W2307EP Datasheet, PDF (2/2 Pages) Keysight Technologies – Controlled Impedance Line Designer

Steps For Characterizing Your Pre-Layout Design
The starting point is a Technology Substrate. CILD can be used to characterize the phys-
ical parameters of the transmission line, substrate thicknesses, and material parameter
values so you obtain the desired characteristic impedance for the line. The parameters
that result from a CILD analysis can be transferred to ADS as a Technology Line Type.
Such Line Type can then be used in a pre-layout schematic. The new LTLINE components
make a reference to the line type. Likewise, in layout, the Line Type can be referenced
from an LTLINE component or from the new Route interconnect object.
Step 1.
Open your multi-layer substrate de-
sign in the ADS substrate editor
Step 2.
Select Tools > Controlled Impedance
Line Designer to open CILD
Step 3.
Select a microstrip line to characterize
and define the cross-section of the
transmission line
Step 4.
Run the simulation and analyze the
results
Step 5.
Use the sweep analysis to see how the
Zc varies versus the width of the line
Step 6.
Investigate how Zc changes versus the
thickness of the conductor
Step 7.
Use the statistical analysis mode to char-
acterize the sensitivity of your design
Step 8.
Update your CILD Substrate/Material Parameter
results in ADS
Step 9.
All parameters linked to the cross-section of the
line can be used to define a new or update an
existing Line Type
This information is subject to change without notice.
© Keysight Technologies, 2014
Published in USA, August 4, 2014
5991-3924EN
www.keysight.com