Abstract
This paper presents the birth of the new hybrid method for the non-linear Radio frequency circuits’ simulation. This method is based on the combination of the wave concept iterative procedure (WCIP) and the harmonic balance (HB) for their advantages. It consists also the development of an application based on this method for the simulation of nonlinear planar radio frequency circuits. The simulation of the Radio frequency diode implemented in micro-strip line is done. The validations are obtained by the comparison of the results obtained by our new hybrid method and Harmonic Balance under Advanced Design System (ADS) software.
Highlights
The Technological advances have enabled to establish an efficient microwave circuit
The classical wave concept iterative process was not applied in the simulation of nonlinear circuits because this method is based on frequency domain analysis, for which we proposed a combination of harmonic balance (HB) and wave concept iterative procedure (WCIP) to solve the problem of limited simulation; HB and WCIP are based on the use of the Fourier transform and its inverse
We present the new approach of WCIP; it is a combination between WCIP classical and HB that we have proposed as well as their algorithm
Summary
The Time-domain analysis, if it allows to take in consideration a high number of non linearities, it is not suitable for circuits having relatively large time constant elements in front of the period of the applied signal. If this approach allows the distortions study, it only applies to circuits with low nonlinearities [3]. To remove the main problems caused by the two previous methods, an alternative approach has been proposed and become the most commonly used method in the analysis of nonlinear circuits. This method is called the harmonic balance (HB) [4]
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