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Electronics, Volume 9, Issue 10

October 2020 - 192 articles

Cover Story: This paper presents a methodology to design a wideband radio frequency variable gain amplifier (RF–VGA) in a low-cost SiGe BiCMOS 0.35 µm process. The circuit uses two amplifiers based on second-generation controlled current conveyors (CCCII). The main feature of this circuit is its wideband input match with a reduced NF (5.5–9.6 dB), without passive elements and, to the authors' knowledge, the lowest die footprint reported (62x44 µm2). Due to the nature of the circuit, when the gain is increased the power consumption is reduced. The architecture is suitable for designing wideband, low-power, and low-noise amplifiers. The design achieves a tunable gain of 6.7–18 dB and power consumption of 1.7 mA with a ±1.5 V DC supply. At maximum gain, the proposed RF-VGA covers from DC up to 1 GHz. View this paper
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Articles (192)

  • Article
  • Open Access
16 Citations
5,100 Views
16 Pages

Study on Battery Charging Converter for MPPT Control of Laser Wireless Power Transmission System

  • Seongjun Lee,
  • Namgyu Lim,
  • Wonseon Choi,
  • Yongtak Lee,
  • Jongbok Baek and
  • Jungsoo Park

21 October 2020

Herein, the voltage and current output characteristics of a laser photovoltaic (PV) module applied to a wireless power transmission system using a laser beam are analyzed. First, an experiment is conducted to obtain the characteristic data of the vol...

  • Article
  • Open Access
38 Citations
4,696 Views
16 Pages

21 October 2020

The outbreak of the respiratory disease caused by the new coronavirus (COVID-19) has caused the world to face an existential health crisis. To contain the infectious disease, many countries have quarantined their citizens for several weeks to months...

  • Article
  • Open Access
14 Citations
3,346 Views
15 Pages

InSight2: A Modular Visual Analysis Platform for Network Situational Awareness in Large-Scale Networks

  • Hansaka Angel Dias Edirisinghe Kodituwakku,
  • Alex Keller and
  • Jens Gregor

21 October 2020

The complexity and throughput of computer networks are rapidly increasing as a result of the proliferation of interconnected devices, data-driven applications, and remote working. Providing situational awareness for computer networks requires monitor...

  • Article
  • Open Access
34 Citations
4,974 Views
13 Pages

A Study of Cross-Linguistic Speech Emotion Recognition Based on 2D Feature Spaces

  • Gintautas Tamulevičius,
  • Gražina Korvel,
  • Anil Bora Yayak,
  • Povilas Treigys,
  • Jolita Bernatavičienė and
  • Bożena Kostek

20 October 2020

In this research, a study of cross-linguistic speech emotion recognition is performed. For this purpose, emotional data of different languages (English, Lithuanian, German, Spanish, Serbian, and Polish) are collected, resulting in a cross-linguistic...

  • Article
  • Open Access
9 Citations
5,274 Views
22 Pages

20 October 2020

Roundabouts are a highway engineering concept meant to reduce congestion and improve safety. However, experience shows that capacity of roundabouts is limited, and safety is not optimal. However, these improvements in capacity and safety should be co...

  • Article
  • Open Access
9 Citations
4,101 Views
26 Pages

20 October 2020

In this paper, we propose a reinforcement learning (RL) based Medium Access Control (MAC) protocol with dynamic transmission range control (TRC). This protocol provides an adaptive, multi-hop, energy-efficient solution for communication in underwater...

  • Article
  • Open Access
1 Citations
2,727 Views
23 Pages

20 October 2020

To ensure the driving safety in vehicular network, it is necessary to construct a local dynamic map (LDM) for an extended range. Using the standard vehicular communication protocols, however, vehicles can construct the LDM for only one-hop range. Con...

  • Article
  • Open Access
4 Citations
5,625 Views
9 Pages

20 October 2020

An ultra-low quiescent current under-voltage lockout (UVLO) circuit for a high-voltage gate driver integrated circuit (HVIC) is described for application in portable devices. The UVLO circuit consumes the static current in the high-side circuitry and...

  • Article
  • Open Access
6 Citations
3,728 Views
22 Pages

Feasibility of Wireless Horse Monitoring Using a Kinetic Energy Harvester Model

  • Ben Van Herbruggen,
  • Jaron Fontaine,
  • Anniek Eerdekens,
  • Margot Deruyck,
  • Wout Joseph and
  • Eli De Poorter

20 October 2020

To detect behavioral anomalies (disease/injuries), 24 h monitoring of horses each day is increasingly important. To this end, recent advances in machine learning have used accelerometer data to improve the efficiency of practice sessions and for earl...

  • Article
  • Open Access
14 Citations
3,055 Views
19 Pages

20 October 2020

This paper proposes a backstepping fuzzy sliding mode control method for the antiskid braking system (ABS) of unmanned aerial vehicles (UAVs). First, the longitudinal dynamic model of the UAV braking system is established and combined with the model...

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Electronics - ISSN 2079-9292