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ISSN: 2079-9292    frecuency : 4   format : Electrónica

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Volume 6 Number 4 Part December Year 2017

30 articles in this issue 

Mark Sippel, Konstantin Lomakin, Gerald Gold and Klaus Helmreich

Applications and volume of integrated circuits operating at frequencies up to 100 GHz are steadily increasing. This establishes serious challenges, especially for temporarily contacting such products during manufacturing tests with appropriate signal inte... see more

 

Daniele Pinchera, Mario Lucido, Marco Donald Migliore, Fulvio Schettino and Gaetano Panariello

The aim of this paper is to present the experimental characterization of a reconfigurable parasitic patch antenna for Multiple Input Multiple Output (MIMO) applications. The proposed antenna is able to work with two different polarizations, providing sepa... see more

 

Matthias Steeg, Naruto Yonemoto, Jonas Tebart and Andreas Stöhr

A periodic leaky-wave antenna (LWA) design based on low loss substrate-integrated waveguide (SIW) technology with inset half-wave microstrip antennas is presented. The developed LWA operates in the V-band between 50 and 70 GHz and has been fabricated usin... see more

 

Luciano Mescia, Pietro Bia, Michele Alessandro Chiapperino and Diego Caratelli

Electromagnetic fields are involved in several therapeutic and diagnostic applications such as hyperthermia and electroporation. For these applications, pulsed electric fields (PEFs) and transient phenomena are playing a key role for understanding the bio... see more

 

Le Huy Trinh, Trong Nhan Le, Robert Staraj, Fabien Ferrero and Leonardo Lizzi

In this paper, a directional pattern-reconfigurable slot antenna at 2.4 GHz is presented. The antenna can provide three evenly-separated directional patterns and one omnidirectional pattern. The proposed solution is fully suitable for the integration in I... see more

 

Masudul Haider Imtiaz, Raul I. Ramos-Garcia, Volkan Yusuf Senyurek, Stephen Tiffany and Edward Sazonov

This paper presents the development and validation of a novel multi-sensory wearable system (Personal Automatic Cigarette Tracker v2 or PACT2.0) for monitoring of cigarette smoking in free-living conditions. The contributions of the PACT2.0 system are: (1... see more

 

Kyung-Tae Bae, Ik-Joon Lee, Byungjoo Kang, Sanghoon Sim, Laurence Jeon and Dong-Wook Kim

This paper presents an X-band GaN HEMT power amplifier with a third harmonic-tuned circuit for a higher power density per area and a higher power-added efficiency (PAE) using a 0.25 µm GaN HEMT process of WIN semiconductors, Inc. The optimum load impedanc... see more

 

Juan Pablo Rivera-Barrera, Nicolás Muñoz-Galeano and Henry Omar Sarmiento-Maldonado

Energy storage emerged as a top concern for the modern cities, and the choice of the lithium-ion chemistry battery technology as an effective solution for storage applications proved to be a highly efficient option. State of charge (SoC) represents the av... see more

 

E. George Walters III

Multiplication by a constant is a common operation for many signal, image, and video processing applications that are implemented in field-programmable gate arrays (FPGAs). Constant-coefficient multipliers (KCMs) are often implemented in the logic fabric ... see more

 

Shota Ogawa, Kentaro Nishimori, Ryotaro Taniguchi, Tsutomu Mitsui and Takefumi Hiraguri

Multi-beam massive multiple-input–multiple-output (MIMO) configurations that utilize high-power beam selection in the analog parts and blind algorithms such as the constant modulus algorithm (CMA), which do not require channel state information (CSI), in ... see more

 

Mazen Shanawani, Diego Masotti and Alessandra Costanzo

The increasing demand for more efficient energy harvesting solutions has urged research for better harvesting solutions than the presently-available ones. While p-n junction solar cells have become commercially widespread, they are expensive and suffer fr... see more

 

Giovanni Brusco, Alessandro Burgio, Daniele Menniti, Anna Pinnarelli, Nicola Sorrentino and Luigi Scarcello

The interest in the implementation of demand response programs for domestic customers within the framework of smart grids is increasing, both from the point of view of scientific research and from the point of view of real applications through pilot proje... see more

 

Chiara Ramella, Anna Piacibello, Roberto Quaglia, Vittorio Camarchia and Marco Pirola

