The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The well-established calibration techniques for loop antennas either require the knowledge of some parts of the antenna design or the field pattern of a standard field generator must be well known or fully theoretically describable. The so called Contactless Vector Network analysis (CVNA) method is a new and traceable approach, circumventing these requirements. This paper is about the further development...
In this study, RLCG method is used to estimate a low voltage transmission line for twisted overhead and underground low voltage distribution cables. This model is applied for cables with different types, different sections and lengths taking account the capacitive and the inductive coupling. SPICE determination of transmission characteristics and cables crosstalk are validated throughout physical...
Power line communication is becoming the backbone of the smart home and grid applications. This technology does not stop showing its ability and advantages. Enhancing its performance inside a home network requires topology estimation and transmission modeling techniques. We propose a simulator which is able to extract the transfer function between two chosen outlets. The simulator uses the multipath...
The utilization of the de-embedding method for Electromagnetic Compatibility (EMC) component measurements in automotive applications presents a practicable solution approach for improved attenuation measurement results of the device under test (DUT). The attenuation of a component prevents the passing on of conducted emissions inside the car from the mostly screened high-voltage level to the unshielded...
Pin-capacitor distance is studied for the efficiency of local decoupling capacitors in power delivery networks (PDN) designed as power transmission lines. The inefficiency of remote decoupling capacitors is explained with a physical insight using the fundamental principles of transmission line theory. The proposed model conforms well to general observations and is supported by numerical examples.
This paper presents a miniaturized near field shielded magnetic probe, fabricated using low cost printed circuit board technology. The probe performance is calibrated and validated from 1MHz–1GHz. The probe is fabricated on an FR4 substrate of thickness 0.8mm and consists of 3 layers with the signal in the middle layer and top and bottom layers dedicated to ground planes. The aperture size of the...
This paper presents an original wide-band method (from 1 MHz to 1 GHz in the paper) for the electromagnetic (EM) characterization of a Ni-Zn ferrite tile. The method requires the S-parameter measurements of a TEM structure (a stripline cell in this paper) without and with the sample under test (SUT). In parallel, the experiment is faithfully reproduced by simulation through the FDTD method for both...
An automotive application can see several perturbations during his life. In this paper we study how the LIN communication under ESD stress behaves and what sort of failures could be observed. We proposed a characterisation method in order to quantify soft failures. These different failures are classified following a criteria defined in the document. A susceptibility level for the LIN communication...
Inter-laboratory comparisons are important to evaluate the capabilities of EMC test laboratories. In this contribution, we present a device for such comparisons which is able to assess the test capabilities of a laboratory according to the IEC 61000-4-3 standard. The device is intended to be tested as a normal EUT. It is equipped with appropriate detecting mechanisms that record all important parameters...
In numerical electromagnetic simulations of nondestructive testing methods, single and multilayer CAD models of woven glass and carbon fiber composites are analyzed to find intentionally introduced material defects. The models are excited by plane waves up to frequencies of 650 GHz (submillimeter wavelength) and by Gaussian pulses of 5 ps duration. The transmitted and reflected electric field patterns...
Electromagnetic interference can degrade radio receiver severely. For this purpose, there is a need to monitor and quantify interference incidents in radio frequency bands. With this goal, a detection method is developed that is intended to be used in a portable detection system for interference detection in frequency bands, where radio transmissions are sporadically appearing. The method is used...
The body shadow effect (BSE) is defined as the underestimation in logged data by personal exposimeters (PEMs) when the PEM is worn by the user (on-body location) that obstructs the direct signal path between the measuring device and the radiation source. This study considers the levels of exposure at 2.4 GHz, measured by PEMs, as a received signal composed of three fading components: path loss, local...
This paper describes the results of evaluation and simulation modeling of the influence of a silicon substrate propagation disturbance on circuit operation in silicon-on-insulator BCD (BIPOLAR/CMOS/LDMOS) process. In the evaluation, the susceptibility of the Widlar bandgap voltage reference (BGR) to a disturbance propagating from the substrate is measured by direct RF power injection tests in the...
A highly versatile broadband equivalent circuit model for arbitrary lossy wire networks including moderate radiation losses is presented. Based on a quasistatic Method-of-Moments-eigenvalue problem a modal multiport circuit is derived with minimal computational effort, offering fast convergence and inherent stability for time-domain simulations with arbitrary active/passive non-linear loads. The model...
An experimental study on the electromagnetic field (EMF) coupling to the inert instrumented bridge wires is reported in this work. The experimental studies are conducted on the S and X bands, as the hazards of electromagnetic radiation to ordnance (HERO) environment is maximum in these two frequency bands. The study was carried out with a metallic cylindrical body to study the resulting effects. In...
The impedance of series pairs of 18650 format cylindrical lithium ion battery cells has been measured over the frequency range from 100 kHz to 200 MHz using a vector network analyser, and simulated using a full-wave 3D field solver. The results indicate that a hybrid simulation approach, based on a simple 3D model coupled with an equivalent circuit model derived from measurements on a single cell,...
An RF electromagnetic (EM) characterization of high pulsed voltage electrode is investigated in the present paper. The electrode acts as an electric-or E-field pulse generator for atom probe tomography (APT) application. The proposed electrode device is essentially comprised of a microstrip transmission line (TL) combined with via hole. The challenging prediction of the electrode signal integrity...
In this paper, we focus on the problem of evaluating the performance of a cable harness for a complex aeronautical system. Indeed, the various studies carried out in recent years on the subjects of crosstalk and modeling of the power harnesses made it possible to put in place of model bricks and tools of simulations. In addition, the measurement of the impedances of certain equipment has highlighted...
For electromagnetic interaction analysis in power electronics, the study and the design of Near-Field integrated magnetic antennas are presented. An antenna model is developed and compared to experimental data. The modeling and the performances of the prototype is discussed in function of the source position and the antenna design.
The use of virtual simulation in industrial design and validation processes has considerably increased over the last years, due to better algorithms, affordable computational power with good performance and gradual acceptance of its results by technical experts. Nevertheless, although electromagnetic simulation has also evolved, it still does not have the same penetration in validation processes as...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.