Stats

Locked Locked
Replies 2
Subscribers 63
Views 17029
Members are here 0

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

How to define port in cadence which has a impedance value that is frequency dependent

Hi Everyone,

I am trying to use a port with complex value as a output termination in SP simulation of cadence. For example output port impedance value is 1/(2*pi*freq*C) which is also frequency dependent. Is there any idea how to do this in cadence? Thanks in advance.

Andrew Beckett over 6 years ago

Not as far as I know. Please contact customer support.

Regards,

Andrew.
Cancel
Vote Up 0 Vote Down

Cancel
Tawna over 6 years ago

I agree with Andrew. You need to contact Customer Support and file an enhancement CCR.

You can specify an impedance (resistance and reactance parameters) in the port. It is not frequency dependent.

From Spectre Circuit Simulator and Accelerated Parallel Simulator RF Analysis in ADE Explorer User Guide -- 8 - Terminating the Port

Resistance

The reference resistance of the system. The value must be a real number, but not 0. The default value is 50 ohms. This applies for all analyses. Note that the resistance and reactance can be set individually for each harmonic in harmonic balance large-signal analyses only. For more information, refer to Using the Harmonic Port with Harmonic Balance .

Reactance

The imaginary part of impedance is used for harmonic balance large and small-signal analyses, and for the ac, noise, xf, sens, stb, pz, and sp analyses. The reactance is not used for the dc, transient, and shooting-based large and small-signal analyses. The value must be a real number. The default is zero ohms. Note that the resistance and reactance can be set individually for each harmonic in harmonic balance large-signal analyses only. For more information, refer to Using the Harmonic Port with Harmonic Balance .
Cancel
Vote Up 0 Vote Down

Cancel

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.

Stats

How to define port in cadence which has a impedance value that is frequency dependent

Resistance

Reactance

Community Guidelines