.
Voltage
S-Parameters
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Step 9:
1. Create a layer for field display
and name it as field-display
2. Change Object Property
- Field
- Field Display
- 3D Field Animation Box
- Entired desired frequency
3. Create Boxes along the T-joint of
the Magic Tee in the respective
layers and
4. Now Switch to the 3D-Mode to
visualize the fields
Field Animation in 3D-Mode:
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