Altera JNEye - Manual (Page 144)

After entering the model parameters, click Analyze and Channel Designer will compute the frequency
response of the current design. The integrated plotting engine can display the insertion loss or return
loss characteristics. When you alter the model parameters, the GUI displays a message that indicates the
channel characteristics may have changed. Click Analyze to redraw the channel characteristics. You can
also load or save the component design for reuse in the future.
If you are satisfied with your design, click OK to save and close the component design GUI. If you click
Exit or the X button of the window, the design will be discarded.
Microstrip Component
Microstrip is a type of electrical transmission line. It consists of a conducting strip separated from a
ground plane by a dielectric layer known as the substrate. A typical microstrip structure is shown in the
following figure with these parameters:
• Input parameters
• W—Signal trace width (in various units)
• L—Signal trace length (in various units)
• T—Signal trace thickness (in various units)
• H—Separation between ground planes (in various units)
• Er (Dk)—Relative dielectric constant. JNEye Channel Designer supports frequency dependent
dielectric constant mapping.
• TanD (Df)—Dielectric loss tangent. JNEye Channel Designer supports frequency dependent
dissipation factor mapping.
• Cond—Conductor conductivity (S/m)
• Rough—Surface roughness (in various units)
• Mur—Relative permeability (no unit)
• Freq—Frequency where the Z0 (Impedance) and E-Eff (electrical length) are reported (in various
units)
• Output parameters
• Z0—Impedance at specified frequency Freq (Ohm)
• E-Eff—Electrical length (in various units)
2-138 JNEye Channel Designer
UG-1146
2015.05.04
Altera Corporation Functional Description
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