Various methods for analyses of scattering are mentioned and new approximate relationships are derived. Experimental results for thin wire and several numerical simulations of forward scattering using approximate estimations, physical optics and exact solutions for two-dimensional scattering are presented both for far and near fields. That allows not only accuracy analyses but also conclusions ...

In this paper, nonlinear phenomena appearing in DC-DC converters are analyzed by using a discrete time nonlinear map (the A-switching map). We then propose a feedback control method improving switch-mode power supplies electromagnetic compatibility (spectral peaks compliance). To confirm the efficiency of this new and simple method, the map is derived in closed form from the system of nonlinear...

In this issue of WIDEXPress we will explain in some detail how the cellular telephone systems work, why they produce the interference and what is being done about it. Apart from our own research, this survey also relies on research made at National Acoustical Laboratories (NAL) in Australia, by the European Hearing Instrument Manufacturers’ Association (EHIMA) in Europe, and at the University o...

Background information: Electromagnetic radiation is the transmission of energy in the form of waves having an electric and magnetic component. Almost all forms of electromagnetic radiation, which constitute the electromagnetic spectrum, such as radio waves, visible, infrared, and uliraviolet light, X-rays and gamma rays, are employed in the contemporary Hospital. There are some crucial decisio...

The analysis of transient scattering from perfectly conducting as well as potentially inhomogeneous penetrable bodies often is effected using marching on in time based time domain integral equation methods. This paper reviews the state of the art in the field, highlighting recent advances that address not only their stability and computational efficiency, but also their convergence and hybridiz...

In this paper a procedure is shown to modify a finite state machine in such a way that an OneShot-Coding of their states is possible. The characteristic of One-Shot-Codes for finite state machines result in some properties of the realized sequential networks. The main advantage is less power dissipation, better electromagnetic compatibility and very fast circuits because only one bit changes be...

In some industrial applications of CAN, the influence of interference becomes substantial. The paper describes measurements of the electromagnetic compatibility of CAN. The bus was submitted to standardized EMC tests and the results were evaluated so that some recommendations for designers could be given. These comprise basic design rules which increase the electrostatic discharge immunity, and...

Many documents describe standardized methods and standard equipment requirements in the field of audiology and hearing aids. These standards will ensure a uniform level and a high quality of both the methods and equipment used in audiological work. The standards create the basis for measuring performance in a reproducible manner and independent from how and when and by whom parameters have been...

In the channel assignment problem, frequencies are assigned to the requested calls in a cellular mobile network subject to electromagnetic compatibility constraints such that a required bandwidth is minimized. In this paper, a new method based on genetic algorithm is proposed to solve these problems. The performance of the proposed method is evaluated by solving 3 channel assignment problems. R...

Six special technical sessions are planned for the 2022 IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity. These will feature updates latest advances in rapidly changing fields of information security, smart power distribution, spectrum engineering, and multi-physics simulation.