LTE Advanced Pro: the mobile future of the Internet of Things

In the not too . distant future, the Internet of Things will connect several billions of devices to the Internet. This is only possible if cost-effective communications networks and wireless devices are available. By using wireless technologies such as Bluetooth®, ZigBee, Wi-Fi or cellular networks, almost anything, anywhere in the world, can be connected quickly and reliably to the Internet. The latest cellular technologies, eMTC and NB‑IoT, will play an important role in the success of the Internet of Things. These technologies pave already the way to 5G networks of the future optimized not only for enhanced mobile broadband applications but for the diverse IoT applications requiring massive machine type communication (mMTC) or ultra-reliable, low-latency communication (URLLC)

Not even the best software in the world works if the hardware doesn’t.

This article . is a summary of the Keynote Speech given by Michel Mardiguian and Ulf Nilsson at Electronic Environment Conference in 2016. The intention was to give an overview of what EMC is, how it influences an organisation and to motivate management to implement an EMC culture in their organisation.

Advanced own electronics and SW development – a survival issue for trucks and buses

The importance . and amount of electronics and software (SW) used in heavy vehicles is growing for every year. In order to meet customer needs of sustainable and reliable transports, very high requirements of reliability and robustness are necessary. In this very demanding truck environment, traditional component testing needs to be complemented with on-board software diagnostics and broad data collection from connected vehicles. In this way, real and potential failures can be detected very early on large fleets also then failure rates are relatively low.

Shielded cables: Their Role in Reducing EMI Susceptibilty and Emissions

This is the 5th article . of our ”EMC awareness” series. At this point, before addressing the coupling path, occuring from (or to) the power mains, it was in order to review a solution that is widely involved in controlling Conducted, Radiated and Crosstalk EMI situations: the use of shielded conductors. The subject is not that simple and requires some insight. This article will explain as clearly as possible for the non-specialist how a cable shield works, how much EMI reduction can be expected, and why the choice of certain cables or installation practices will result in mediocre results.

Silent Knowledge within EMC

Within theory of knowledge, . it is common to distinguish between explicit- and implicit knowledge. Sometimes the term ”silent knowledge is used”. What is silent knowledge within EMC?

Detection of Electromagnetic Interference at Critical Societal Functions

The use of wireless . technology has exploded in recent decades and has led to the fact that most individuals today use such technology in some form. This is also a general trend in other parts of the society, such as security and safety applications and for machine-to-machine (M2M) communication. We can also see rapidly increasing use of wireless technologies in critical societal functions such as energy production, transport, logistics, banking and financial systems, and industrial and security applications. This despite the fact that civilian wireless technologies are very sensitive to electromagnetic interference signals.

A Review of the principal EMI Coupling Paths – The key to understanding and preventing or solving EMI problems Part 2

Radiation Paths and cable-to-cable coupling . This is the 4th article of our EMC awareness series. The former articles, after a broad overview of the EMC subject, reviewed the principal Civilian and Military Norms and test methods, insisting on the legal inforcement of these verifications in Europe, where they are turned into mandatory, « must-comply » laws. Given that source/coupling path/victim concept is the basic approach to EMC, most of the time it is the coupling path between the culprit source and the victim equipment wich is the crux of the problem, hence of its solutions. The 5 essential coupling mechanisms were listed, by which EM Interference take place. Although any equipment can be alternately the victim, or the source, of an EMI problem, we focused on EM susceptibility as being the manifestation that appears first in the designer’s or field engineer’s worries.

Measurement Method for Determining Shielding Effectiveness of Cable Feedthroughs

An efficient and repeatable measurement method for determining shielding effectiveness of cable feedthroughs based on the use of nested reverberation chambers is presented. The measurement method is validated by comparing measurements on an isolated conductor penetrating the shield with a simple theory based on basic circuit theory in combination with antenna theory. The agreement between measurements and simulations is very good in the considered frequency range 400 MHz to 4 GHz. Measurement results for commercially available cable feedthrough are also presented.

A Simple Method to Identify Hidden Pulsed Interference Signals in Radiated Emission Measurements

In certain applications it is of highly importance to be able to identify unintentional pulsed interference sources. One reason is that this kind of interference can cause severe performance degradation of modern digital wireless communications. In this paper we show that pulsed interference sources can be identified by standard radiated emission measurements performed in the frequency domain.

A Review of the principal EMI Coupling Paths – The key to understanding and preventing or solving EMI problems Part 1

Part 1: Conduction Paths . As briefly described in our introductory Article N°1 ( Issue #2-2015 of EE Magazine), ElectroMagnetic Interference is a Source/Coupling Paths/Victim situation, the basis for an overall understanding of EMI control in order to reach a satisfactory level of compatibility (EMC). We also said that reducing the interference at the source itself, or at the victim’s levels, were most of the time unpractical. Therefore, the only remaining area for action is in general the coupling path, which implies understanding the coupling mechanism.