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  Subjects -> ELECTRONICS (Total: 207 journals)
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IEEE Letters on Electromagnetic Compatibility Practice and Applications
Number of Followers: 1  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 2637-6423
Published by IEEE Homepage  [228 journals]
  • Spectral Response of the Conical Monopole as Field Sensor Calibration
           Setup

    • Free pre-print version: Loading...

      Pages: 22 - 24
      Abstract: This work presents a comparative analysis of the spectral response of two versions of the conical monopole on a ground plane calibration setups for electromagnetic field sensors. Relevant characteristics of such setups are established as practical considerations on the effective calibration bandwidth and the required dynamic range in the measurement chain.
      PubDate: June 2022
      Issue No: Vol. 4, No. 2 (2022)
       
  • A Comparative Performance Analysis of 6T & 9T SRAM Integrated
           Circuits: SOI vs. Bulk

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      Authors: Qazi Mashaal Khan;Richard Perdriau;Mohamed Ramdani;Mohsen Koohestani;
      Pages: 25 - 30
      Abstract: This letter evaluates the performance of 6T & 9T static random access memory (SRAM) cells, for data stability and power metrics, with the aim to compare silicon-on-insulator (SOI) and bulk CMOS technologies. Each SRAM topology was designed & simulated in 180 nm 5 V XFAB-SOI and AMS-bulk processes, using optimized parameters and compatible devices. The fundamental variables analyzed were read noise margins, write trip current & voltage as well as leakage current (LC) and static power dissipation (SPD) under process and temperature (PT) variations. The static noise margin (SNM) butterfly curve and N-curve methodologies were used to assess the mentioned parameters. Compared to bulk technology, the SRAM cells designed with SOI were found to have lower SPD & LC, higher data stability, lower write ability, larger sensitivity to process variations and higher resilience to temperature deviations.
      PubDate: June 2022
      Issue No: Vol. 4, No. 2 (2022)
       
  • A Hybrid Model to Estimate Mean of Maximum Fields Inside Small Metal
           Enclosures Using Deep Neural Networks and Maximum Likelihood Estimator

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      Authors: Neda Nourshamsi;Amir H. Jafari;Pedro Uría Rodríguez;Jeffrey A. Nanzer;
      Pages: 31 - 35
      Abstract: This letter addresses a new regression model with the deep neural network (DNN) to estimate the mean of the maximum field inside two different nested-reverberation chamber configurations. In this model, a frequency range that the enclosure is expected to be in the over-moded regime is used as an input of the network, and the mean of the maximum field for both aperture scenarios is used as the output of the network. A 16-layer network with two regression heads provided the best regression model for both configurations, manifesting the trained model can accurately extrapolate the mean of maxima in the other frequency steps that are not used in the training data set. The tested and training root-mean-squared errors $(485e^{-5}, 851e^{-5})$ are achieved with the network, demonstrating the network is feasible to detect the mean of maxima for two different nested-chamber configurations, extending the earlier work which considered estimation of the mean of maxima for a single nested chamber-configuration.
      PubDate: June 2022
      Issue No: Vol. 4, No. 2 (2022)
       
  • Extension on IEC 61000-3-6’s General Summation Law to Estimate Harmonic
           Current at PCC Based on Probability Distribution

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      Authors: Diego Trelles-Molina;Regulo A. Rosado-Romero;Daniel A. Ortuño-González;Esteban Fernández;
      Pages: 36 - 39
      Abstract: Measurements of current harmonics at the point of common coupling (PCC) of individual customer facilities are necessary to assess limit compliance. However, customers do not always have access to their PCC, forcing them to take measurements downstream and make estimations. This letter expands the capabilities of the general summation law introduced in IEC/TR 63000-3-6 from transmission systems to individual customer facilities, allowing them to accurately perform such estimations. The main difference with these facilities and whole transmission systems is a smaller number of harmonic sources. Guidelines to perform the proposed estimations are given. Typical cases are simulated and the probabilities which support the proposed summation exponents are analyzed.
      PubDate: June 2022
      Issue No: Vol. 4, No. 2 (2022)
       
  • Applicability of Wenner’s Method for Measuring Resistivity and
           Permittivity of Deep Soil at High Frequency

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      Authors: Bo Zhang;Zhuoran Liu;
      Pages: 40 - 43
      Abstract: Evaluating the frequency-dependent resistivity and permittivity of deep soil is necessary for accurately analyzing the transient performance of grounding device. In this paper the skin effect of soil and the effect of the current measurement lead of Wenner’s method on the current distribution in the soil at different frequency are investigated by numerical simulation, with which the applicability of Wenner’s method for measuring the frequency-dependent resistivity and permittivity of deep soil is analyzed. The results show that the Wenner’s method can definitely be used only at frequencies below 500 Hz for $100~{Omega }text{m}$ soil, because at higher frequency most of the current collects in the topsoil due to the skin effect and the induction of the current measurement lead on the current distribution in the soil. The higher the resistivity, or the shorter the distance between the current poles, the higher the applicable frequency.
      PubDate: June 2022
      Issue No: Vol. 4, No. 2 (2022)
       
  • Tunable, Wideband X-Band Microwave Absorbers Using Variable Chessboard
           Surfaces

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      Authors: F. Ruiz-Perez;S. M. López Estrada;F. Caballero Briones;
      Pages: 44 - 46
      Abstract: In this communication, the design and electromagnetic absorption of a metamaterial coating with a broad modulable absorption in the 8 to 12 GHz frequency range, corresponding to the X-band, is reported. The unit of the coating material consists of a chessboard with chess squares of different heights made of a rGO/Fe3O4/PPy composite. The influence of the height ratio of the chess squares in a $5 times 5$ chessboard on the reflection loss ( $R_{L}$ ) response of electromagnetic radiation in the X band was studied in silico. The results demonstrate that the chessboard-like microwave absorber exhibit tunable response, with a maximum effective reflection loss of −37.43 dB/GHz in the X band range, ca. 24 % higher than the best single layer coating.
      PubDate: June 2022
      Issue No: Vol. 4, No. 2 (2022)
       
  • Spectral Response of the Conical Monopole as Field Sensor Calibration
           Setup

    • Free pre-print version: Loading...

      Authors: F. Albarracin;D. Martinez;G. N. Appiah;J. Galvis;C. Kasmi;N. Mora;
      Pages: 47 - 51
      Abstract: This letter presents a comparative analysis of the spectral response of two versions of the conical monopole on a ground plane calibration setups for electromagnetic field sensors. Relevant characteristics of such setups are established as practical considerations on the effective calibration bandwidth and the required dynamic range in the measurement chain.
      PubDate: June 2022
      Issue No: Vol. 4, No. 2 (2022)
       
 
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