By Topic

Efficient RF Circuit Simulation Using an Innovative Mixed Time-Frequency Method

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Oliveira, J.F. ; Electr. Eng. Dept., Polytech. Inst. of Leiria, Leiria, Portugal ; Pedro, J.C.

This paper suggests an answer to the problem of simulating heterogeneous wireless systems composed of baseband and RF blocks, as the former demand for SPICE-like engines, while the latter are more efficiently solved with frequency-domain tools as harmonic balance. The proposed time-frequency hybrid technique splits the circuit's node voltages or mesh currents into fast and slowly varying state variables treating the former with the popular envelope transient harmonic balance technique and the latter with a pure time-marching engine. This way, the circuit's hardest nonlinearities - and their rich harmonic content responses - are appropriately computed in the natural time domain, while the more moderate ones - and their corresponding smooth narrowband RF modulated signals - are efficiently processed in the frequency domain. Simulation tests performed in two illustrative application examples, revealed evident gains in computation speed over state-of-the-art RF simulation tools without any noticeable loss in accuracy.

Published in:

Microwave Theory and Techniques, IEEE Transactions on  (Volume:59 ,  Issue: 4 )