Modern mobile communication signals require power amplifiers able to maintain very high efficiency in a wide range of output power levels, which is a major issue for classical power amplifier architectures. Following the load-modulation approach, efficien... see more

 

Filippo Costa, Michele Borgese, Marco Degiorgi and Agostino Monorchio

An overview of transmission/reflection-based methods for the electromagnetic characterisation of materials is presented. The paper initially describes the most popular approaches for the characterisation of bulk materials in terms of dielectric permittivi... see more

 

Anna Boehm, Xinchi Yu, Steffen Leonhardt and Daniel Teichmann

Unobtrusively acquired electrocardiograms (ECG) could substantially improve the comfort of patients. However, such ECGs are not used in clinical practice because (among other reasons) signal deformations impede correct diagnosis of the ECG. Here, methods ... see more

 

José Martins, João Alves, Jorge Cabral, Adriano Tavares and Sandro Pinto

Virtualization has been deployed as a key enabling technology for coping with the ever growing complexity and heterogeneity of modern computing systems. However, on its own, classical virtualization is a poor match for modern endpoint embedded system requ... see more

 

Gary Allwood, Graham Wild and Steven Hinckley

This paper reviews fiber Bragg grating sensing technology with respect to its use in mainstream industrial process applications. A review of the various types of sensors that have been developed for industries such as power generation, water treatment and... see more

 

Roman Kusche, Sebastian Hauschild and Martin Ryschka

Bioimpedance measurements have become a useful technique in the past several years in biomedical engineering. Especially, multi-channel measurements facilitate new imaging and patient monitoring techniques. While most instrumentation research has focused ... see more

 

Michael I. Newton, Edward A. Breeds and Robert H. Morris

Continuous Wave Nuclear Magnetic Resonance (CW-NMR) was a popular method for sample interrogation at the birth of magnetic resonance but has since been overlooked by most in favor of the now more popular pulsed techniques. CW-NMR requires relatively simpl... see more

 

Michael Short and Fathi Abugchem

Model predictive control (MPC) schemes employ dynamic models of a process within a receding horizon framework to optimize the behavior of a process. Although MPC has many benefits, a significant drawback is the large computational burden, especially in ad... see more

 

Ankush Oberai and Jiann-Shiun Yuan

Optical beam has been the veteran inspector of semiconductor wafer production house, ever since the birth of integrated circuit (IC). As technology and market place raise the bar on chip density, Moore’s law stretches to the limit. Due to its inherent phy... see more

 

Mehdi Salarkaleji, Mohammadreza Eskandari, Jimmy Ching-Ming Chen and Chung-Tse Michael Wu

Metamaterial leaky wave antennas (MTM-LWAs), one kind of frequency scanning antennas, exhibit frequency-space mapping characteristics that can be utilized to obtain a sufficient field of view (FOV) and reconstruct shapes in both remote sensing and microwa... see more

 

Omar J. Escalona, William D. Lynn, Gilberto Perpiñan, Louise McFrederick and David J. McEneaney

Abnormal heart rhythms (arrhythmias) are a major cause of cardiovascular disease and death in Europe. Sudden cardiac death accounts for 50% of cardiac mortality in developed countries; ventricular tachycardia or ventricular fibrillation is the most common... see more

 

Ramakalavathi Marapareddy, James V. Aanstoos and Nicolas H. Younan

This paper analyzes the use of a synthetic aperture radar (SAR) imagery to support levee condition assessment by detecting potential slide areas in an efficient and cost-effective manner. Levees are prone to a failure in the form of internal erosion withi... see more

 

Clement Ogugua Asogwa and Daniel T. H. Lai

The study of human body hydration is increasingly leading to new practical applications, including online assessment techniques for whole body water level and novel techniques for real time assessment methods as well as characterization for fitness and ex... see more

 

Boris G. Konoplev, Eugeny A. Ryndin, Alina S. Isaeva and Mark A. Denisenko

In this paper, we propose a method for monitoring surface defects like cracks in highly loaded structures. This method is based on the ability of surface cracks to open under the influence of external loads, thus causing the appearance of stresses and tea... see more

 

Pedro D. Manrique, Minzhang Zheng, Zhenfeng Cao, David Dylan Johnson Restrepo, Pak Ming Hui and Neil F. Johnson

Driven by technological advances and economic gain, society’s electronic systems are becoming larger, faster, more decentralized and autonomous, and yet with increasing global reach. A prime example are the networks of financial markets which—in contrast ... see more