Abstract
This paper is devoted on the application of the computational method for calculating the transient electromagnetic (EM) near-field (NF) radiated by electronic structures from the frequency-dependent data for the arbitrary wave form perturbations i(t). The method proposed is based on the fast Fourier transform (FFT). The different steps illustrating the principle of the method is described. It is composed of three successive steps: the synchronization of the input excitation spectrum I(f) and the given frequency data H0(f), the convolution of the two inputs data and then, the determination of the time-domain emissions H(t). The feasibility of the method is verified with standard EM 3D simulations. In addition to this method, an extraction technique of the time-dependent z-transversal EM NF component Xz(t) from the frequency-dependent x- and y- longitudinal components Hx(f) and Hy(f) is also presented. This technique is based on the conjugation of the plane wave spectrum (PWS) transform and FFT. The feasibility of the method is verified with a set of dipole radiations. The method introduced in this paper is particularly useful for the investigation of time-domain emissions for EMC applications by considering transient EM interferences (EMIs).
Highlights
With t he unintentional e lectromagnetic interferences (EMIs), the design engineers needs to take into account the electromagnetic c ompatibility ( electromagnetic compatibility (EMC)) models during t he electronic s ystems manufacture p rocess [1,2,3]
B y analyzing t he f requency-domain r esults a chieved by CST Microwave Studio, one obtains the cartographies of the frequency-dependent electric and magnetic field from fmin = 1 GHz to fmax = 1.5 GHz step ∆f = 0.01 GHz
After the program execution of the algorithm indicated by the flow chart described by Figure 4, one gets the results shown in Figure 9 and Figure 10 via the combination of the frequencydependent d ata o f t he el ectric o r m agnetic f ield components associated to the frequency coefficient of the excitation signal
Summary
With t he unintentional e lectromagnetic interferences (EMIs), the design engineers needs to take into account the electromagnetic c ompatibility ( EMC) models during t he electronic s ystems manufacture p rocess [1,2,3]. It has been found that the EMC engineering should include the transient EM-NF emissions especially in time-domain [ 10-20] This topic attracts many o f electronic engineers an d r esearchers. Undesired transient effects can be created by different perturbations a s t he no n-linearity o f electronic devices during their c ommutations [ 10] These transient E M-field emissions need to be canceled out for the reliability. W e will e xtend t he FFT a nd I FFT i nstructions to reconstitute th e t ime-dependent m agnetic NF m aps Hx,y,z(t) radiated b y an el ectronic device f rom t he frequency components Hx,y,z(f) for any excitation undesired currents or voltages for the EMC applications as proposed in [28][35]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
