Special Issue "Terahertz Technology and Its Applications"

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: 29 February 2020.

Special Issue Editor

Guest Editor
Prof. Dr. Victor Pacheco Peña

School of Engineering, Newcastle University, Merz Court, Newcastle Upon Tyne, NE1 7RU, UK.
Website | E-Mail
Interests: terahertz; antennas; lenses; sensors; metamaterials; metasurfaces; 2D materials; imaging systems; wave–matter interaction

Special Issue Information

Dear Colleagues,

The Terahertz frequency range (0.1 – 10)THz falls has demonstrated to provide many opportunities in different fields, such as high-speed communications, biomedicine, sensing, and imaging. This frequency range, lying between the fields of electronics and photonics, has been historically known as “terahertz gap” because of the lack of experimental as well as fabrication technologies. However, many efforts are now being carried out worldwide in order improve technology working at this frequency range. Within this context, the aim of this Special Issue is to provide a mechanism to highlight the work being done within this range of the electromagnetic spectrum. The topics covered (but not limited to) within this Special Issue are the following:

  • terahertz metamaterials and metasurfaces;
  • terahertz antennas;
  • sensing at terahertz frequencies;
  • non-destructive testing;
  • terahertz imaging and its applications;
  • terahertz spectroscopy;
  • communication systems at terahertz;
  • advanced terahertz materials;
  • plasmonics

Dr. Victor Pacheco-Peña
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

Open AccessArticle
Improvement in SNR by Adaptive Range Gates for RCS Measurements in the THz Region
Electronics 2019, 8(7), 805; https://doi.org/10.3390/electronics8070805
Received: 14 May 2019 / Revised: 27 June 2019 / Accepted: 15 July 2019 / Published: 18 July 2019
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Abstract
One of the major concerns in radar cross-section (RCS) measurements is the isolation of the target echo from unwanted spurious signals. Generally, the method of software range gate is applied to extract useful data. However, this method may not work to expectations, especially [...] Read more.
One of the major concerns in radar cross-section (RCS) measurements is the isolation of the target echo from unwanted spurious signals. Generally, the method of software range gate is applied to extract useful data. However, this method may not work to expectations, especially for targets with a large length-width ratio. This is because the effective target zone is dependent on the aspect angle. The implementation of conventional fixed range gates will introduce an uneven clutter signal that leads to a decline in signal-to-noise ratio. The influence of this uneven clutter signal becomes increasingly severe in the terahertz band, where the wavelength is short and the illumination power is weak. In this work, the concept of adaptive range gates was adopted to extract a target echo of higher accuracy. The dimension of the range gate was determined by the angle-dependent radial projection of the target. In order to evaluate the performance of the proposed method, both experimental measurements and numerical simulations were conducted. Noticeable improvements in the signal-to-noise ratio at certain angles were observed. Full article
(This article belongs to the Special Issue Terahertz Technology and Its Applications)
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Open AccessArticle
Accurately Modeling of Zero Biased Schottky-Diodes at Millimeter-Wave Frequencies
Electronics 2019, 8(6), 696; https://doi.org/10.3390/electronics8060696
Received: 14 May 2019 / Revised: 13 June 2019 / Accepted: 17 June 2019 / Published: 20 June 2019
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Abstract
This paper presents and discusses the careful modeling of a Zero Biased Diode, including low-frequency noise sources, providing a global model compatible with both wire bonding and flip-chip attachment techniques. The model is intended to cover from DC up to W-band behavior, and [...] Read more.
This paper presents and discusses the careful modeling of a Zero Biased Diode, including low-frequency noise sources, providing a global model compatible with both wire bonding and flip-chip attachment techniques. The model is intended to cover from DC up to W-band behavior, and is based on DC, capacitance versus voltage, as well as scattering and power sweep harmonics measurements. Intensive use of 3D EM (ElectroMagnetic) simulation tools, such as HFSSTM, was done to support Zero Biased Diode parasitics modeling and microstrip board modeling. Measurements are compared with simulations and discussed. The models will provide useful support for detector designs in the W-band. Full article
(This article belongs to the Special Issue Terahertz Technology and Its Applications)
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