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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
11 Citations
2,584 Views
26 Pages

20 October 2020

Recent studies in data anonymization techniques have primarily focused on MapReduce. However, these existing MapReduce based approaches often suffer from many performance overheads due to their inappropriate use of data allocation, expensive disk I/O...

  • Article
  • Open Access
6 Citations
4,650 Views
17 Pages

A 4-bit 36 GS/s ADC with 18 GHz Analog Bandwidth in 40 nm CMOS Process

  • Hanbo Jia,
  • Xuan Guo,
  • Xuqiang Zheng,
  • Xiaodi Xu,
  • Danyu Wu,
  • Lei Zhou,
  • Jin Wu and
  • Xinyu Liu

20 October 2020

This paper presents a 4-bit 36 GS/s analog-to-digital converter (ADC) employing eight time-interleaved (TI) flash sub-ADCs in 40 nm complementary metal-oxide-semiconductor (CMOS) process. A wideband front-end matching circuit based on a peaking induc...

  • Article
  • Open Access
7 Citations
3,413 Views
17 Pages

20 October 2020

The power production of electrical Renewable Energy Sources (RES), mainly PV and wind energy, is affected by their primary source of energy: solar radiation value or wind strength. Electrical networks with a large share of these sources must manage t...

  • Article
  • Open Access
4 Citations
3,145 Views
8 Pages

Comparing Novel MMIC and Hybrid Circuit High Efficiency GaAs Schottky Diode mm-Wave Frequency Doublers

  • J. R. Powell,
  • Colin Viegas,
  • Hoshiar Singh Sanghera,
  • P. G. Huggard and
  • Byron Alderman

19 October 2020

A novel Schottky diode frequency doubler in E-band, using biased series-connected diodes in the output waveguide, is reported. The doubler was implemented using a GaAs Schottky Monolithic Microwave Integrated Circuit (MMIC) process with integrated ca...

  • Article
  • Open Access
2,198 Views
9 Pages

19 October 2020

A physics-based model for the output current–voltage (I–V) characteristics of AlGaN/GaN HFETs is developed based on AlGaAs/GaAs HFETs. It is demonstrated that Polarization Coulomb Field (PCF) scattering greatly influences channel electron...

  • Article
  • Open Access
6 Citations
2,898 Views
11 Pages

greenMAC Protocol: A Q-Learning-Based Mechanism to Enhance Channel Reliability for WLAN Energy Savings

  • Rashid Ali,
  • Muhammad Sohail,
  • Alaa Omran Almagrabi,
  • Arslan Musaddiq and
  • Byung-Seo Kim

19 October 2020

We have seen a promising acceptance of wireless local area networks (WLANs) in our day-to-day communication devices, such as handheld smartphones, tablets, and laptops. Energy preservation plays a vital role in WLAN communication networks. The effici...

  • Article
  • Open Access
2 Citations
2,739 Views
14 Pages

Fault Tolerant Digital Data-Path Design via Control Feedback Loops

  • Oana Boncalo,
  • Alexandru Amaricai and
  • Zsófia Lendek

19 October 2020

In this paper, we propose a novel fault tolerant methodology for digital pipelined data-paths called Control Feedback Loop Error Decimation (CFLED), that reduces the error magnitude at the outputs. The data-path is regarded from a control perspective...

  • Review
  • Open Access
16 Citations
4,509 Views
32 Pages

19 October 2020

Intrusion Detection Systems (IDSs) automatically analyze event logs and network traffic in order to detect malicious activity and policy violations. Because IDSs have a large number of false positives and false negatives and the technical nature of t...

  • Article
  • Open Access
1 Citations
3,316 Views
9 Pages

19 October 2020

P-grid is a typical feature in power devices to block high off-state voltage. In power devices, the p-grid is routinely coupled to an external electrode with an Ohmic contact, but Schottky contact to the p-grid is also proposed/adopted for certain pu...

  • Feature Paper
  • Article
  • Open Access
11 Citations
3,919 Views
32 Pages

Control Scheme of a Bidirectional Inductive Power Transfer System for Electric Vehicles Integrated into the Grid

  • Emilio J. Molina-Martínez,
  • Pedro Roncero-Sánchez,
  • Francisco Javier López-Alcolea,
  • Javier Vázquez and
  • Alfonso Parreño Torres

19 October 2020

Inductive power transfer (IPT) systems have become a very effective technology when charging the batteries of electric vehicles (EVs), with numerous research works devoted to this field in recent years. In the battery charging process, the EV consume...

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Electronics - ISSN 2079-9292