Abstract: This paper presents an active steering antenna system that intuitively beam steers for the best RF signal, achieving ubiquitous coverage and throughput enhancement. The direction of antenna radiation pattern can be arbitrarily rotated in accordance with the passive and active tuning elements. Using 802.11ac Wi-Fi, or Wi-Fi 5 as an example, the authors present a demonstration and experimental result of an active steering antenna feedback system and how it can improve the coverage and throughput. The sensing and control algorithm of the active steering antenna system is applicable for different communication protocols, makes it feasible in a multi radio access technology (RAT), multi connectivity scenario with aggregation of traffic flows from different sources such as IoT, Wi-Fi 6, and
Abstract: Transient voltage suppression (TVS) based on multilayer varistors (MLVs) is designed to prevent damage to sensitive devices and circuits from voltage spikes. The damage to sensors, circuits and electronic components can disable critical functions, rendering a vehicle inoperable until repairs are made. Sources of damaging voltage spikes can include electrostatic discharges (ESD, or static shock), induced secondary voltage from lightning strikes (a high voltage ESD), electromagnetic pulses, voltage surge from motor switching, jump starts, energizing solenoid coil actuators, arcing from faults and load dump from alternator switching. When an electrical circuit or system experiences damaging voltage spikes, a normally off MLV is activated and protects the device by redirecting the spike to ground. Publication: Electronics360 (IEEE GlobalSpec) Published: December
Abstract: Rated by PCNS 2019 Attendees as BEST keynote presentation In the past, system power budgets and data/operating speeds were wide and slow respectively. This allowed passive component selection and consideration to occur at the end of the design cycle. Today in the digital world, emerging single chip semiconductors now have enough processing power to become a real time – reconfigurable end system. Publication: European Passive Components Institute Published: October 8th, 2019 Article Link: https://epci.eu/passive-components-keys-to-enabling-advanced-future-system-designs/
Abstract: The continuous advancement of medical device technology has led to a dramatic increase in the number of implantable devices that utilize onboard electronics. For example, devices used to treat cardiac arrhythmia — including pacemakers and implantable cardioverter defibrillators (ICDs) — frequently contain sensors to monitor heartbeats, onboard memory to record that data, processors to determine which therapy is required, and circuitry to generate either electrical impulses or shocks to correct the heart’s operation. In the U.S. alone, more than 300,000 cardiac arrhythmia devices — which include pacemakers and ICDs — are implanted each year. Neurostimulator implants – such as spinal cord stimulators, which are used to treat chronic pain – are also increasing as new products reach the market.
Abstract: The rate of change in the satellite world is accelerating and along with that comes the changes needed for power supplies onboard. This article provides a high-level view of the emergence of base metal electrode (BME) multilayer ceramic capacitors (MLCCs) for satellite applications. After providing some background on MLCCs and the development of their electrode materials, this article describes the advances in component materials, construction and fabrication techniques, and the track record in automotive and other sectors that have proven the reliability of BME MLCCs. Then the size advantages which motivate the use of these capacitors in space are discussed. The rest of this article reviews the reliability studies that AVX has performed to qualify BME MLCCs for space,
Abstract: Over the years, ceramic capacitors have been used interchangeably with tantalum in many applications, class II ceramics being the one electrostatic technology that can achieve the high capacitance values typically associated with electrolytic capacitors. But because of MLCC shortages, we are currently at a point where designers are reconsidering electrolytic capacitors for applications that had switched to class II ceramic in recent years. However, migrating circuit designs from MLCCs to tantalum electrolytics requires an understanding of multiple issues that impact how these different styles of capacitors will perform in the intended application. This article discusses the key parameters that differentiate these two capacitor categories in the various roles they play in power supply applications (bypassing, filtering, decoupling, bulk hold
Abstract: Electronic components in safety-relevant systems such as medical devices, aircraft controls, airbags or driver assistance systems must meet the highest requirements in terms of reliability and safety. This also applies to passive components such as ceramic capacitors. Publication: Elektronik Praxis Published: 3/4/2019 Article Link: https://www.elektronikpraxis.vogel.de/lebensentscheidend-mlccs-fuer-sicherheitskritische-anwendungen-in-rauer-umgebung-a-805198
End systems are evolving at faster paces and typically involve a common theme where increasingly complex electronic content have to work at faster speeds, in smaller packages, powered by lower voltages. That trend shows little sign of slowing since the sub-components used in creating systems, whether passive device or active, are shrinking due to improved material purity, new device processing and advances in manufacturing. Passive Components Blog powered by EPCI December 18, 2018 https://passive-components.eu/miniaturization-and-advances-of-bulk-head-mounted-emi-filters/